From 404599e00c2f4078b7696dd5ec95861d8bd490b4 Mon Sep 17 00:00:00 2001
From: Florian Berthold <florian.berthold@sub-net.at>
Date: Fri, 23 Jan 2026 05:22:56 +0100
Subject: [PATCH] Complete KiCad schematic with full wiring
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Schematic now includes:
- All 22 components placed with proper symbols
- Complete power section: J1 → D1 → U1 → +3.3V rail
- Power LED circuit (R2 + D2)
- RP2040-Zero module with power and signal connections
- OLED module with I2C wiring (SDA/SCL)
- Trigger output: GP2 → U2 (74LVC1G17) → R3 → J2
- Return input: J3 → R4 → R5/R6 divider → D3/D4 clamps → U3 → GP3
- Button: +3.3V → R1 → SW1 → GND
- Decoupling caps C4, C5 for U2, U3
- All power symbols and ground connections
- Net labels for inter-section connections

Embedded lib_symbols for standalone schematic use.
---
 hardware/kicad/SN-L00.kicad_sch | 1247 ++++++++++++++++++++++++-------
 1 file changed, 990 insertions(+), 257 deletions(-)

diff --git a/hardware/kicad/SN-L00.kicad_sch b/hardware/kicad/SN-L00.kicad_sch
index 4f4a302..ed1ed8d 100644
--- a/hardware/kicad/SN-L00.kicad_sch
+++ b/hardware/kicad/SN-L00.kicad_sch
@@ -11,422 +11,1155 @@
     (company "SubModular / Sub-Net e.U.")
   )
 
