kopia lustrzana https://github.com/pimoroni/pimoroni-pico
121 wiersze
3.3 KiB
C++
121 wiersze
3.3 KiB
C++
#include <math.h>
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#include "pico/stdlib.h"
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#include "libraries/pico_graphics/pico_graphics.hpp"
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#include "libraries/interstate75/interstate75.hpp"
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using namespace pimoroni;
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RGBLED led_rgb(Interstate75::LED_R, Interstate75::LED_G, Interstate75::LED_B, Polarity::ACTIVE_LOW);
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Button button_a(Interstate75::A);
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Button button_b(Interstate75::B);
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//If the display looks streaky or corrupted then uncomment one of the other initalisers
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//Works with our 32x32 panels https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=35962488650 https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=19321740999
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Hub75 hub75(32, 32, nullptr, PANEL_GENERIC, false);
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//or using 2 of these panels
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//Hub75 hub75(64, 32, nullptr, PANEL_GENERIC, false);
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//and 64x32 panel https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=42312764298
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//Hub75 hub75(64, 32, nullptr, PANEL_GENERIC, false);
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//or using 2 of these panels
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//Hub75 hub75(128, 32, nullptr, PANEL_GENERIC, false);
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//Works with our 64x64 panel https://shop.pimoroni.com/products/rgb-led-matrix-panel?variant=3029531983882
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//Hub75 hub75(64, 64, nullptr, PANEL_GENERIC, false);
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//or using 2 of these panels
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//Hub75 hub75(128, 64, nullptr, PANEL_GENERIC, false);
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PicoGraphics_PenRGB888 graphics(hub75.width, hub75.height, nullptr);
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// HSV Conversion expects float inputs in the range of 0.00-1.00 for each channel
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// Outputs are rgb in the range 0-255 for each channel
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void from_hsv(float h, float s, float v, uint8_t &r, uint8_t &g, uint8_t &b) {
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float i = floor(h * 6.0f);
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float f = h * 6.0f - i;
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v *= 255.0f;
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uint8_t p = v * (1.0f - s);
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uint8_t q = v * (1.0f - f * s);
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uint8_t t = v * (1.0f - (1.0f - f) * s);
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switch (int(i) % 6) {
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case 0: r = v; g = t; b = p; break;
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case 1: r = q; g = v; b = p; break;
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case 2: r = p; g = v; b = t; break;
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case 3: r = p; g = q; b = v; break;
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case 4: r = t; g = p; b = v; break;
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case 5: r = v; g = p; b = q; break;
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}
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}
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// Interrupt callback required function
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void __isr dma_complete() {
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hub75.dma_complete();
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}
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int main() {
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stdio_init_all();
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uint8_t hue_map[hub75.width][3];
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for(uint i = 0; i < hub75.width; i++) {
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from_hsv(i / (float) hub75.width, 1.0f, 1.0f, hue_map[i][0], hue_map[i][1], hue_map[i][2]);
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}
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hub75.start(dma_complete);
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graphics.set_font("bitmap8");
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float i = 0;
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bool animate = true;
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float stripe_width = 3.0f;
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float speed = 5.0f;
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float curve = 0.0f;
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float led_h = 0.0f;
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while(true) {
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if(animate) {
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i += speed;
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}
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if(button_a.raw()) {
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speed += 0.05f;
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speed = speed >= 10.0f ? 10.0f : speed;
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animate = true;
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}
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if(button_b.raw()) {
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speed -= 0.05f;
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speed = speed <= 0.0f ? 0.0f : speed;
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animate = true;
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}
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for(uint x = 0; x < hub75.width; x++) {
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for(uint y = 0; y < hub75.height; y++) {
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int v = ((sin((x + y) / stripe_width + (sin((y * 3.1415927f * 2.0f) / (float)hub75.width) * curve) + i / 15.0f) + 1.5f) / 2.5f) * 255.0f;
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uint8_t r = (hue_map[x][0] * v) / 256;
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uint8_t g = (hue_map[x][1] * v) / 256;
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uint8_t b = (hue_map[x][2] * v) / 256;
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graphics.set_pen(r, g, b);
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graphics.pixel(Point(x, y));
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}
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}
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hub75.update(&graphics);
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led_rgb.set_hsv(led_h, 1.0f, 1.0f);
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led_h += 0.01;
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sleep_ms(20);
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}
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printf("done\n");
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return 0;
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}
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