Simple RGB Dimmer

RGB strings always have some disbalance in colors, so we never have pure white light. That's why we need adjustable dimmer with memory, for set nedeed light temperature for photo or work.<div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/DLVcica8aGI" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div>Code/*LED's with common anodeBUTTONENT=Select GreenBUTTONUP=Select BlueBUTTONDOWN=Select RedOn enter selected color light for 1 secUp/Down = +/- brightness selected colorEnter again save settings and light off for 0.5sec*/#include <EEPROM.h>const int BLED = 3; //output for blue led, also address for coincident PWM valueconst int GLED = 5; //output for green led, also address for coincident PWM valueconst int RLED=6; //output for red led, also address for coincident PWM valueconst int BUTTONENT=7;const int BUTTONUP=8;const int BUTTONDOWN=2;byte PWMB;byte PWMG;byte PWMR;void setup()// { pinMode(BLED, OUTPUT); pinMode(GLED, OUTPUT); pinMode(RLED, OUTPUT); pinMode(BUTTONENT, INPUT_PULLUP); pinMode(BUTTONDOWN, INPUT_PULLUP); pinMode(BUTTONUP, INPUT_PULLUP); PWMB = EEPROM.read(BLED); PWMG = EEPROM.read(GLED); PWMR = EEPROM.read(RLED); analogWrite(BLED, PWMB); analogWrite(RLED, PWMR); analogWrite(GLED, PWMG);}void adjust (int color) //function for adjusment{ analogWrite(BLED, PWMB); analogWrite(RLED, PWMR); analogWrite(GLED, PWMG); if (color==BLED) { while (digitalRead(BUTTONENT)==HIGH) { if (digitalRead(BUTTONUP)==LOW) { analogWrite(BLED, PWMB=PWMB-10); EEPROM.write(BLED, PWMB); delay(300); } if (digitalRead(BUTTONDOWN)==LOW) { analogWrite(BLED, PWMB=PWMB+10); EEPROM.write(BLED, PWMB); delay(300); } } } if (color==GLED) { while (digitalRead(BUTTONENT)==HIGH) { if (digitalRead(BUTTONUP)==LOW) { analogWrite(GLED, PWMG=PWMG-10); EEPROM.write(GLED, PWMG); delay(300); } if (digitalRead(BUTTONDOWN)==LOW) { analogWrite(GLED, PWMG=PWMG+10); EEPROM.write(GLED, PWMG); delay(300); } } } if (color==RLED) { while (digitalRead(BUTTONENT)==HIGH) { if (digitalRead(BUTTONUP)==LOW) { analogWrite(RLED, PWMR=PWMR-10); EEPROM.write(RLED, PWMR); delay(300); } if (digitalRead(BUTTONDOWN)==LOW) { analogWrite(RLED, PWMR=PWMR+10); EEPROM.write(RLED, PWMR); delay(300); } } } digitalWrite(BLED, HIGH); digitalWrite(GLED, HIGH); digitalWrite(RLED, HIGH); delay (500); analogWrite(BLED, PWMB); analogWrite(RLED, PWMR); analogWrite(GLED, PWMG); return;}void loop() // the loop function runs over and over again forever{ if (digitalRead(BUTTONUP)==LOW) { digitalWrite(BLED, LOW); digitalWrite(GLED, HIGH); digitalWrite(RLED, HIGH); delay (1000); adjust (BLED); } if (digitalRead (BUTTONENT)==LOW) //кнопка enter (средняя) { digitalWrite(BLED, HIGH); digitalWrite(GLED, LOW); digitalWrite(RLED, HIGH); delay (1000); adjust (GLED); } if (digitalRead (BUTTONDOWN)==LOW) { digitalWrite(BLED, HIGH); digitalWrite(GLED, HIGH); digitalWrite(RLED, LOW); delay (1000); adjust (RLED); }}

Simple RGB Dimmer

Explore buttons, LED and EEPROM on Arduino Nano.