-  ;; Power symbols
+  (lib_symbols
+    ;; Power symbols
+    (symbol "power:+12V"
+      (power)
+      (pin_names (offset 0))
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "#PWR" (at 0 -3.81 0) (effects (font (size 1.27 1.27)) hide))
+      (property "Value" "+12V" (at 0 3.556 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "+12V_0_1"
+        (polyline (pts (xy -0.762 1.27) (xy 0 2.54)) (stroke (width 0) (type default)) (fill (type none)))
+        (polyline (pts (xy 0 0) (xy 0 2.54)) (stroke (width 0) (type default)) (fill (type none)))
+        (polyline (pts (xy 0 2.54) (xy 0.762 1.27)) (stroke (width 0) (type default)) (fill (type none)))
+      )
+      (symbol "+12V_1_1"
+        (pin power_in line (at 0 0 90) (length 0) (name "+12V" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+      )
+    )
+    (symbol "power:+3.3V"
+      (power)
+      (pin_names (offset 0))
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "#PWR" (at 0 -3.81 0) (effects (font (size 1.27 1.27)) hide))
+      (property "Value" "+3.3V" (at 0 3.556 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "+3.3V_0_1"
+        (polyline (pts (xy -0.762 1.27) (xy 0 2.54)) (stroke (width 0) (type default)) (fill (type none)))
+        (polyline (pts (xy 0 0) (xy 0 2.54)) (stroke (width 0) (type default)) (fill (type none)))
+        (polyline (pts (xy 0 2.54) (xy 0.762 1.27)) (stroke (width 0) (type default)) (fill (type none)))
+      )
+      (symbol "+3.3V_1_1"
+        (pin power_in line (at 0 0 90) (length 0) (name "+3.3V" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+      )
+    )
+    (symbol "power:GND"
+      (power)
+      (pin_names (offset 0))
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "#PWR" (at 0 -6.35 0) (effects (font (size 1.27 1.27)) hide))
+      (property "Value" "GND" (at 0 -3.81 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "GND_0_1"
+        (polyline (pts (xy 0 0) (xy 0 -1.27) (xy 1.27 -1.27) (xy 0 -2.54) (xy -1.27 -1.27) (xy 0 -1.27)) (stroke (width 0) (type default)) (fill (type none)))
+      )
+      (symbol "GND_1_1"
+        (pin power_in line (at 0 0 270) (length 0) (name "GND" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; Connector 2x5
+    (symbol "Connector_Generic:Conn_02x05_Odd_Even"
+      (pin_names (offset 1.016) hide)
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "J" (at 1.27 7.62 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "Conn_02x05_Odd_Even" (at 1.27 -7.62 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "Conn_02x05_Odd_Even_1_1"
+        (rectangle (start -1.27 5.08) (end 3.81 -5.08) (stroke (width 0.254) (type default)) (fill (type background)))
+        (pin passive line (at -5.08 5.08 0) (length 3.81) (name "Pin_1" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 7.62 5.08 180) (length 3.81) (name "Pin_2" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at -5.08 2.54 0) (length 3.81) (name "Pin_3" (effects (font (size 1.27 1.27)))) (number "3" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 7.62 2.54 180) (length 3.81) (name "Pin_4" (effects (font (size 1.27 1.27)))) (number "4" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at -5.08 0 0) (length 3.81) (name "Pin_5" (effects (font (size 1.27 1.27)))) (number "5" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 7.62 0 180) (length 3.81) (name "Pin_6" (effects (font (size 1.27 1.27)))) (number "6" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at -5.08 -2.54 0) (length 3.81) (name "Pin_7" (effects (font (size 1.27 1.27)))) (number "7" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 7.62 -2.54 180) (length 3.81) (name "Pin_8" (effects (font (size 1.27 1.27)))) (number "8" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at -5.08 -5.08 0) (length 3.81) (name "Pin_9" (effects (font (size 1.27 1.27)))) (number "9" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 7.62 -5.08 180) (length 3.81) (name "Pin_10" (effects (font (size 1.27 1.27)))) (number "10" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; Diode Schottky
+    (symbol "Device:D_Schottky"
+      (pin_names (offset 1.016) hide)
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "D" (at 0 2.54 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "D_Schottky" (at 0 -2.54 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "D_Schottky_0_1"
+        (polyline (pts (xy -1.27 1.27) (xy -1.27 -1.27) (xy 1.27 0) (xy -1.27 1.27)) (stroke (width 0.254) (type default)) (fill (type none)))
+        (polyline (pts (xy 1.27 1.27) (xy 1.27 -1.27) (xy 1.778 -1.27) (xy 1.778 -1.016)) (stroke (width 0.254) (type default)) (fill (type none)))
+        (polyline (pts (xy 1.27 -1.27) (xy 0.762 -1.27) (xy 0.762 -1.016)) (stroke (width 0.254) (type default)) (fill (type none)))
+      )
+      (symbol "D_Schottky_1_1"
+        (pin passive line (at -3.81 0 0) (length 2.54) (name "K" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 3.81 0 180) (length 2.54) (name "A" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; LED
+    (symbol "Device:LED"
+      (pin_names (offset 1.016) hide)
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "D" (at 0 2.54 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "LED" (at 0 -2.54 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "LED_0_1"
+        (polyline (pts (xy -1.27 1.27) (xy -1.27 -1.27) (xy 1.27 0) (xy -1.27 1.27)) (stroke (width 0.254) (type default)) (fill (type none)))
+        (polyline (pts (xy 1.27 1.27) (xy 1.27 -1.27)) (stroke (width 0.254) (type default)) (fill (type none)))
+        (polyline (pts (xy 0 1.27) (xy 1.27 2.54)) (stroke (width 0) (type default)) (fill (type none)))
+        (polyline (pts (xy 0.508 1.778) (xy 1.778 3.048)) (stroke (width 0) (type default)) (fill (type none)))
+      )
+      (symbol "LED_1_1"
+        (pin passive line (at -3.81 0 0) (length 2.54) (name "K" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 3.81 0 180) (length 2.54) (name "A" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; Resistor
+    (symbol "Device:R"
+      (pin_names (offset 0))
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "R" (at 2.032 0 90) (effects (font (size 1.27 1.27))))
+      (property "Value" "R" (at 0 0 90) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at -1.778 0 90) (effects (font (size 1.27 1.27)) hide))
+      (symbol "R_0_1"
+        (rectangle (start -1.016 2.54) (end 1.016 -2.54) (stroke (width 0.254) (type default)) (fill (type none)))
+      )
+      (symbol "R_1_1"
+        (pin passive line (at 0 3.81 270) (length 1.27) (name "~" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 0 -3.81 90) (length 1.27) (name "~" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; Capacitor
+    (symbol "Device:C"
+      (pin_names (offset 0.254))
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "C" (at 0.635 2.54 0) (effects (font (size 1.27 1.27)) (justify left)))
+      (property "Value" "C" (at 0.635 -2.54 0) (effects (font (size 1.27 1.27)) (justify left)))
+      (property "Footprint" "" (at 0.9652 -3.81 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "C_0_1"
+        (polyline (pts (xy -2.032 -0.762) (xy 2.032 -0.762)) (stroke (width 0.508) (type default)) (fill (type none)))
+        (polyline (pts (xy -2.032 0.762) (xy 2.032 0.762)) (stroke (width 0.508) (type default)) (fill (type none)))
+      )
+      (symbol "C_1_1"
+        (pin passive line (at 0 3.81 270) (length 2.794) (name "~" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 0 -3.81 90) (length 2.794) (name "~" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; AMS1117 LDO
+    (symbol "Regulator_Linear:AMS1117-3.3"
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "U" (at 0 5.08 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "AMS1117-3.3" (at 0 2.54 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "Package_TO_SOT_SMD:SOT-223-3_TabPin2" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "AMS1117-3.3_0_1"
+        (rectangle (start -5.08 1.27) (end 5.08 -5.08) (stroke (width 0.254) (type default)) (fill (type background)))
+      )
+      (symbol "AMS1117-3.3_1_1"
+        (pin power_in line (at 0 -7.62 90) (length 2.54) (name "GND" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin power_out line (at 7.62 0 180) (length 2.54) (name "VO" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at -7.62 0 0) (length 2.54) (name "VI" (effects (font (size 1.27 1.27)))) (number "3" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; 74LVC1G17 Schmitt Trigger
+    (symbol "74xx:74LVC1G17"
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "U" (at 0 5.08 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "74LVC1G17" (at 0 -5.08 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "Package_TO_SOT_SMD:SOT-23-5" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "74LVC1G17_0_1"
+        (polyline (pts (xy -3.81 3.81) (xy -3.81 -3.81) (xy 3.81 0) (xy -3.81 3.81)) (stroke (width 0.254) (type default)) (fill (type background)))
+        (polyline (pts (xy -2.54 -1.27) (xy -1.27 -1.27) (xy -1.27 1.27) (xy 0 1.27) (xy 0 -1.27) (xy 1.27 -1.27)) (stroke (width 0.254) (type default)) (fill (type none)))
+      )
+      (symbol "74LVC1G17_1_1"
+        (pin input line (at -7.62 0 0) (length 3.81) (name "A" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at 0 -7.62 90) (length 5.08) (name "GND" (effects (font (size 1.27 1.27)))) (number "3" (effects (font (size 1.27 1.27)))))
+        (pin output line (at 7.62 0 180) (length 3.81) (name "Y" (effects (font (size 1.27 1.27)))) (number "4" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at 0 7.62 270) (length 5.08) (name "VCC" (effects (font (size 1.27 1.27)))) (number "5" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; MCP6001 Op-Amp
+    (symbol "Amplifier_Operational:MCP6001-OT"
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "U" (at 0 5.08 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "MCP6001" (at 0 -5.08 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "Package_TO_SOT_SMD:SOT-23-5" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "MCP6001-OT_0_1"
+        (polyline (pts (xy -5.08 5.08) (xy -5.08 -5.08) (xy 5.08 0) (xy -5.08 5.08)) (stroke (width 0.254) (type default)) (fill (type background)))
+        (polyline (pts (xy -3.81 -2.54) (xy -2.54 -2.54)) (stroke (width 0.254) (type default)) (fill (type none)))
+        (polyline (pts (xy -3.81 2.54) (xy -2.54 2.54)) (stroke (width 0.254) (type default)) (fill (type none)))
+        (polyline (pts (xy -3.175 2.54) (xy -3.175 1.27)) (stroke (width 0.254) (type default)) (fill (type none)))
+      )
+      (symbol "MCP6001-OT_1_1"
+        (pin output line (at 7.62 0 180) (length 2.54) (name "~" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at -2.54 -7.62 90) (length 3.81) (name "V-" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+        (pin input line (at -7.62 2.54 0) (length 2.54) (name "+" (effects (font (size 1.27 1.27)))) (number "3" (effects (font (size 1.27 1.27)))))
+        (pin input line (at -7.62 -2.54 0) (length 2.54) (name "-" (effects (font (size 1.27 1.27)))) (number "4" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at -2.54 7.62 270) (length 3.81) (name "V+" (effects (font (size 1.27 1.27)))) (number "5" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; Audio Jack
+    (symbol "Connector:AudioJack2"
+      (pin_names (offset 1.016) hide)
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "J" (at 0 8.89 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "AudioJack2" (at 0 6.35 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "AudioJack2_0_1"
+        (rectangle (start -3.81 5.08) (end 3.81 -2.54) (stroke (width 0.254) (type default)) (fill (type background)))
+        (polyline (pts (xy 0 0) (xy 1.27 -1.27) (xy 2.54 0)) (stroke (width 0.254) (type default)) (fill (type none)))
+        (polyline (pts (xy 0 2.54) (xy 2.54 2.54)) (stroke (width 0.254) (type default)) (fill (type none)))
+      )
+      (symbol "AudioJack2_1_1"
+        (pin passive line (at 0 -5.08 90) (length 2.54) (name "~" (effects (font (size 1.27 1.27)))) (number "S" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 6.35 2.54 180) (length 2.54) (name "~" (effects (font (size 1.27 1.27)))) (number "T" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; Tactile Switch
+    (symbol "Switch:SW_Push"
+      (pin_names (offset 1.016) hide)
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "SW" (at 1.27 6.35 0) (effects (font (size 1.27 1.27)) (justify left)))
+      (property "Value" "SW_Push" (at 0 -1.524 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 5.08 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "SW_Push_0_1"
+        (circle (center -2.032 0) (radius 0.508) (stroke (width 0) (type default)) (fill (type none)))
+        (polyline (pts (xy 0 1.27) (xy 0 3.048)) (stroke (width 0) (type default)) (fill (type none)))
+        (polyline (pts (xy -2.54 1.27) (xy 2.54 1.27)) (stroke (width 0) (type default)) (fill (type none)))
+        (circle (center 2.032 0) (radius 0.508) (stroke (width 0) (type default)) (fill (type none)))
+        (pin passive line (at -5.08 0 0) (length 2.54) (name "1" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at 5.08 0 180) (length 2.54) (name "2" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; 1x4 Connector for OLED
+    (symbol "Connector_Generic:Conn_01x04"
+      (pin_names (offset 1.016) hide)
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "J" (at 0 5.08 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "Conn_01x04" (at 0 -7.62 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "Conn_01x04_1_1"
+        (rectangle (start -1.27 3.81) (end 1.27 -6.35) (stroke (width 0.254) (type default)) (fill (type background)))
+        (pin passive line (at -5.08 2.54 0) (length 3.81) (name "Pin_1" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at -5.08 0 0) (length 3.81) (name "Pin_2" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at -5.08 -2.54 0) (length 3.81) (name "Pin_3" (effects (font (size 1.27 1.27)))) (number "3" (effects (font (size 1.27 1.27)))))
+        (pin passive line (at -5.08 -5.08 0) (length 3.81) (name "Pin_4" (effects (font (size 1.27 1.27)))) (number "4" (effects (font (size 1.27 1.27)))))
+      )
+    )
+
+    ;; RP2040-Zero from our library
+    (symbol "SN-L00:RP2040-Zero"
+      (pin_names (offset 1.016))
+      (exclude_from_sim no)
+      (in_bom yes)
+      (on_board yes)
+      (property "Reference" "MOD" (at 0 16.51 0) (effects (font (size 1.27 1.27))))
+      (property "Value" "RP2040-Zero" (at 0 -16.51 0) (effects (font (size 1.27 1.27))))
+      (property "Footprint" "SN-L00:RP2040-Zero" (at 0 0 0) (effects (font (size 1.27 1.27)) hide))
+      (symbol "RP2040-Zero_0_1"
+        (rectangle (start -10.16 15.24) (end 10.16 -15.24) (stroke (width 0.254) (type default)) (fill (type background)))
+      )
+      (symbol "RP2040-Zero_1_1"
+        (pin power_in line (at -12.7 12.7 0) (length 2.54) (name "5V" (effects (font (size 1.27 1.27)))) (number "1" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at -12.7 10.16 0) (length 2.54) (name "GND" (effects (font (size 1.27 1.27)))) (number "2" (effects (font (size 1.27 1.27)))))
+        (pin power_out line (at -12.7 7.62 0) (length 2.54) (name "3V3" (effects (font (size 1.27 1.27)))) (number "3" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at -12.7 5.08 0) (length 2.54) (name "GP29" (effects (font (size 1.27 1.27)))) (number "4" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at -12.7 2.54 0) (length 2.54) (name "GP28" (effects (font (size 1.27 1.27)))) (number "5" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at -12.7 0 0) (length 2.54) (name "GP27" (effects (font (size 1.27 1.27)))) (number "6" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at -12.7 -2.54 0) (length 2.54) (name "GP26" (effects (font (size 1.27 1.27)))) (number "7" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at -12.7 -5.08 0) (length 2.54) (name "GP15" (effects (font (size 1.27 1.27)))) (number "8" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at -12.7 -7.62 0) (length 2.54) (name "GP14" (effects (font (size 1.27 1.27)))) (number "9" (effects (font (size 1.27 1.27)))))
+        (pin power_out line (at 12.7 12.7 180) (length 2.54) (name "3V3" (effects (font (size 1.27 1.27)))) (number "10" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at 12.7 10.16 180) (length 2.54) (name "GND" (effects (font (size 1.27 1.27)))) (number "11" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at 12.7 7.62 180) (length 2.54) (name "GP0" (effects (font (size 1.27 1.27)))) (number "12" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at 12.7 5.08 180) (length 2.54) (name "GP1" (effects (font (size 1.27 1.27)))) (number "13" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at 12.7 2.54 180) (length 2.54) (name "GP2" (effects (font (size 1.27 1.27)))) (number "14" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at 12.7 0 180) (length 2.54) (name "GP3" (effects (font (size 1.27 1.27)))) (number "15" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at 12.7 -2.54 180) (length 2.54) (name "GP4" (effects (font (size 1.27 1.27)))) (number "16" (effects (font (size 1.27 1.27)))))
+        (pin bidirectional line (at 12.7 -5.08 180) (length 2.54) (name "GP5" (effects (font (size 1.27 1.27)))) (number "17" (effects (font (size 1.27 1.27)))))
+        (pin power_in line (at 12.7 -7.62 180) (length 2.54) (name "GND" (effects (font (size 1.27 1.27)))) (number "18" (effects (font (size 1.27 1.27)))))
+      )
+    )
+  )
+
+  ;; ==================== POWER SECTION ====================
+
+  ;; +12V Power symbol
   (symbol
     (lib_id "power:+12V")
-    (at 25.4 25.4 0)
+    (at 30.48 35.56 0)
     (unit 1)
     (exclude_from_sim no)
-    (in_bom yes)
+    (in_bom no)
     (on_board yes)
-    (uuid "pwr-12v-1")
-    (property "Reference" "#PWR01" (at 25.4 29.21 0) (effects (font (size 1.27 1.27)) hide))
-    (property "Value" "+12V" (at 25.4 22.86 0) (effects (font (size 1.27 1.27))))
-  )
-
-  (symbol
-    (lib_id "power:GND")
-    (at 25.4 76.2 0)
-    (unit 1)
-    (exclude_from_sim no)
-    (in_bom yes)
-    (on_board yes)
-    (uuid "pwr-gnd-1")
-    (property "Reference" "#PWR02" (at 25.4 82.55 0) (effects (font (size 1.27 1.27)) hide))
-    (property "Value" "GND" (at 25.4 80.01 0) (effects (font (size 1.27 1.27))))
-  )
-
-  (symbol
-    (lib_id "power:+3.3V")
-    (at 63.5 25.4 0)
-    (unit 1)
-    (exclude_from_sim no)
-    (in_bom yes)
-    (on_board yes)
-    (uuid "pwr-3v3-1")
-    (property "Reference" "#PWR03" (at 63.5 29.21 0) (effects (font (size 1.27 1.27)) hide))
-    (property "Value" "+3.3V" (at 63.5 22.86 0) (effects (font (size 1.27 1.27))))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000001")
+    (property "Reference" "#PWR01" (at 30.48 39.37 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "+12V" (at 30.48 31.75 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000011"))
   )
 
