This article is for simple Laser Light Alarm Circuit using Arduino. A laser light shines on an LDR. When someone blocks the laser beam, the LDR changes its value. Arduino reads this change and turns ON the buzzer to make alarm sound. A reset button stops the alarm. The system is low cost and easy […]
Arduino Projects
Simple Sound Sensor Circuit with Arduino
This project show how to use sound sensor with Arduino. Sound sensor detect clap or loud voice. When sound come, Arduino turn ON LED and buzzer. This project for Simple Sound Sensor Circuit with Arduino help beginner understand sensor working. Arduino Coding: Code Explanation: Circuit Working: Parts List: Item Quantity Resistors 220Ω 1/4 watt 1 […]
Arduino and Joystick LED Controller Circuit
This project shows how to control many LEDs using one joystick and Arduino. The joystick moves in X and Y direction. Arduino reads this movement and turns ON or OFF the LEDs. This Arduino and Joystick LED Controller Circuit is simple to build. Good for beginners and Arduino lovers. Arduino Coding: Coding Explanation: Circuit Working: […]
Arduino Flex Sensor Circuit
If we want Arduino to feel the movement, flex sensor is best. No click, no sound only smooth bending. It bends and Arduino gets new value every time. Perfect for beginners who want to control things by bending. Simple circuit, simple code, powerful idea. Arduino Coding: Code Explanation: Circuit Working: Parts List: Item Quantity Resistors […]
Simple Push Button Circuit with Arduino
This project show how to make very Simple Push Button Circuit with Arduino. Push button act like an ON and OFF switch. When we press button one time then LED changes its state. First press LED will turn ON. And second press LED will turn OFF. It keeps doing the same. All this happen with […]
KY040 Encoder Module Circuit with Arduino
Rotary encoder is a sensor that tell rotation and direction. It is used in volume knobs, motors, robot wheels and menu selections. Arduino can read the encoder pulses and show value in serial monitor. This project for KY040 Encoder Module Circuit with Arduino is very simple and beginner friendly. Arduino Coding: Coding Explanation: Circuit Working: […]