55 lines
1.0 KiB
C++
55 lines
1.0 KiB
C++
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#include "pico/stdlib.h"
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#include "inventor.hpp"
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/*
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Displays a rotating rainbow pattern on Inventor 2040 W's onboard LED bars.
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Press "User" to exit the program.
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*/
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using namespace inventor;
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// The speed that the LEDs will cycle at
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const uint SPEED = 5;
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// The brightness of the LEDs
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constexpr float BRIGHTNESS = 0.4f;
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// How many times the LEDs will be updated per second
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const uint UPDATES = 50;
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// Create a new Inventor2040W
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Inventor2040W board;
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int main() {
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stdio_init_all();
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// Attempt to initialise the board
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if(board.init()) {
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float offset = 0.0f;
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// Make rainbows until the user button is pressed
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while(!board.switch_pressed()) {
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offset += (float)SPEED / 1000.0f;
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// Update all the LEDs
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for(auto i = 0u; i < NUM_LEDS; i++) {
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float hue = (float)i / (float)NUM_LEDS;
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board.leds.set_hsv(i, hue + offset, 1.0f, BRIGHTNESS);
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}
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sleep_ms(1000 / UPDATES);
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}
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// Turn off the LED bars
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board.leds.clear();
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// Sleep a short time so the clear takes effect
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sleep_ms(100);
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}
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}
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