   ;; Eurorack Power Header J1
   (symbol
     (lib_id "Connector_Generic:Conn_02x05_Odd_Even")
-    (at 25.4 50.8 0)
+    (at 43.18 48.26 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "j1-euro-pwr")
-    (property "Reference" "J1" (at 25.4 40.64 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "Eurorack_Power" (at 25.4 60.96 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical" (at 25.4 50.8 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C429954" (at 25.4 50.8 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000002")
+    (property "Reference" "J1" (at 44.45 38.1 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "Eurorack_2x5" (at 44.45 58.42 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical" (at 43.18 48.26 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C429954" (at 43.18 48.26 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000021"))
+    (pin "2" (uuid "00000001-0001-0001-0001-000000000022"))
+    (pin "3" (uuid "00000001-0001-0001-0001-000000000023"))
+    (pin "4" (uuid "00000001-0001-0001-0001-000000000024"))
+    (pin "5" (uuid "00000001-0001-0001-0001-000000000025"))
+    (pin "6" (uuid "00000001-0001-0001-0001-000000000026"))
+    (pin "7" (uuid "00000001-0001-0001-0001-000000000027"))
+    (pin "8" (uuid "00000001-0001-0001-0001-000000000028"))
+    (pin "9" (uuid "00000001-0001-0001-0001-000000000029"))
+    (pin "10" (uuid "00000001-0001-0001-0001-00000000002a"))
   )
 
-  ;; Schottky Diode D1 - Reverse polarity protection
+  ;; Schottky Diode D1
   (symbol
     (lib_id "Device:D_Schottky")
-    (at 38.1 30.48 0)
+    (at 66.04 35.56 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "d1-schottky")
-    (property "Reference" "D1" (at 38.1 27.94 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "SS14" (at 38.1 33.02 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Diode_SMD:D_SMA" (at 38.1 30.48 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C2480" (at 38.1 30.48 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000003")
+    (property "Reference" "D1" (at 66.04 30.48 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "SS14" (at 66.04 33.02 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Diode_SMD:D_SMA" (at 66.04 35.56 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C2480" (at 66.04 35.56 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000031"))
+    (pin "2" (uuid "00000001-0001-0001-0001-000000000032"))
   )
 
-  ;; LDO Regulator U1
+  ;; LDO U1
   (symbol
     (lib_id "Regulator_Linear:AMS1117-3.3")
-    (at 50.8 30.48 0)
+    (at 88.9 35.56 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "u1-ldo")
-    (property "Reference" "U1" (at 50.8 22.86 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "AMS1117-3.3" (at 50.8 25.4 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Package_TO_SOT_SMD:SOT-223-3_TabPin2" (at 50.8 30.48 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C6186" (at 50.8 30.48 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000004")
+    (property "Reference" "U1" (at 88.9 26.67 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "AMS1117-3.3" (at 88.9 29.21 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Package_TO_SOT_SMD:SOT-223-3_TabPin2" (at 88.9 35.56 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C6186" (at 88.9 35.56 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000041"))
+    (pin "2" (uuid "00000001-0001-0001-0001-000000000042"))
+    (pin "3" (uuid "00000001-0001-0001-0001-000000000043"))
   )
 
