77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include "pico/stdlib.h"
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#include "pico_rgb_keypad.hpp"
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using namespace pimoroni;
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PicoRGBKeypad pico_keypad;
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int main() {
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pico_keypad.init();
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pico_keypad.set_brightness(1.0f);
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uint16_t lit = 0;
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uint16_t last_button_states = 0;
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uint8_t colour_index = 0;
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while(true) {
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// read button states from i2c expander
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uint16_t button_states = pico_keypad.get_button_states();
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if(last_button_states != button_states && button_states) {
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last_button_states = button_states;
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if(button_states) {
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if(lit == 0xffff) {
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// all buttons are already lit, reset the test
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lit = 0;
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colour_index++;
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if(colour_index >= 6) {
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colour_index = 0;
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}
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}else{
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uint8_t button = 0;
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for(uint8_t find = 0; find < pico_keypad.NUM_PADS; find++) {
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// check if this button is pressed and no other buttons are pressed
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if(button_states & 0x01) {
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if(!(button_states & (~0x01))) {
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lit |= 1 << button;
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}
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break;
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}
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button_states >>= 1;
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button++;
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}
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}
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}
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}
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last_button_states = button_states;
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for(uint8_t i = 0; i < PicoRGBKeypad::NUM_PADS; i++) {
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if((lit >> i) & 0x01) {
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switch(colour_index)
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{
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case 0: pico_keypad.illuminate(i, 0x00, 0x20, 0x00); break;
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case 1: pico_keypad.illuminate(i, 0x20, 0x20, 0x00); break;
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case 2: pico_keypad.illuminate(i, 0x20, 0x00, 0x00); break;
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case 3: pico_keypad.illuminate(i, 0x20, 0x00, 0x20); break;
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case 4: pico_keypad.illuminate(i, 0x00, 0x00, 0x20); break;
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case 5: pico_keypad.illuminate(i, 0x00, 0x20, 0x20); break;
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}
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}else{
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pico_keypad.illuminate(i, 0x05, 0x05, 0x05);
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}
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}
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pico_keypad.update();
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sleep_ms(100);
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}
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return 0;
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}
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