Arduino – Neopixel + Variable Resistor + Switch – RGB Select & Set #2
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#include <Adafruit_NeoPixel.h> #define PIN 2 Adafruit_NeoPixel strip=Adafruit_NeoPixel(8, PIN, NEO_GRB + NEO_KHZ800); int varRes=A1; int btnNext=4; int states=0; int colors1=0; int colors2=0; int colors3=0; int vars=0; unsigned long cnt=0; void setup() { strip.begin(); strip.show(); pinMode(btnNext, INPUT); } void loop() { if (cnt==0 && digitalRead(btnNext)) { cnt=millis(); switch (states) { case 1: colors1=vars; break; case 2: colors2=vars; break; case 3: colors3=vars; break; } states++; if (states > 3) { states=0; } for (int i=0;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(0, 0, 0)); } strip.show(); } else if (cnt > 0 && millis() > cnt+500) { cnt=0; } vars=map(analogRead(varRes), 0, 1023, 0, 255); switch (states) { case 0: for (int i=0;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(colors1, colors2, colors3)); } break; case 1: strip.setPixelColor(0, strip.Color(255, 0, 0)); strip.setPixelColor(2, strip.Color(vars, 0, 0)); for (int i=4;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(vars, colors2, colors3)); } break; case 2: strip.setPixelColor(0, strip.Color(0, 255, 0)); strip.setPixelColor(2, strip.Color(0, vars, 0)); for (int i=4;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(colors1, vars, colors3)); } break; case 3: strip.setPixelColor(0, strip.Color(0, 0, 255)); strip.setPixelColor(2, strip.Color(0, 0, 255)); for (int i=4;i<strip.numPixels();i++) { strip.setPixelColor(i, strip.Color(colors1, colors2, vars)); } break; } strip.show(); } |