-  ;; Input capacitors
+  ;; Input cap C1
   (symbol
     (lib_id "Device:C")
-    (at 43.18 38.1 0)
+    (at 76.2 43.18 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "c1-input")
-    (property "Reference" "C1" (at 45.72 36.83 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "10uF" (at 45.72 39.37 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Capacitor_SMD:C_0805_2012Metric" (at 43.18 38.1 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C15850" (at 43.18 38.1 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000005")
+    (property "Reference" "C1" (at 80.01 41.91 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "10uF" (at 80.01 44.45 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Capacitor_SMD:C_0805_2012Metric" (at 76.2 43.18 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C15850" (at 76.2 43.18 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000051"))
+    (pin "2" (uuid "00000001-0001-0001-0001-000000000052"))
   )
 
-  ;; Output capacitors
+  ;; Output cap C2
   (symbol
     (lib_id "Device:C")
-    (at 58.42 38.1 0)
+    (at 101.6 43.18 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "c2-output")
-    (property "Reference" "C2" (at 60.96 36.83 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "10uF" (at 60.96 39.37 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Capacitor_SMD:C_0805_2012Metric" (at 58.42 38.1 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C15850" (at 58.42 38.1 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000006")
+    (property "Reference" "C2" (at 105.41 41.91 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "10uF" (at 105.41 44.45 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Capacitor_SMD:C_0805_2012Metric" (at 101.6 43.18 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C15850" (at 101.6 43.18 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000061"))
+    (pin "2" (uuid "00000001-0001-0001-0001-000000000062"))
   )
 
+  ;; Output cap C3
   (symbol
     (lib_id "Device:C")
-    (at 63.5 38.1 0)
+    (at 109.22 43.18 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "c3-output")
-    (property "Reference" "C3" (at 66.04 36.83 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "100nF" (at 66.04 39.37 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (at 63.5 38.1 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C14663" (at 63.5 38.1 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000007")
+    (property "Reference" "C3" (at 113.03 41.91 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "100nF" (at 113.03 44.45 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (at 109.22 43.18 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C14663" (at 109.22 43.18 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000071"))
+    (pin "2" (uuid "00000001-0001-0001-0001-000000000072"))
   )
 
-  ;; RP2040-Zero Module MOD1
+  ;; GND symbols
   (symbol
-    (lib_id "Connector_Generic:Conn_01x09")
-    (at 101.6 50.8 0)
+    (lib_id "power:GND")
+    (at 88.9 53.34 0)
     (unit 1)
     (exclude_from_sim no)
-    (in_bom yes)
+    (in_bom no)
     (on_board yes)
-    (uuid "mod1-rp2040-left")
-    (property "Reference" "MOD1A" (at 101.6 35.56 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "RP2040-Zero_Left" (at 101.6 68.58 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical" (at 101.6 50.8 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000008")
+    (property "Reference" "#PWR02" (at 88.9 59.69 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 88.9 57.15 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000081"))
   )
 
+  ;; +3.3V output
   (symbol
-    (lib_id "Connector_Generic:Conn_01x09")
-    (at 116.84 50.8 180)
+    (lib_id "power:+3.3V")
+    (at 116.84 35.56 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0001-000000000009")
+    (property "Reference" "#PWR03" (at 116.84 39.37 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "+3.3V" (at 116.84 31.75 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0001-000000000091"))
+  )
+
+  ;; ==================== MCU SECTION ====================
+
+  ;; RP2040-Zero MOD1
+  (symbol
+    (lib_id "SN-L00:RP2040-Zero")
+    (at 172.72 88.9 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "mod1-rp2040-right")
-    (property "Reference" "MOD1B" (at 116.84 35.56 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "RP2040-Zero_Right" (at 116.84 68.58 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical" (at 116.84 50.8 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0002-000000000001")
+    (property "Reference" "MOD1" (at 172.72 69.85 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "RP2040-Zero" (at 172.72 107.95 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "SN-L00:RP2040-Zero" (at 172.72 88.9 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0002-000000000011"))
+    (pin "2" (uuid "00000001-0001-0001-0002-000000000012"))
+    (pin "3" (uuid "00000001-0001-0001-0002-000000000013"))
+    (pin "4" (uuid "00000001-0001-0001-0002-000000000014"))
+    (pin "5" (uuid "00000001-0001-0001-0002-000000000015"))
+    (pin "6" (uuid "00000001-0001-0001-0002-000000000016"))
+    (pin "7" (uuid "00000001-0001-0001-0002-000000000017"))
+    (pin "8" (uuid "00000001-0001-0001-0002-000000000018"))
+    (pin "9" (uuid "00000001-0001-0001-0002-000000000019"))
+    (pin "10" (uuid "00000001-0001-0001-0002-00000000001a"))
+    (pin "11" (uuid "00000001-0001-0001-0002-00000000001b"))
+    (pin "12" (uuid "00000001-0001-0001-0002-00000000001c"))
+    (pin "13" (uuid "00000001-0001-0001-0002-00000000001d"))
+    (pin "14" (uuid "00000001-0001-0001-0002-00000000001e"))
+    (pin "15" (uuid "00000001-0001-0001-0002-00000000001f"))
+    (pin "16" (uuid "00000001-0001-0001-0002-000000000020"))
+    (pin "17" (uuid "00000001-0001-0001-0002-000000000021"))
+    (pin "18" (uuid "00000001-0001-0001-0002-000000000022"))
   )
 
-  ;; OLED Module MOD2
+  ;; OLED MOD2
   (symbol
     (lib_id "Connector_Generic:Conn_01x04")
-    (at 139.7 50.8 0)
+    (at 228.6 83.82 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "mod2-oled")
-    (property "Reference" "MOD2" (at 139.7 43.18 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "OLED_SSD1306" (at 139.7 60.96 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (at 139.7 50.8 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0002-000000000002")
+    (property "Reference" "MOD2" (at 228.6 73.66 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "OLED_128x32" (at 228.6 93.98 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "SN-L00:OLED_128x32_I2C" (at 228.6 83.82 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0002-000000000031"))
+    (pin "2" (uuid "00000001-0001-0001-0002-000000000032"))
+    (pin "3" (uuid "00000001-0001-0001-0002-000000000033"))
+    (pin "4" (uuid "00000001-0001-0001-0002-000000000034"))
   )
 
-  ;; 74LVC1G17 Schmitt Trigger Buffer U2
+  ;; ==================== TRIGGER OUTPUT SECTION ====================
+
+  ;; U2 74LVC1G17
   (symbol
-    (lib_id "74xx_IEEE:74LVC1G17")
-    (at 152.4 101.6 0)
+    (lib_id "74xx:74LVC1G17")
+    (at 53.34 127 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "u2-schmitt")
-    (property "Reference" "U2" (at 152.4 93.98 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "74LVC1G17" (at 152.4 96.52 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Package_TO_SOT_SMD:SOT-23-5" (at 152.4 101.6 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C388628" (at 152.4 101.6 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0003-000000000001")
+    (property "Reference" "U2" (at 53.34 116.84 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "74LVC1G17" (at 53.34 119.38 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Package_TO_SOT_SMD:SOT-23-5" (at 53.34 127 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C388628" (at 53.34 127 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "2" (uuid "00000001-0001-0001-0003-000000000011"))
+    (pin "3" (uuid "00000001-0001-0001-0003-000000000012"))
+    (pin "4" (uuid "00000001-0001-0001-0003-000000000013"))
+    (pin "5" (uuid "00000001-0001-0001-0003-000000000014"))
   )
 
