florian.berthold
64f9e34fc3
Complete working firmware including: - CMakeLists.txt for Pico SDK build - SSD1306 OLED driver (128x32, I2C) - High-resolution latency measurement using hardware timer - Debounced button with short/long press detection - Three modes: Single, Continuous, Stats - USB serial debugging output Includes 8x8 font with numbers and letters for display.
24 lines
459 B
C
24 lines
459 B
C
#ifndef BUTTON_H
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#define BUTTON_H
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#include <stdbool.h>
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#include <stdint.h>
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typedef enum {
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BTN_NONE,
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BTN_SHORT_PRESS, // < 500ms
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BTN_LONG_PRESS // >= 500ms
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} button_event_t;
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// Initialize button GPIO
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void button_init(void);
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// Poll button state (call in main loop)
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// Returns event type when button is released
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button_event_t button_poll(void);
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// Check if button is currently pressed
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bool button_is_pressed(void);
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#endif // BUTTON_H
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