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Mini Projects

Simple Arduino OLED Display Circuit

Last updated on 1 July 2026 by Admin-Lavi Leave a Comment

Want our Arduino to talk to us on screen? then add a small digital screen to our Arduino in minutes; with just a OLED display, our simple Arduino project suddenly feel like a real gadget. Also, it show clear text with no backlight, low power and with super cool look, here OLED display need only […]

Filed Under: Arduino Projects, LED and Lamps, Mini Projects

555 Timer Astable Multivibrator Circuit

Last updated on 29 June 2026 by Admin-Lavi Leave a Comment

This 555 Timer Astable Multivibrator Circuit is simple and easy; also astable means output never stays stable and output keeps switching high and low again and again. Moreover, the circuit creates square-wave pulses and drives LED blinking, tone generation, clock signals, and many hobby projects. Circuit Working: Parts List: Components Quantity Resistors 1k ohm, 100k […]

Filed Under: 555 Timer Projects, Hobby Circuits, Mini Projects, Timer Circuits

555 Timer Monostable Multivibrator Circuit

Last updated on 29 June 2026 by Admin-Lavi Leave a Comment

This article explain simple 555 Timer Monostable Multivibrator Circuit, as circuit create one single pulse when trigger comes; also time period depend on resistor and capacitor. Circuit is easy to build and can run from 5V to 12V power supply; moreover, many people use it for delay, timer, reset pulse and for buzzer control. Circuit […]

Filed Under: 555 Timer Projects, Mini Projects, Timer Circuits

Christmas Music Box Circuit using IC UM66

Last updated on 29 June 2026 by Admin-Lavi Leave a Comment

This is fun project for small Christmas Music Box Circuit using IC UM66, also this UM66 chip already has melody inside. When power is ON, it plays Christmas notes; moreover, this circuit is good for greeting cards, toys and mini gifts. Circuit Working: Parts List: Components Values Quantity Resistor 4.7k 1/4 watt 1 Capacitor Electrolytic […]

Filed Under: Audio Circuits, Hobby Circuits, Mini Projects

Jingle Bell Song Circuit with Arduino and Piezo Buzzer

Last updated on 29 June 2026 by Admin-Lavi Leave a Comment

Christmas time feels more fun when music plays, as this project plays the Jingle Bells tune using Arduino Uno. With Arduino and small buzzer, we can make Jingle Bells tune at home, also its very easy circuit, with very happy sound and is good project for beginners and kids. Arduino Code: Code Explanation: Circuit Working: […]

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

Simple PIR Motion Detector Circuit

Last updated on 29 June 2026 by Admin-Lavi Leave a Comment

This simple and easy circuit uses a PIR sensor to detect human motion; when motion happens, PIR output goes high and this high signal turns ON an LED through a resistor. Also, this Simple PIR Motion Detector Circuit is easy to make and works with 12V supply. Circuit Working: Parts List: Components Value Quantity Resistors […]

Filed Under: Alarm Circuits, Automation Circuits, Hobby Circuits, Mini Projects, Security and Protection, Sensors and Detectors

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