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Working with Light Dependent Resistor (LDR)

This illustrates the working with LDR

BeginnerProtip36,188
Working with Light Dependent Resistor (LDR)

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
USB Cable 2.0 Type A/B for Arduino Uno
DIYables USB Cable 2.0 Type A/B for Arduino Uno
×1
DIYables STEM V3 Board, Compatible with Arduino Uno R3
DIYables STEM V3 Board, Compatible with Arduino Uno R3
DIYables STEM V3 works as the Arduino Uno R3.
×1
DIYables STEM V4 IoT
DIYables STEM V4 IoT
DIYables STEM V4 IoT works as the Arduino Uno R4 WiFi.
×1
LDR Light Sensor, Photoresistor, Photocell
DIYables LDR Light Sensor, Photoresistor, Photocell
×1
Resistor
DIYables Resistor
×1
Jumper Wires
DIYables Jumper Wires
×1
Breadboard
DIYables Breadboard
×1
Prototype Expansion Board for Arduino Uno
DIYables Prototype Expansion Board for Arduino Uno
Optional
×1
Arduino Uno Case
DIYables Arduino Uno Case
×1
Breadboard Shield for Arduino
DIYables Breadboard Shield for Arduino
×1
Starter Kit
DIYables Starter Kit
Optional
×1
DIYables STEM V3 Starter Kit - Fully Compatible with Arduino Uno R3
DIYables STEM V3 Starter Kit - Fully Compatible with Arduino Uno R3
×1
DIYables STEM V4 IoT Starter Kit - Fully Compatible with Arduino UNO R4 WiFi
DIYables STEM V4 IoT Starter Kit - Fully Compatible with Arduino UNO R4 WiFi
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

Read more

Schematics

Breadboard Diagram

Make connections as shown in the breadboard diagram

Connections

The figure shows the close up of the connections

Code

Code

Arduino
The program prints the value of LDR to Serial Monitor
const int LDR = A0;
int input_val = 0;

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

void loop()
{
  input_val = analogRead(LDR);
  Serial.print("LDR Value is: ");
  Serial.println(input_val);
  delay(1000);
}

Credits

SBR
37 projects • 52 followers
Mechanical Engineer
DIYables
1 project • 91 followers
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