Purpose of this tutorial:
In this tutorial we will automatically vary the light intensity of an RGB LED module with the Arduino.
Necessary Components
- Arduino UNO
- RGB LED module
- connecting wires
Mounting
Connect:
- the digital PIN 0 of Arduino to the pin (R) for the red color of the RGB LED module
- the digital PIN 1 of Arduino to the pin (G) for the green color of the RGB LED module
- the digital PIN 2 of the Arduino to the pin (B) for the blue color of the RGB LED module
- the GND pin of the Arduino to the pin (GND) of the RGB LED module
Program
Here is the program that automatically varies the light intensity of an RGB LED with the Arduino.
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void setup(){ pinMode(0,OUTPUT); //sets the number 0 digital pin of the Arduino in output modepinMode(0,OUTPUT); //sets the number 1 digital pin of the Arduino in output modepinMode(0,OUTPUT); //sets the number 0 digital pin of the Arduino in output mode pinMode(1,OUTPUT); //sets the number 1 digital pin of the Arduino in output modepinMode(1,OUTPUT); //sets the number 1 digital pin of the Arduino in output modepinMode(1,OUTPUT); //sets the number 1 digital pin of the Arduino in output mode pinMode(2,OUTPUT); //sets the number 2 digital pin of the Arduino in output modepinMode(2,OUTPUT); //sets the number 1 digital pin of the Arduino in output modepinMode(2,OUTPUT); //sets the number 2 digital pin of the Arduino in output mode } void loop(){ //the LED module lights up in red and green digitalWrite(0,HIGH); digitalWrite(1,HIGH); digitalWrite(2,LOW); delay(2000); //lthe LED module lights up in red digitalWrite(0,HIGH); digitalWrite(1,LOW); digitalWrite(2,LOW); delay(2000); //the LED module lights up in red and blue digitalWrite(0,LOW); digitalWrite(1,HIGH); digitalWrite(2,LOW); delay(2000); //the LED module lights up in green digitalWrite(0,HIGH); digitalWrite(1,LOW); digitalWrite(2,HIGH); delay(2000); //the LED module lights up in red ,blue and green digitalWrite(0,HIGH); digitalWrite(1,HIGH); digitalWrite(2,HIGH); delay(2000); } |
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