Microphones can hear sound but the signal is very weak. Then this Simple MIC Amplifier Circuit using IC LM358 make signal strong. LM358 chip is cheap, easy and can work with two mic signals so people use it a lot. Audio amplifiers take weak sound signals from mic or music player and make them strong […]
Automatic Staircase Light Circuit
Automatic Staircase Light Circuit turn ON light when someone uses stairs. After some time it turn OFF by itself automatically. It help keep home safe and saves electricity. Circuit Introduction: Regular stair lights: Need to turn ON/OFF by hand using switches at top and bottom. Sometimes people forget to turn OFF, so energy gets wasted. […]
220V Wind Turbine Generator Circuit
220V Wind Turbine Generator Circuit changes wind energy to useable home power with 220V AC. We need electricity every day so people try to get it free. This simple small wind turbine is for home or low power use. It cost less and give more electricity for the price. Circuit Working: Parts List: Category Item […]
How to Build a Mini Tesla Coil Circuit
In this post for How to Build a Mini Tesla Coil Circuit these tesla coil make high voltage and low current. Mini Tesla coil is small version of big one. It can light small things or make tiny sparks. It runs on 9V battery or other low power. Circuit Working: Parts List: Category Item Quantity […]
IC 555 Solar Charger Controller Circuit
We can make small IC 555 Solar Charger Controller Circuit. This circuit checks battery voltage from solar panel. When battery is full then the circuit stop power from panel. This stop battery from overcharge and damage. Circuit Working: Parts List: Category Description Quantity Resistors R1 330Ω set to 14.9V 1/4 watt 1 R2 330Ω set […]
Water Level Controller Circuit using IC 555
We can make simple Water Level Controller Circuit using IC 555 for our tank. It stop pump when tank is full and start again when water is low. We can change some parts to match our tank size and water level. Circuit Working: Parts List: Category Description Quantity Resistors 1k 1/4 watt 1 100k 1/4 […]