51 lines
1.0 KiB
C++
51 lines
1.0 KiB
C++
#include "pico/stdlib.h"
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#include "plasma_stick.hpp"
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#include "common/pimoroni_common.hpp"
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/*
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Make some rainbows!
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*/
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using namespace pimoroni;
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using namespace plasma;
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// Set how many LEDs you have
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const uint NUM_LEDS = 50;
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// The SPEED that the LEDs cycle at (1 - 255)
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const uint SPEED = 20;
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// How many times the LEDs will be updated per second
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const uint UPDATES = 60;
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// Set up the WS2812 / NeoPixel™ LEDs, with RGB color order to work with the LED wire that comes with Skully
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WS2812 led_strip(NUM_LEDS, pio0, 0, plasma_stick::DAT, WS2812::DEFAULT_SERIAL_FREQ, false, WS2812::COLOR_ORDER::RGB);
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int main() {
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stdio_init_all();
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// Start updating the LED strip
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led_strip.start(UPDATES);
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float offset = 0.0f;
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// Make rainbows
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while(true) {
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offset += float(SPEED) / 2000.0f;
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if (offset > 1.0) {
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offset -= 1.0;
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}
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for(auto i = 0u; i < NUM_LEDS; ++i) {
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float hue = float(i) / NUM_LEDS;
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hue += offset;
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hue -= floor(hue);
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led_strip.set_hsv(i, hue, 1.0f, 1.0f);
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}
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sleep_ms(1000 / UPDATES);
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}
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}
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