-  ;; MCP6001 Op-Amp U3
+  ;; R3 output resistor
+  (symbol
+    (lib_id "Device:R")
+    (at 73.66 127 90)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0003-000000000002")
+    (property "Reference" "R3" (at 73.66 121.92 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "100R" (at 73.66 124.46 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 73.66 127 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C22775" (at 73.66 127 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0003-000000000021"))
+    (pin "2" (uuid "00000001-0001-0001-0003-000000000022"))
+  )
+
+  ;; J2 Trigger output jack
+  (symbol
+    (lib_id "Connector:AudioJack2")
+    (at 93.98 127 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0003-000000000003")
+    (property "Reference" "J2" (at 93.98 116.84 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "TRIG_OUT" (at 93.98 119.38 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles" (at 93.98 127 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C2935955" (at 93.98 127 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "S" (uuid "00000001-0001-0001-0003-000000000031"))
+    (pin "T" (uuid "00000001-0001-0001-0003-000000000032"))
+  )
+
+  ;; C4 decoupling
+  (symbol
+    (lib_id "Device:C")
+    (at 43.18 119.38 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0003-000000000004")
+    (property "Reference" "C4" (at 46.99 118.11 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "100nF" (at 46.99 120.65 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (at 43.18 119.38 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C14663" (at 43.18 119.38 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0003-000000000041"))
+    (pin "2" (uuid "00000001-0001-0001-0003-000000000042"))
+  )
+
+  ;; ==================== RETURN INPUT SECTION ====================
+
+  ;; J3 Return input jack
+  (symbol
+    (lib_id "Connector:AudioJack2")
+    (at 53.34 167.64 180)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000001")
+    (property "Reference" "J3" (at 53.34 157.48 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "RETURN_IN" (at 53.34 160.02 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles" (at 53.34 167.64 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C2935955" (at 53.34 167.64 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "S" (uuid "00000001-0001-0001-0004-000000000011"))
+    (pin "T" (uuid "00000001-0001-0001-0004-000000000012"))
+  )
+
+  ;; R4 input protection
+  (symbol
+    (lib_id "Device:R")
+    (at 68.58 165.1 90)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000002")
+    (property "Reference" "R4" (at 68.58 160.02 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "10K" (at 68.58 162.56 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 68.58 165.1 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C25804" (at 68.58 165.1 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0004-000000000021"))
+    (pin "2" (uuid "00000001-0001-0001-0004-000000000022"))
+  )
+
+  ;; R5 voltage divider top
+  (symbol
+    (lib_id "Device:R")
+    (at 81.28 157.48 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000003")
+    (property "Reference" "R5" (at 85.09 156.21 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "10K" (at 85.09 158.75 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 81.28 157.48 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C25804" (at 81.28 157.48 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0004-000000000031"))
+    (pin "2" (uuid "00000001-0001-0001-0004-000000000032"))
+  )
+
+  ;; R6 voltage divider bottom
+  (symbol
+    (lib_id "Device:R")
+    (at 81.28 175.26 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000004")
+    (property "Reference" "R6" (at 85.09 173.99 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "22K" (at 85.09 176.53 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 81.28 175.26 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C25774" (at 81.28 175.26 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0004-000000000041"))
+    (pin "2" (uuid "00000001-0001-0001-0004-000000000042"))
+  )
+
+  ;; D3 clamp high
+  (symbol
+    (lib_id "Device:D_Schottky")
+    (at 88.9 149.86 90)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000005")
+    (property "Reference" "D3" (at 93.98 148.59 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "BAT54" (at 93.98 151.13 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Diode_SMD:D_SOD-323" (at 88.9 149.86 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C181104" (at 88.9 149.86 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0004-000000000051"))
+    (pin "2" (uuid "00000001-0001-0001-0004-000000000052"))
+  )
+
+  ;; D4 clamp low
+  (symbol
+    (lib_id "Device:D_Schottky")
+    (at 88.9 182.88 90)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom yes)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000006")
+    (property "Reference" "D4" (at 93.98 181.61 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "BAT54" (at 93.98 184.15 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Diode_SMD:D_SOD-323" (at 88.9 182.88 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C181104" (at 88.9 182.88 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0004-000000000061"))
+    (pin "2" (uuid "00000001-0001-0001-0004-000000000062"))
+  )
+
+  ;; U3 MCP6001 Op-Amp
   (symbol
     (lib_id "Amplifier_Operational:MCP6001-OT")
-    (at 152.4 139.7 0)
+    (at 111.76 165.1 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "u3-opamp")
-    (property "Reference" "U3" (at 152.4 129.54 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "MCP6001" (at 152.4 132.08 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Package_TO_SOT_SMD:SOT-23-5" (at 152.4 139.7 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C93025" (at 152.4 139.7 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000007")
+    (property "Reference" "U3" (at 111.76 154.94 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "MCP6001" (at 111.76 157.48 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Package_TO_SOT_SMD:SOT-23-5" (at 111.76 165.1 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C93025" (at 111.76 165.1 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0004-000000000071"))
+    (pin "2" (uuid "00000001-0001-0001-0004-000000000072"))
+    (pin "3" (uuid "00000001-0001-0001-0004-000000000073"))
+    (pin "4" (uuid "00000001-0001-0001-0004-000000000074"))
+    (pin "5" (uuid "00000001-0001-0001-0004-000000000075"))
   )
 
-  ;; Trigger Output Jack J2
+  ;; C5 decoupling for U3
   (symbol
-    (lib_id "Connector:AudioJack2_Ground_Switch")
-    (at 177.8 101.6 0)
+    (lib_id "Device:C")
+    (at 99.06 157.48 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "j2-trig-out")
-    (property "Reference" "J2" (at 177.8 93.98 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "TRIG_OUT" (at 177.8 109.22 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles" (at 177.8 101.6 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C2935955" (at 177.8 101.6 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0004-000000000008")
+    (property "Reference" "C5" (at 102.87 156.21 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "100nF" (at 102.87 158.75 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (at 99.06 157.48 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C14663" (at 99.06 157.48 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0004-000000000081"))
+    (pin "2" (uuid "00000001-0001-0001-0004-000000000082"))
   )
 
-  ;; Return Input Jack J3
-  (symbol
-    (lib_id "Connector:AudioJack2_Ground_Switch")
-    (at 177.8 139.7 0)
-    (unit 1)
-    (exclude_from_sim no)
-    (in_bom yes)
-    (on_board yes)
-    (uuid "j3-return-in")
-    (property "Reference" "J3" (at 177.8 132.08 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "RETURN_IN" (at 177.8 147.32 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles" (at 177.8 139.7 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C2935955" (at 177.8 139.7 0) (effects (font (size 1.27 1.27)) hide))
-  )
+  ;; ==================== BUTTON SECTION ====================
 
-  ;; Tactile Button SW1
+  ;; SW1 Button
   (symbol
     (lib_id "Switch:SW_Push")
-    (at 101.6 101.6 0)
+    (at 53.34 208.28 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "sw1-button")
-    (property "Reference" "SW1" (at 101.6 93.98 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "BTN" (at 101.6 96.52 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm" (at 101.6 101.6 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C127509" (at 101.6 101.6 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0005-000000000001")
+    (property "Reference" "SW1" (at 53.34 200.66 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "BTN" (at 53.34 203.2 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm" (at 53.34 203.2 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C127509" (at 53.34 208.28 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0005-000000000011"))
+    (pin "2" (uuid "00000001-0001-0001-0005-000000000012"))
   )
 
-  ;; Pull-up resistor for button
+  ;; R1 pull-up
   (symbol
     (lib_id "Device:R")
-    (at 88.9 93.98 0)
+    (at 40.64 198.12 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "r1-pullup")
-    (property "Reference" "R1" (at 91.44 92.71 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "10K" (at 91.44 95.25 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 88.9 93.98 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C25804" (at 88.9 93.98 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0005-000000000002")
+    (property "Reference" "R1" (at 44.45 196.85 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "10K" (at 44.45 199.39 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 40.64 198.12 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C25804" (at 40.64 198.12 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0005-000000000021"))
+    (pin "2" (uuid "00000001-0001-0001-0005-000000000022"))
   )
 
