Circuit Diagram

Mini Tesla Coil

A Tesla coil is an electrical device invented by Nikola Tesla in 1891. It is designed to generate very high voltage, low current, high-frequency electricity. In simple terms, it’s a …

Metal Detector Circuit

A metal detector is an electronic device that detects the presence of metal nearby. It works by using electromagnetic fields to sense metal objects—either on or below the ground or …

Audio Level Indicator – VU Meter

The VU meter—short for “volume unit meter”—is a device used to measure the average level of audio signals in terms of their loudness. It visually indicates the intensity of sound …

Powerful Audio Amplifier Using cd4440

Welcome to our latest video where we delve into the fascinating world of audio amplification using the CD4440 IC! In this comprehensive guide, we’ll walk you through the step-by-step process …

How to Make 3.7v Li-ion Battery Charger

How to Make 3.7v Li-ion Battery Charger

A 3.7 V lithium-ion charger using LM358 is a classic DIY solution and great for learning battery charging fundamentals. Below is a clear, practical explanation + working concept. Charging a …

Speed & Light Contoller in one circuit

A PWM (Pulse Width Modulation) motor controller is an electronic device that uses PWM signals to control the speed and direction of a motor. It works by varying the width …

Police Strobe Light Effect Circuit

A Police Strobe Light Chaser Circuit is an electronic circuit designed to mimic the flashing red and blue lights used on police vehicles. It alternately flashes groups of LEDs (commonly …

Dual Axis LED Chaser Circuit

Components Required: 10kΩ Resistor 3.3kΩ Resistor 220Ω Resistor 5mm LED 1µF Capacitor 220µF Capacitor NE555 IC CD4017 IC 9014 Transistor Self-lock Switch 100kΩ Potentiometer Power Connector PCB Board Special Thanks …