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57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
#include <FastLED.h>
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int light = 0;
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int r = 9; // define pins
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int g = 10;
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int b = 11;
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int oldavg = 0;
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void setup() {
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Serial.begin(9600);
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pinMode(13, OUTPUT);
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}
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void loop() {
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int ss = 20; // sample size for light sensor
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int average = 0;
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for (int x = 0; x < ss; x++) {
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//average += 256-log(256-analogRead(0) / 4) * (256 /5.55); // old linearization
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// linearization using resistance to lux relationship
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average += (1250000.0 * pow(1023 - analogRead(0), -1.4059) - 73) / 2.08;
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delay(3);
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}
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average /= ss;
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//Serial.println(average);
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if (oldavg == 0) {
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oldavg = average;
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}
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digitalWrite(13, HIGH);
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if (oldavg != average) {
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Serial.print("Goal: ");
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Serial.println(average);
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}
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while (oldavg < average) {
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oldavg += 1;
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setColor(oldavg);
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}
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while (oldavg > average) {
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oldavg -= 1;
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setColor(oldavg);
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}
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digitalWrite(13, LOW);
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}
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void setColor(int hue) {
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CRGB color = CHSV(hue, 255, 255);
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analogWrite(9, color.r);
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analogWrite(10, color.g);
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analogWrite(11, color.b);
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Serial.print("Hue: ");
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Serial.print(hue);
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Serial.print(", RGB : ");
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Serial.print(color.r);
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Serial.print(", ");
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Serial.print(color.g);
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Serial.print(", ");
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Serial.println(color.b);
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}
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