abfall/src/ws2812.cpp

#include "ws2812.h"

WS2812::WS2812(uint gpio, PIO pio, uint sm) : m_pio{pio}, m_sm{sm} {
    uint offset = pio_add_program(m_pio, &ws2812_program);
    ws2812_program_init(m_pio, m_sm, offset, gpio, 800000, true);
    switchColor(Color::OFF);
}

void WS2812::switchColor(Color color) { putPixel(static_cast<uint32_t>(color)); }

void WS2812::blinkReady() {
    for (int i = 0; i < 2; i++) {
        switchColor(Color::WHITE);
        sleep_ms(250);
        switchColor(Color::OFF);
        sleep_ms(250);
    }
}

void WS2812::putPixel(uint32_t pixel_grb) { pio_sm_put_blocking(m_pio, m_sm, pixel_grb << 8u); }