Tutorial for Arduino Beginners PART II

Using a potentiometer to control an LED light.

Jan 14, 2019

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Components and supplies

5 mm LED: Red

Arduino UNO

Jumper wires (generic)

Breadboard (generic)

Rotary potentiometer (generic)

Tools and machines

Computer

Apps and platforms

Arduino IDE

Project description

Code

LED with Potentiometer

c_cpp

Paste it into the IDE window and hit upload

1int analogPin = A0;
2int analogPin2 = A1;
3                       
4int  val = 0;
5int val2 = 0;           
6
7void setup()
8{
9  Serial.begin(9600);              
10}
11
12void loop()
13{
14  val = analogRead(analogPin);
15  val2 = analogRead(analogPin2);     
16  Serial.println(val);   
17  analogWrite(analogPin2,  val * 0.2)     
18;}

int analogPin = A0;
int analogPin2 = A1;
                       
int  val = 0;
int val2 = 0;           

void setup()
{
  Serial.begin(9600);              
}

void loop()
{
  val = analogRead(analogPin);
  val2 = analogRead(analogPin2);     
  Serial.println(val);   
  analogWrite(analogPin2,  val * 0.2)     
;}

Downloadable files

The Finished Project

All Done

The Finished Project

All Done

The Finished Project

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