kopia lustrzana https://github.com/pimoroni/pimoroni-pico
64 wiersze
1.4 KiB
C++
64 wiersze
1.4 KiB
C++
#include <math.h>
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#include "breakout_dotmatrix.hpp"
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#include "time.h"
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using namespace pimoroni;
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I2C i2c(BOARD::BREAKOUT_GARDEN);
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BreakoutDotMatrix display(&i2c);
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bool led_toggle = false;
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void eye(uint8_t x, uint8_t y) {
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display.set_pixel(x, y, true);
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display.set_pixel(x, y + 1, true);
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display.set_pixel(x + 1, y, true);
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display.set_pixel(x + 1, y + 1, true);
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}
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int main() {
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#ifdef PICO_DEFAULT_LED_PIN
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gpio_init(PICO_DEFAULT_LED_PIN);
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gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);
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#endif
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display.init();
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while(true) {
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absolute_time_t at = get_absolute_time();
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uint64_t t = to_us_since_boot(at) / 1000000;
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// Get eye x and y positions in the range 0.0 to 1.0
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// You can plug in your own 0.0 to 1.0 values here
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uint64_t t_pi = t * M_PI;
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float x = (sinf(t_pi / 2) + 1) / 2;
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float y = (sinf(t_pi / 4) + 1) / 2;
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// Multiply them up to display coords and convert to int
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x = floor(x * 3);
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y = floor(y * 5);
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// Clear the display
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display.clear();
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// Blink occasionally
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if(!(rand() % 20 == 2)) {
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// Draw the eyes if not blinking
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eye(x, y);
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eye(x + 5, y);
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}
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// Update the display at 10FPS
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// This gives our crude blink code time to not look like a random flicker
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display.show();
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#ifdef PICO_DEFAULT_LED_PIN
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gpio_put(PICO_DEFAULT_LED_PIN, led_toggle);
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#endif
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led_toggle = !led_toggle;
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sleep_ms(100);
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}
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return 0;
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} |