kopia lustrzana https://github.com/pimoroni/pimoroni-pico
66 wiersze
1.6 KiB
C++
66 wiersze
1.6 KiB
C++
#include "pico/stdlib.h"
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
#include "common/pimoroni_common.hpp"
|
|
|
|
#include "breakout_potentiometer.hpp"
|
|
|
|
using namespace pimoroni;
|
|
|
|
I2C i2c(BOARD::BREAKOUT_GARDEN);
|
|
BreakoutPotentiometer pot(&i2c);
|
|
bool toggle = false;
|
|
|
|
// HSV Conversion expects float inputs in the range of 0.00-1.00 for each channel
|
|
// Outputs are rgb in the range 0-255 for each channel
|
|
void from_hsv(float h, float s, float v, uint8_t &r, uint8_t &g, uint8_t &b) {
|
|
float i = floor(h * 6.0f);
|
|
float f = h * 6.0f - i;
|
|
v *= 255.0f;
|
|
uint8_t p = v * (1.0f - s);
|
|
uint8_t q = v * (1.0f - f * s);
|
|
uint8_t t = v * (1.0f - (1.0f - f) * s);
|
|
|
|
switch (int(i) % 6) {
|
|
case 0: r = v; g = t; b = p; break;
|
|
case 1: r = q; g = v; b = p; break;
|
|
case 2: r = p; g = v; b = t; break;
|
|
case 3: r = p; g = q; b = v; break;
|
|
case 4: r = t; g = p; b = v; break;
|
|
case 5: r = v; g = p; b = q; break;
|
|
}
|
|
}
|
|
|
|
int main() {
|
|
gpio_init(PICO_DEFAULT_LED_PIN);
|
|
gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);
|
|
|
|
stdio_init_all();
|
|
|
|
if(pot.init()) {
|
|
printf("Potentiometer found...\n");
|
|
|
|
//pot.set_direction(BreakoutPotentiometer::DIRECTION_CCW); // Uncomment this to flip the direction
|
|
|
|
while(true) {
|
|
gpio_put(PICO_DEFAULT_LED_PIN, toggle);
|
|
toggle = !toggle;
|
|
|
|
float percent = pot.read();
|
|
|
|
printf("Percent: %d\n", (int)(percent * 100));
|
|
uint8_t r = 0, g = 0, b = 0;
|
|
from_hsv(percent, 1.0f, 1.0f, r, g, b);
|
|
pot.set_led(r, g, b);
|
|
|
|
sleep_ms(20);
|
|
}
|
|
}
|
|
else {
|
|
printf("Potentiometer not found :'(\n");
|
|
gpio_put(PICO_DEFAULT_LED_PIN, true);
|
|
}
|
|
|
|
return 0;
|
|
}
|