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Arduino Projects

Fading LED Circuit using Arduino and Potentiometer

Last updated on 11 December 2025 by Admin-Lavi Leave a Comment

This project shows how to control Fading LED Circuit using Arduino and Potentiometer. Potentiometer gives analog voltage. By rotating the potentiometer knob varies the voltage output and arduino reads this variation. Arduino reads it and changes LED brightness and this LED brightness changes smoothly. It is easy to make a simple project for beginners and […]

Filed Under: Arduino Projects, LED and Lamps

Arduino Battery Charger Circuit

Last updated on 4 December 2025 by Admin-Lavi Leave a Comment

This article show how to make a simple Arduino Battery Charger Circuit. Charger stop and start charging using MOSFET. Arduino read battery temperature with TMP36 sensor and decide safe charging. Circuit is simple and work with basic components. Arduino Coding: Code Explanation: Circuit Working: Parts List: Part Name Specification Qty Resistors 10k ,10Ω 10 watt […]

Filed Under: Arduino Projects, Battery Charger Circuits

Arduino Sine Wave Output Circuit with RC Filter

Last updated on 3 December 2025 by Admin-Lavi Leave a Comment

This project show how to make simple Arduino sine wave circuit with RC filter. Arduino cannot give real analog output, but it only gives PWM signal. So we use low pass RC filter to change PWM into smooth sine wave. Two potentiometer control amplitude and frequency. This circuit is very easy and good for small […]

Filed Under: Arduino Projects, Inverter Circuits

Arduino Chirping Bird Sound Circuit

Last updated on 29 November 2025 by Admin-Lavi Leave a Comment

This small Arduino project make cute bird sound like real chirping. Which make our room feel like forest Only one button press and tiny speaker sing like little bird. Sound is clear and fun, anyone can make in few minutes. Very low cost and with very easy wiring. This Arduino Chirping Bird Sound Circuit is […]

Filed Under: Arduino Projects, Audio Circuits

Arduino Pitch Control Circuit using Potentiometer

Last updated on 29 November 2025 by Admin-Lavi Leave a Comment

This is a small Arduino tone generator project. It uses Arduino Uno, one buzzer, one potentiometer to change the pitch. This Arduino Pitch Control Circuit using Potentiometer is simple and easy to make. It helps beginners understand PWM, analog reading and digital output. We can use this project to learn basic sound making using Arduino. […]

Filed Under: Arduino Projects, Audio Circuits

Laser Light Alarm Circuit using Arduino

Last updated on 27 November 2025 by Admin-Lavi Leave a Comment

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 […]

Filed Under: Alarm Circuits, Arduino Projects, LDR Circuits, Security and Protection

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