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104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
// Library free version, using HSV --> RGB code not by me
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//#include < FastLED.h >
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int light = 0;
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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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// mapping to correct values
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average += map(analogRead(0), 0, 1023, 0, 127);
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delay(3);
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}
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average /= ss;
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//Serial.println(analogRead(0));
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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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if (abs(oldavg - average) > 1) {
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Serial.print("Goal: ");
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Serial.println(average);
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digitalWrite(13, HIGH);
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while (oldavg < average) {
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oldavg += 2;
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setColor(oldavg);
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}
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while (oldavg > average) {
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oldavg -= 2;
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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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}
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void setColor(int hue) {
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byte RedLight;
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byte GreenLight;
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byte BlueLight;
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// this is the algorithm to convert from RGB to HSV
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byte h = hue;
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byte s = 255;
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byte v = 60;
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h = (h * 192) / 256; // 0..191
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unsigned int i = h / 32; // We want a value of 0 thru 5
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unsigned int f = (h % 32) * 8; // 'fractional' part of 'i' 0..248 in jumps
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unsigned int sInv = 255 - s; // 0 -> 0xff, 0xff -> 0
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unsigned int fInv = 255 - f; // 0 -> 0xff, 0xff -> 0
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byte pv = v * sInv / 256; // pv will be in range 0 - 255
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byte qv = v * (256 - s * f / 256) / 256;
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byte tv = v * (256 - s * fInv / 256) / 256;
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switch (i) {
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case 0:
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RedLight = v;
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GreenLight = tv;
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BlueLight = pv;
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break;
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case 1:
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RedLight = qv;
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GreenLight = v;
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BlueLight = pv;
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break;
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case 2:
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RedLight = pv;
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GreenLight = v;
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BlueLight = tv;
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break;
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case 3:
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RedLight = pv;
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GreenLight = qv;
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BlueLight = v;
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break;
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case 4:
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RedLight = tv;
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GreenLight = pv;
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BlueLight = v;
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break;
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case 5:
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RedLight = v;
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GreenLight = pv;
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BlueLight = qv;
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break;
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}
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//CRGB& color = CHSV(average, 255, 255);
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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(RedLight);
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Serial.print(", ");
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Serial.print(GreenLight);
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Serial.print(", ");
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Serial.println(BlueLight);
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analogWrite(9, RedLight);
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analogWrite(10, GreenLight);
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analogWrite(11, BlueLight);
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}
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