SN-L00/docs/PROJECT_STATUS.md

SN-L00 Project Status

Last Updated: 2026-01-23

Current State: Ready for Prototype Order

Completed

• Schematic design (KiCad 9)
• PCB layout 8HP (40×100mm)
• Automated routing pipeline (python3 scripts/autoroute.py)
• Panel design aligned with PCB
• M3 standoff mounting system
• Gerber files generated
• Firmware source code

Manufacturing Files

File	Description
hardware/kicad/SN-L00-gerbers.zip	Upload to PCB fab (JLCPCB/PCBWay)
hardware/kicad/gerbers/SN-L00-pos.csv	Pick and place file
hardware/panel/SN-L00_panel.svg	Panel for laser cutting
hardware/BOM.md	Bill of materials with LCSC parts

DRC Status

• 0 unconnected pads ✓
• 6 courtyard overlaps (cosmetic - acceptable)
• 1 edge clearance warning (manufacturable)

Next Steps

1. Order PCBs

   • Upload SN-L00-gerbers.zip to JLCPCB or PCBWay
   • Specs: 2-layer, 40×100mm, 1.6mm, HASL, green/black solder mask
   • Qty: 5-10 for prototyping

2. Order Panel

   • Option A: PCB panel (order as PCB, black soldermask)
   • Option B: Laser cut aluminum (use SVG)
   • Option C: Laser cut acrylic

3. Order Components

   • See hardware/BOM.md for LCSC part numbers
   • Hand-solder: RP2040-Zero module, OLED module

4. Build Firmware

   cd firmware
   mkdir build && cd build
   cmake .. && make
   

   Flash sn_l00.uf2 via USB bootloader

5. Assembly

   • SMD assembly (or hand solder SMD parts)
   • Solder through-hole: jacks, button, headers
   • Mount PCB to panel with M3×10mm standoffs
   • Connect OLED module

6. Testing

   • Power on test (check 3.3V rail)
   • OLED display test
   • Latency measurement validation

Hardware Required for Assembly

Item	Qty	Notes
M3×10mm standoff	4	Hex, male-female
M3×6mm screw	4	Pan head
M3 nut	4	For panel side
RP2040-Zero	1	Waveshare module
OLED 128×32	1	0.91" I2C module

Repository

• Git: https://git.sub-net.at/submodular/SN-L00
• Org: https://git.sub-net.at/submodular

Quick Commands

# Regenerate PCB routing
cd hardware/kicad
python3 scripts/autoroute.py

# Regenerate Gerbers
./scripts/export_gerbers.sh

# Build firmware
cd firmware && mkdir -p build && cd build && cmake .. && make