-  ;; Power LED D2
+  ;; ==================== POWER LED SECTION ====================
+
+  ;; D2 Power LED
   (symbol
     (lib_id "Device:LED")
-    (at 76.2 55.88 90)
+    (at 134.62 48.26 270)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "d2-led")
-    (property "Reference" "D2" (at 80.01 54.61 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "PWR_LED" (at 80.01 57.15 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "LED_SMD:LED_0603_1608Metric" (at 76.2 55.88 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C72043" (at 76.2 55.88 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0006-000000000001")
+    (property "Reference" "D2" (at 139.7 46.99 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "Green" (at 139.7 49.53 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "LED_SMD:LED_0603_1608Metric" (at 134.62 48.26 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C72043" (at 134.62 48.26 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0006-000000000011"))
+    (pin "2" (uuid "00000001-0001-0001-0006-000000000012"))
   )
 
-  ;; LED current limiting resistor
+  ;; R2 LED resistor
   (symbol
     (lib_id "Device:R")
-    (at 76.2 45.72 0)
+    (at 134.62 38.1 0)
     (unit 1)
     (exclude_from_sim no)
     (in_bom yes)
     (on_board yes)
-    (uuid "r2-led")
-    (property "Reference" "R2" (at 78.74 44.45 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "1K" (at 78.74 46.99 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 76.2 45.72 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C21190" (at 76.2 45.72 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0006-000000000002")
+    (property "Reference" "R2" (at 138.43 36.83 0) (effects (font (size 1.27 1.27))))
+    (property "Value" "1K" (at 138.43 39.37 0) (effects (font (size 1.27 1.27))))
+    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 134.62 38.1 0) (effects (font (size 1.27 1.27)) hide))
+    (property "LCSC" "C21190" (at 134.62 38.1 0) (effects (font (size 1.27 1.27)) hide))
+    (pin "1" (uuid "00000001-0001-0001-0006-000000000021"))
+    (pin "2" (uuid "00000001-0001-0001-0006-000000000022"))
   )
 
-  ;; Series resistor for trigger output
-  (symbol
-    (lib_id "Device:R")
-    (at 165.1 101.6 90)
-    (unit 1)
-    (exclude_from_sim no)
-    (in_bom yes)
-    (on_board yes)
-    (uuid "r3-trig")
-    (property "Reference" "R3" (at 165.1 99.06 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "100R" (at 165.1 104.14 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 165.1 101.6 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C22775" (at 165.1 101.6 0) (effects (font (size 1.27 1.27)) hide))
+  ;; ==================== WIRES ====================
+
+  ;; Power section wires
+  (wire (pts (xy 30.48 35.56) (xy 38.1 35.56)) (stroke (width 0) (type default)) (uuid "w001"))
+  (wire (pts (xy 38.1 35.56) (xy 38.1 45.72)) (stroke (width 0) (type default)) (uuid "w002"))
+  (wire (pts (xy 38.1 45.72) (xy 38.1 48.26)) (stroke (width 0) (type default)) (uuid "w003"))
+  (wire (pts (xy 50.8 45.72) (xy 50.8 35.56)) (stroke (width 0) (type default)) (uuid "w004"))
+  (wire (pts (xy 50.8 35.56) (xy 62.23 35.56)) (stroke (width 0) (type default)) (uuid "w005"))
+  (wire (pts (xy 69.85 35.56) (xy 76.2 35.56)) (stroke (width 0) (type default)) (uuid "w006"))
+  (wire (pts (xy 76.2 35.56) (xy 76.2 39.37)) (stroke (width 0) (type default)) (uuid "w007"))
+  (wire (pts (xy 76.2 35.56) (xy 81.28 35.56)) (stroke (width 0) (type default)) (uuid "w008"))
+  (wire (pts (xy 96.52 35.56) (xy 101.6 35.56)) (stroke (width 0) (type default)) (uuid "w009"))
+  (wire (pts (xy 101.6 35.56) (xy 101.6 39.37)) (stroke (width 0) (type default)) (uuid "w010"))
+  (wire (pts (xy 101.6 35.56) (xy 109.22 35.56)) (stroke (width 0) (type default)) (uuid "w011"))
+  (wire (pts (xy 109.22 35.56) (xy 109.22 39.37)) (stroke (width 0) (type default)) (uuid "w012"))
+  (wire (pts (xy 109.22 35.56) (xy 116.84 35.56)) (stroke (width 0) (type default)) (uuid "w013"))
+  (wire (pts (xy 76.2 46.99) (xy 76.2 50.8)) (stroke (width 0) (type default)) (uuid "w014"))
+  (wire (pts (xy 76.2 50.8) (xy 88.9 50.8)) (stroke (width 0) (type default)) (uuid "w015"))
+  (wire (pts (xy 88.9 50.8) (xy 88.9 43.18)) (stroke (width 0) (type default)) (uuid "w016"))
+  (wire (pts (xy 88.9 50.8) (xy 88.9 53.34)) (stroke (width 0) (type default)) (uuid "w017"))
+  (wire (pts (xy 101.6 46.99) (xy 101.6 50.8)) (stroke (width 0) (type default)) (uuid "w018"))
+  (wire (pts (xy 101.6 50.8) (xy 88.9 50.8)) (stroke (width 0) (type default)) (uuid "w019"))
+  (wire (pts (xy 109.22 46.99) (xy 109.22 50.8)) (stroke (width 0) (type default)) (uuid "w020"))
+  (wire (pts (xy 109.22 50.8) (xy 101.6 50.8)) (stroke (width 0) (type default)) (uuid "w021"))
+
+  ;; Power LED wires
+  (wire (pts (xy 116.84 35.56) (xy 134.62 35.56)) (stroke (width 0) (type default)) (uuid "w022"))
+  (wire (pts (xy 134.62 35.56) (xy 134.62 34.29)) (stroke (width 0) (type default)) (uuid "w023"))
+  (wire (pts (xy 134.62 41.91) (xy 134.62 44.45)) (stroke (width 0) (type default)) (uuid "w024"))
+  (wire (pts (xy 134.62 52.07) (xy 134.62 55.88)) (stroke (width 0) (type default)) (uuid "w025"))
+
+  ;; MCU power wires
+  (wire (pts (xy 160.02 76.2) (xy 152.4 76.2)) (stroke (width 0) (type default)) (uuid "w030"))
+  (wire (pts (xy 160.02 78.74) (xy 152.4 78.74)) (stroke (width 0) (type default)) (uuid "w031"))
+  (wire (pts (xy 185.42 76.2) (xy 193.04 76.2)) (stroke (width 0) (type default)) (uuid "w032"))
+  (wire (pts (xy 185.42 78.74) (xy 193.04 78.74)) (stroke (width 0) (type default)) (uuid "w033"))
+
+  ;; I2C wires to OLED
+  (wire (pts (xy 185.42 81.28) (xy 200.66 81.28)) (stroke (width 0) (type default)) (uuid "w040"))
+  (wire (pts (xy 200.66 81.28) (xy 200.66 86.36)) (stroke (width 0) (type default)) (uuid "w041"))
+  (wire (pts (xy 200.66 86.36) (xy 223.52 86.36)) (stroke (width 0) (type default)) (uuid "w042"))
+  (wire (pts (xy 185.42 83.82) (xy 205.74 83.82)) (stroke (width 0) (type default)) (uuid "w043"))
+  (wire (pts (xy 205.74 83.82) (xy 205.74 88.9)) (stroke (width 0) (type default)) (uuid "w044"))
+  (wire (pts (xy 205.74 88.9) (xy 223.52 88.9)) (stroke (width 0) (type default)) (uuid "w045"))
+
+  ;; Trigger output wires
+  (wire (pts (xy 185.42 86.36) (xy 195.58 86.36)) (stroke (width 0) (type default)) (uuid "w050"))
+  (wire (pts (xy 60.96 127) (xy 69.85 127)) (stroke (width 0) (type default)) (uuid "w052"))
+  (wire (pts (xy 77.47 127) (xy 87.63 127)) (stroke (width 0) (type default)) (uuid "w053"))
+
+  ;; Return input wires
+  (wire (pts (xy 185.42 88.9) (xy 195.58 88.9)) (stroke (width 0) (type default)) (uuid "w060"))
+  (wire (pts (xy 59.69 165.1) (xy 64.77 165.1)) (stroke (width 0) (type default)) (uuid "w061"))
+  (wire (pts (xy 72.39 165.1) (xy 81.28 165.1)) (stroke (width 0) (type default)) (uuid "w062"))
+  (wire (pts (xy 81.28 161.29) (xy 81.28 165.1)) (stroke (width 0) (type default)) (uuid "w063"))
+  (wire (pts (xy 81.28 165.1) (xy 81.28 171.45)) (stroke (width 0) (type default)) (uuid "w064"))
+  (wire (pts (xy 81.28 165.1) (xy 88.9 165.1)) (stroke (width 0) (type default)) (uuid "w065"))
+  (wire (pts (xy 88.9 153.67) (xy 88.9 165.1)) (stroke (width 0) (type default)) (uuid "w066"))
+  (wire (pts (xy 88.9 165.1) (xy 88.9 179.07)) (stroke (width 0) (type default)) (uuid "w067"))
+  (wire (pts (xy 88.9 165.1) (xy 96.52 165.1)) (stroke (width 0) (type default)) (uuid "w068"))
+  (wire (pts (xy 96.52 165.1) (xy 96.52 167.64)) (stroke (width 0) (type default)) (uuid "w069"))
+  (wire (pts (xy 96.52 167.64) (xy 104.14 167.64)) (stroke (width 0) (type default)) (uuid "w070"))
+  (wire (pts (xy 119.38 165.1) (xy 132.08 165.1)) (stroke (width 0) (type default)) (uuid "w071"))
+  (wire (pts (xy 104.14 162.56) (xy 96.52 162.56)) (stroke (width 0) (type default)) (uuid "w072"))
+  (wire (pts (xy 96.52 162.56) (xy 96.52 165.1)) (stroke (width 0) (type default)) (uuid "w073"))
+
+  ;; Button wires
+  (wire (pts (xy 185.42 91.44) (xy 195.58 91.44)) (stroke (width 0) (type default)) (uuid "w080"))
+  (wire (pts (xy 40.64 201.93) (xy 40.64 208.28)) (stroke (width 0) (type default)) (uuid "w081"))
+  (wire (pts (xy 40.64 208.28) (xy 48.26 208.28)) (stroke (width 0) (type default)) (uuid "w082"))
+  (wire (pts (xy 58.42 208.28) (xy 66.04 208.28)) (stroke (width 0) (type default)) (uuid "w083"))
+
+  ;; ==================== LABELS ====================
+
+  (label "SDA"
+    (at 200.66 81.28 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid "l001")
+  )
+  (label "SCL"
+    (at 205.74 83.82 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid "l002")
+  )
+  (label "TRIG_OUT"
+    (at 195.58 86.36 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid "l003")
+  )
+  (label "RETURN_IN"
+    (at 195.58 88.9 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid "l004")
+  )
+  (label "BTN"
+    (at 195.58 91.44 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid "l005")
+  )
+  (label "TRIG_OUT"
+    (at 35.56 127 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid "l006")
+  )
+  (label "RETURN_IN"
+    (at 132.08 165.1 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid "l007")
+  )
+  (label "BTN"
+    (at 40.64 208.28 180)
+    (effects (font (size 1.27 1.27)) (justify right bottom))
+    (uuid "l008")
   )
 
