How to adjust brightness of an LED with Arduino

 Potentiometer With Arduino

Components required:-

1.Arduino Uno:-

2.LEDs:-

3.Portentiometer:-

Potentiometer:-A potentiometer is a three-terminal resistor that uses an adjustable voltage divider circuit to create variable resistance.

Potentiometer pinout:-

1. GND PIN- connected to GND pin of Arduino.

2. OUTPUT– it is an output pin : Connect it to A0 pin of  Arduino.

3. VCC PIN-  connected to VCC pin of Arduino.

POTENTIOMETER INTERFACING WITH ARDUINO

• First we have to connect GND pin of Arduino to 1st terminal of potentiometer. 
• Then we have to connect 2nd pin of potentiometer to A0 pin of Arduino. 
• Then connect VCC pin of Arduino to 3rd pin of potentiometer. 
• Then take an LED and connect it's anode terminal to 11th pin of Arduino and cathode pin to GND. 

 Arduino Code

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int value, tempvalue;

void setup() 

{

 pinMode(11,OUTPUT);

 pinMode(A0,INPUT);

}

void loop()

{

  tempvalue=analogRead(A0);

  value=map(tempvalue,0,1023,0,255);

  analogWrite(11,value);

}

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To Understand this project in more detail, then click here or on this image to watch my tutorial