Arduino Tutorials and Arduino Projects: Dark / Light Controlled LED with LDR

Learn how to create a dark light controlled LED using an Arduino and LDR sensor in this tutorial. Get ready to dive into the world of electronics and coding with this fun project!
Materials Needed:
Arduino board
LDR (Light Dependent Resistor)
LED
220-ohm resistor
Breadboard and jumper wires
Steps:
1) Setup Your Arduino: Connect your Arduino Uno to your computer using a USB cable.
2) Connect LDR and LED to Arduino: Connect one leg of the LDR to the 5V pin on the Arduino. Connect the other leg of the LDR to Analog Pin 0 (A0) on the Arduino. Connect the cathode (short leg) of the LED to a 220-ohm resistor, then connect the other end of the resistor to pin 3 on the Arduino. Connect the anode (long leg) of the LED to the ground (GND) pin on the Arduino.
3) Write the Arduino Code
4) Upload the Code: Open the Arduino IDE, copy and paste the code into a new sketch, and upload it to your Arduino board.
5) Test the Circuit: Once uploaded, the LED should turn off in darkness and turn on in light, responding to the varying light levels detected by the LDR. Adjust the threshold value (250 in this example) according to your environment if necessary.
This project demonstrates how an LDR can be used with an Arduino to create a simple light-sensitive LED control system, suitable for applications like night lights, automated lighting, or energy-saving devices. Adjust the threshold value (250 in this example) according to your specific light conditions for optimal performance.
Remember to take a look at our channel for more robotic coding content and make sure to subscribe.