Arduino – NeoPixel – Brightness & Color Select
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// 가변저항으로 밝기와 수량을 제어 // 가변저항을 돌리면 // 단계별로 하나씩 밝아진다 // 스위치로 빨, 초, 파, 흰 선택 #include <Adafruit_NeoPixel.h> #ifdef __AVR__ #include <avr/power.h> // Required for 16 MHz Adafruit Trinket #endif #define LED_PIN 2 #define LED_COUNT 3 Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800); int statesLed1=0; int statesLed2=0; int statesLed3=0; #define button1 4 #define button2 5 #define val1 A1 unsigned long cnt=0; int values=0; int statesColor=0; // 0 : R, 1 : G, 2 : B, 3 : W int ledR=1; int ledG=0; int ledB=0; void setup() { #if defined(__AVR_ATtiny85__) && (F_CPU == 16000000) clock_prescale_set(clock_div_1); #endif strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED) strip.show(); // Turn OFF all pixels ASAP strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255) pinMode(button1, INPUT); pinMode(button2, INPUT); Serial.begin(9600); } void loop() { values=map(analogRead(val1), 0, 1023, 0, 1024*3/4); statesLed1=constrain(values, 0, 255); statesLed2=constrain(values-256, 0, 255); statesLed3=constrain(values-512, 0, 255); if (digitalRead(button1)==HIGH && cnt==0) { statesColor++; cnt=millis(); if (statesColor > 3) { statesColor=0; } } else if (digitalRead(button2)==HIGH && cnt==0) { statesColor--; cnt=millis(); if (statesColor < 0) { statesColor=3; } } else if (millis() > cnt+200) { cnt=0; } switch (statesColor) { case 0: ledR=1; ledG=0; ledB=0; break; case 1: ledR=0; ledG=1; ledB=0; break; case 2: ledR=0; ledG=0; ledB=1; break; case 3: ledR=1; ledG=1; ledB=1; break; } strip.setPixelColor(0, strip.Color(statesLed1*ledR, statesLed1*ledG, statesLed1*ledB)); strip.setPixelColor(1, strip.Color(statesLed2*ledR, statesLed2*ledG, statesLed2*ledB)); strip.setPixelColor(2, strip.Color(statesLed3*ledR, statesLed3*ledG, statesLed3*ledB)); strip.show(); Serial.print("ledR : "); Serial.print(ledR); Serial.print(", ledG : "); Serial.print(ledG); Serial.print(", ledB : "); Serial.print(ledB); Serial.print(", statesLed1 : "); Serial.print(statesLed1); Serial.print(", statesLed2 : "); Serial.print(statesLed2); Serial.print(", statesLed3 : "); Serial.print(statesLed3); Serial.println(); } |