LED Basics: Dim or Increase brightness with an LED!

Using Arduino UNO, 1 - LED, 1 - potentiometer, 1 - 220 ohm resistor, and 6 male to male jumper wires.

Jul 9, 2022

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basics

led

led basics

Devices & Components

Male/Male Jumper Wires

Resistor 220 ohm

Potentiometer/ Finger Adjust Preset

LED (generic)

Project description

Code

Project Code

arduino

1#define LED_PIN 11
2#define POTENTIOMETER_PIN A1
3void setup()
4{
5  pinMode(LED_PIN, OUTPUT);
6}
7void loop()
8{
9  int potentiometerValue  = analogRead(POTENTIOMETER_PIN);
10  int brightness = potentiometerValue / 4;
11  analogWrite(LED_PIN, brightness);
12}

#define LED_PIN 11
#define POTENTIOMETER_PIN A1
void setup()
{
  pinMode(LED_PIN, OUTPUT);
}
void loop()
{
  int potentiometerValue  = analogRead(POTENTIOMETER_PIN);
  int brightness = potentiometerValue / 4;
  analogWrite(LED_PIN, brightness);
}

Project Code

arduino

1#define LED_PIN 11
2#define POTENTIOMETER_PIN A1
3void setup()
4{
5
6  pinMode(LED_PIN, OUTPUT);
7}
8void loop()
9{
10  int potentiometerValue
11  = analogRead(POTENTIOMETER_PIN);
12  int brightness = potentiometerValue / 4;
13
14  analogWrite(LED_PIN, brightness);
15}

#define LED_PIN 11
#define POTENTIOMETER_PIN A1
void setup()
{

  pinMode(LED_PIN, OUTPUT);
}
void loop()
{
  int potentiometerValue
  = analogRead(POTENTIOMETER_PIN);
  int brightness = potentiometerValue / 4;

  analogWrite(LED_PIN, brightness);
}

Downloadable files

Project Schematics

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