-  ;; Input protection resistor
-  (symbol
-    (lib_id "Device:R")
-    (at 127 139.7 90)
-    (unit 1)
-    (exclude_from_sim no)
-    (in_bom yes)
-    (on_board yes)
-    (uuid "r4-input")
-    (property "Reference" "R4" (at 127 137.16 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "10K" (at 127 142.24 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 127 139.7 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C25804" (at 127 139.7 0) (effects (font (size 1.27 1.27)) hide))
-  )
+  ;; ==================== POWER FLAGS ====================
 
-  ;; Voltage divider resistors for input (5V to 3.3V)
   (symbol
-    (lib_id "Device:R")
-    (at 134.62 132.08 0)
+    (lib_id "power:GND")
+    (at 38.1 55.88 0)
     (unit 1)
     (exclude_from_sim no)
-    (in_bom yes)
+    (in_bom no)
     (on_board yes)
-    (uuid "r5-divider-top")
-    (property "Reference" "R5" (at 137.16 130.81 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "10K" (at 137.16 133.35 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 134.62 132.08 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C25804" (at 134.62 132.08 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000001")
+    (property "Reference" "#PWR04" (at 38.1 62.23 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 38.1 59.69 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000011"))
   )
 
   (symbol
-    (lib_id "Device:R")
-    (at 134.62 149.86 0)
+    (lib_id "power:GND")
+    (at 134.62 55.88 0)
     (unit 1)
     (exclude_from_sim no)
-    (in_bom yes)
+    (in_bom no)
     (on_board yes)
-    (uuid "r6-divider-bot")
-    (property "Reference" "R6" (at 137.16 148.59 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "22K" (at 137.16 151.13 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Resistor_SMD:R_0603_1608Metric" (at 134.62 149.86 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C25774" (at 134.62 149.86 0) (effects (font (size 1.27 1.27)) hide))
-  )
-
-  ;; Input protection diodes
-  (symbol
-    (lib_id "Device:D_Schottky")
-    (at 139.7 124.46 90)
-    (unit 1)
-    (exclude_from_sim no)
-    (in_bom yes)
-    (on_board yes)
-    (uuid "d3-clamp-high")
-    (property "Reference" "D3" (at 143.51 123.19 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "BAT54" (at 143.51 125.73 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Diode_SMD:D_SOD-323" (at 139.7 124.46 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C181104" (at 139.7 124.46 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000002")
+    (property "Reference" "#PWR05" (at 134.62 62.23 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 134.62 59.69 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000021"))
   )
 
   (symbol
-    (lib_id "Device:D_Schottky")
-    (at 139.7 157.48 90)
+    (lib_id "power:GND")
+    (at 53.34 137.16 0)
     (unit 1)
     (exclude_from_sim no)
-    (in_bom yes)
+    (in_bom no)
     (on_board yes)
-    (uuid "d4-clamp-low")
-    (property "Reference" "D4" (at 143.51 156.21 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "BAT54" (at 143.51 158.75 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Diode_SMD:D_SOD-323" (at 139.7 157.48 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C181104" (at 139.7 157.48 0) (effects (font (size 1.27 1.27)) hide))
-  )
-
-  ;; Decoupling caps for ICs
-  (symbol
-    (lib_id "Device:C")
-    (at 152.4 88.9 0)
-    (unit 1)
-    (exclude_from_sim no)
-    (in_bom yes)
-    (on_board yes)
-    (uuid "c4-u2-decoup")
-    (property "Reference" "C4" (at 154.94 87.63 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "100nF" (at 154.94 90.17 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (at 152.4 88.9 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C14663" (at 152.4 88.9 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000003")
+    (property "Reference" "#PWR06" (at 53.34 143.51 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 53.34 140.97 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000031"))
   )
 
   (symbol
-    (lib_id "Device:C")
-    (at 152.4 152.4 0)
+    (lib_id "power:+3.3V")
+    (at 53.34 114.3 0)
     (unit 1)
     (exclude_from_sim no)
-    (in_bom yes)
+    (in_bom no)
     (on_board yes)
-    (uuid "c5-u3-decoup")
-    (property "Reference" "C5" (at 154.94 151.13 0) (effects (font (size 1.27 1.27))))
-    (property "Value" "100nF" (at 154.94 153.67 0) (effects (font (size 1.27 1.27))))
-    (property "Footprint" "Capacitor_SMD:C_0603_1608Metric" (at 152.4 152.4 0) (effects (font (size 1.27 1.27)) hide))
-    (property "LCSC" "C14663" (at 152.4 152.4 0) (effects (font (size 1.27 1.27)) hide))
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000004")
+    (property "Reference" "#PWR07" (at 53.34 118.11 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "+3.3V" (at 53.34 110.49 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000041"))
   )
 
