The shop shutter guard circuit discussed here guards your shop when its shutter is closed i.e., at night if an intruder tries to break the shutter, the piezo senses the […]
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Car Radiator Hot Indicator Circuit
The proposed circuit is very useful which warns the car driver before hand once the radiator gets heated up above the preset level. How it Works The working of this […]
Making a “Helping Third Hand” for Aiding Soldering Jobs
The post explains a step by step construction of a “helping third hand” unit for assisting PCB soldering jobs in order to make the job much hassle free. The gadget […]
Earth Leakage Indicator Circuit for Detecting Current Leakages in Ground Wires
A simple earth leakage indicator circuit discussed here can be used for getting some very useful results regarding current leakages from an appliance body into the earth pin. The idea […]
AC Phase, Neutral, Earth Fault Indicator Circuit
The circuit explained here will provide LED indications and show if there’s a possible fault in the wiring of your home AC Phase, Neutral, and Earth connections. The idea was […]
How to Make Ultrasonic Remote Control Circuit
This ultrasonic remote control circuit can be used to switch and control any appliance ON/OFF through a relay in the receiver circuit. Written by: S.S. Kopparthy Using Ultrasonic Waves This […]