87 lines
1.9 KiB
C++
87 lines
1.9 KiB
C++
#include <FastGPIO.h>
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#define APA102_USE_FAST_GPIO
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#include <APA102.h>
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#include "images.h"
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const int HALL_PIN = 2;
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const int ROUND_COUNT = 2;
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// Define which pins to use.
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const uint8_t dataPin = 10;
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const uint8_t clockPin = 11;
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const int num_segments = 360;
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const uint16_t led_count = 28;
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const uint8_t brightness = 1;
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const int state_count = 4;
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rgb_color color_buffer[led_count];
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float passed = 0;
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int current_image_index = 0;
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uint8_t *current_palette;
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uint8_t *current_pixels;
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// Create an object for writing to the LED strip.
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APA102<dataPin, clockPin> ledStrip;
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void setup()
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{
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Serial.begin(115200);
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pinMode(HALL_PIN, INPUT);
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pinMode(LED_BUILTIN, INPUT);
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current_palette = (uint8_t *)pgm_read_word(&images[current_image_index].palette);
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current_pixels = (uint8_t *)pgm_read_word(&images[current_image_index].pixels);
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}
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void loop()
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{
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float start = micros();
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int count = 0;
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bool change = false;
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while (count < ROUND_COUNT)
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{
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// check HALL if turned
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if (digitalRead(HALL_PIN) == LOW)
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{
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digitalWrite(LED_BUILTIN, HIGH);
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if (!change)
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{
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change = true;
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count++;
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}
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}
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else
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{
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digitalWrite(LED_BUILTIN, LOW);
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change = false;
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}
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// calc led for last turn
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float current_diff = micros() - start;
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int state = ((float)passed / current_diff * num_segments);
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uint8_t pixel_color_index;
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uint8_t *current_pixel = (uint8_t *)¤t_pixels[state * led_count];
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for (int i = 0; i < led_count; i++)
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{
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pixel_color_index = pgm_read_byte(current_pixel++) * 3;
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color_buffer[i] = rgb_color(
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pgm_read_byte(¤t_palette[pixel_color_index]),
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pgm_read_byte(¤t_palette[pixel_color_index + 1]),
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pgm_read_byte(¤t_palette[pixel_color_index + 2]));
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}
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ledStrip.write(color_buffer, led_count, brightness);
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}
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passed = (micros() - start);
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}
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