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DIY Arduino Based Weather Station Circuit

Last updated on 17 November 2025 by Admin-Lavi Leave a Comment

This DIY Arduino Based Weather Station Circuit is very easy project. It uses Arduino Uno, DHT11 sensor, 16×2 LCD and one potentiometer. The LCD show temperature and humidity on screen. The potentiometer controls LCD contrast and brightness. The wiring is simple and the code are also very easy. Anyone can build circuit this at home. […]

Filed Under: Arduino Projects, Heater and Temperature Controllers, Sensors and Detectors

Christmas Music Box Circuit using IC UM66

Last updated on 15 November 2025 by Admin-Lavi Leave a Comment

This is fun project for small Christmas Music Box Circuit using IC UM66. UM66 chip already has melody inside. When power ON, it plays Christmas notes. It is good for greeting cards, toys and mini gifts. Circuit Working: Parts List: Part Name Value Quantity Resistor 4.7k 1/4 watt 1 Capacitor Electrolytic 1uF 25V 1 Semiconductors […]

Filed Under: Audio Circuits

Jingle Bell Song Circuit with Arduino and Piezo Buzzer

Last updated on 15 November 2025 by Admin-Lavi Leave a Comment

Christmas time feels more fun when music plays. This project plays the Jingle Bells tune using Arduino Uno. With Arduino and small buzzer, we can make Jingle Bells tune at home. Very easy circuit and with very happy sound. Good project for beginners and kids. Arduino Coding: Code Explanation: Circuit Working: Parts List: Item Quantity […]

Filed Under: Arduino Projects, Audio Circuits, LED and Lamps

Arduino Bluetooth Appliance Controller Circuit

Last updated on 14 November 2025 by Admin-Lavi Leave a Comment

This project shows how to control a home appliance with Arduino. Bluetooth module HC05 sends command from mobile. Relay switches the AC load like bulb or fan. Arduino Bluetooth Appliance Controller Circuit is simple and safe when wired correctly. Good for beginners who want home automation. Arduino Coding: Code Explanation: Circuit Working: Parts List: Item […]

Filed Under: Arduino Projects, IoT projects

Arduino Line Follower Robot Circuit

Last updated on 14 November 2025 by Admin-Lavi Leave a Comment

Arduino Line Follower Robot Circuit uses sensors and motors. IR sensors look at floor all time. They find black line and white area. Arduino read these sensor signals. Then it tell motor driver what to do. Motor driver control wheels speed and direction. Robot follow black line by itself. Arduino Coding: Code Explanation: Circuit Diagram: […]

Filed Under: Arduino Projects, Sensors and Detectors

Simple PIR Motion Detector Circuit

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

This circuit uses a PIR sensor to detect human motion. When motion happens, PIR output goes high. This high signal turns ON an LED through a resistor. Simple PIR Motion Detector Circuit is easy to make and works with 12V supply. Circuit Working: Parts List: Part Name Value Quantity Resistors 220Ω 1/4 watt 1 Semiconductors […]

Filed Under: Sensors and Detectors

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