+  (symbol
+    (lib_id "power:GND")
+    (at 93.98 134.62 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000005")
+    (property "Reference" "#PWR08" (at 93.98 140.97 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 93.98 138.43 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000051"))
+  )
+
+  (symbol
+    (lib_id "power:GND")
+    (at 53.34 175.26 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000006")
+    (property "Reference" "#PWR09" (at 53.34 181.61 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 53.34 179.07 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000061"))
+  )
+
+  (symbol
+    (lib_id "power:+3.3V")
+    (at 81.28 149.86 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000007")
+    (property "Reference" "#PWR10" (at 81.28 153.67 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "+3.3V" (at 81.28 146.05 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000071"))
+  )
+
+  (symbol
+    (lib_id "power:GND")
+    (at 81.28 182.88 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000008")
+    (property "Reference" "#PWR11" (at 81.28 189.23 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 81.28 186.69 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000081"))
+  )
+
+  (symbol
+    (lib_id "power:+3.3V")
+    (at 88.9 142.24 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000009")
+    (property "Reference" "#PWR12" (at 88.9 146.05 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "+3.3V" (at 88.9 138.43 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-000000000091"))
+  )
+
+  (symbol
+    (lib_id "power:GND")
+    (at 88.9 190.5 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000010")
+    (property "Reference" "#PWR13" (at 88.9 196.85 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 88.9 194.31 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-0000000000a1"))
+  )
+
+  (symbol
+    (lib_id "power:+3.3V")
+    (at 40.64 190.5 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000011")
+    (property "Reference" "#PWR14" (at 40.64 194.31 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "+3.3V" (at 40.64 186.69 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-0000000000b1"))
+  )
+
+  (symbol
+    (lib_id "power:GND")
+    (at 66.04 213.36 0)
+    (unit 1)
+    (exclude_from_sim no)
+    (in_bom no)
+    (on_board yes)
+    (dnp no)
+    (uuid "00000001-0001-0001-0007-000000000012")
+    (property "Reference" "#PWR15" (at 66.04 219.71 0) (effects (font (size 1.27 1.27)) hide))
+    (property "Value" "GND" (at 66.04 217.17 0) (effects (font (size 1.27 1.27))))
+    (pin "1" (uuid "00000001-0001-0001-0007-0000000000c1"))
+  )
+
+  ;; More wires for power connections
+  (wire (pts (xy 40.64 190.5) (xy 40.64 194.31)) (stroke (width 0) (type default)) (uuid "w090"))
+  (wire (pts (xy 66.04 208.28) (xy 66.04 213.36)) (stroke (width 0) (type default)) (uuid "w091"))
+  (wire (pts (xy 53.34 134.62) (xy 53.34 137.16)) (stroke (width 0) (type default)) (uuid "w092"))
+  (wire (pts (xy 53.34 114.3) (xy 53.34 119.38)) (stroke (width 0) (type default)) (uuid "w093"))
+  (wire (pts (xy 43.18 115.57) (xy 43.18 119.38)) (stroke (width 0) (type default)) (uuid "w094"))
+  (wire (pts (xy 43.18 123.19) (xy 43.18 127)) (stroke (width 0) (type default)) (uuid "w095"))
+  (wire (pts (xy 43.18 127) (xy 43.18 134.62)) (stroke (width 0) (type default)) (uuid "w096"))
+  (wire (pts (xy 43.18 134.62) (xy 53.34 134.62)) (stroke (width 0) (type default)) (uuid "w097"))
+  (wire (pts (xy 53.34 119.38) (xy 43.18 119.38)) (stroke (width 0) (type default)) (uuid "w098"))
+  (wire (pts (xy 43.18 119.38) (xy 43.18 115.57)) (stroke (width 0) (type default)) (uuid "w099"))
+  (wire (pts (xy 93.98 132.08) (xy 93.98 134.62)) (stroke (width 0) (type default)) (uuid "w100"))
+  (wire (pts (xy 53.34 172.72) (xy 53.34 175.26)) (stroke (width 0) (type default)) (uuid "w101"))
+  (wire (pts (xy 81.28 149.86) (xy 81.28 153.67)) (stroke (width 0) (type default)) (uuid "w102"))
+  (wire (pts (xy 81.28 179.07) (xy 81.28 182.88)) (stroke (width 0) (type default)) (uuid "w103"))
+  (wire (pts (xy 88.9 142.24) (xy 88.9 146.05)) (stroke (width 0) (type default)) (uuid "w104"))
+  (wire (pts (xy 88.9 186.69) (xy 88.9 190.5)) (stroke (width 0) (type default)) (uuid "w105"))
+
+  ;; More GND connections for J1
+  (wire (pts (xy 38.1 48.26) (xy 38.1 50.8)) (stroke (width 0) (type default)) (uuid "w110"))
+  (wire (pts (xy 38.1 50.8) (xy 38.1 53.34)) (stroke (width 0) (type default)) (uuid "w111"))
+  (wire (pts (xy 38.1 53.34) (xy 38.1 55.88)) (stroke (width 0) (type default)) (uuid "w112"))
+
+  ;; Eurorack power header connections
+  (wire (pts (xy 50.8 48.26) (xy 50.8 50.8)) (stroke (width 0) (type default)) (uuid "w120"))
+  (wire (pts (xy 50.8 50.8) (xy 50.8 53.34)) (stroke (width 0) (type default)) (uuid "w121"))
+  (wire (pts (xy 50.8 53.34) (xy 38.1 53.34)) (stroke (width 0) (type default)) (uuid "w122"))
+
   ;; Text annotations
-  (text "POWER SECTION" (at 40.64 15.24 0) (effects (font (size 2.54 2.54))))
-  (text "MCU & DISPLAY" (at 114.3 25.4 0) (effects (font (size 2.54 2.54))))
-  (text "TRIGGER OUTPUT" (at 152.4 78.74 0) (effects (font (size 2.54 2.54))))
-  (text "RETURN INPUT" (at 152.4 116.84 0) (effects (font (size 2.54 2.54))))
-  (text "BUTTON" (at 101.6 78.74 0) (effects (font (size 2.54 2.54))))
-
-  ;; Net labels
-  (label "TRIG_OUT_MCU" (at 134.62 101.6 0) (effects (font (size 1.27 1.27))))
-  (label "RETURN_IN_MCU" (at 170.18 139.7 180) (effects (font (size 1.27 1.27))))
-  (label "BTN" (at 109.22 101.6 0) (effects (font (size 1.27 1.27))))
-  (label "SDA" (at 132.08 48.26 0) (effects (font (size 1.27 1.27))))
-  (label "SCL" (at 132.08 50.8 0) (effects (font (size 1.27 1.27))))
+  (text "POWER SECTION" (at 73.66 22.86 0) (effects (font (size 2.54 2.54))))
+  (text "MCU & DISPLAY" (at 172.72 63.5 0) (effects (font (size 2.54 2.54))))
+  (text "TRIGGER OUTPUT" (at 63.5 109.22 0) (effects (font (size 2.54 2.54))))
+  (text "RETURN INPUT" (at 73.66 142.24 0) (effects (font (size 2.54 2.54))))
+  (text "BUTTON" (at 48.26 185.42 0) (effects (font (size 2.54 2.54))))
+  (text "Eurorack Power:\nPin 1,3,5,7,9 = -12V (not used)\nPin 2,4,6,8,10 = GND\nPin 9,10 = +12V"
+    (at 22.86 63.5 0) (effects (font (size 1.27 1.27)) (justify left)))
 
 )