In this post we learn how to make a simplest metal detector circuit using a single CMOS IC 40106 Simple metal detector circuit The metal detection circuit displayed here might […]
Mains Wiring Phase, Neutral, Earthing Tester Circuit
The post discusses a circuit which can be used for testing mains wiring phase, neutral, earthing line faults simply through 3 neon lamp illumination with a specified pattern, let’s learn […]
Anti-Burglar Home Lighting Circuit
In this post we study how to make an anti-theft anti burglar automatic light for homes, which will randomly switch ON-OFF at some predetermined delays and patterns, causing an impression […]
How to Charge a Li-Ion Battery Correctly and Safely
The post details the correct method of charging a Li-Ion battery with safe parameters. Let’s learn the main points below: The recommended charging rate of an Li-Ion Cell is between […]
Constant Current Battery Charger Circuits
In this post we study the method of making 3 simple constant current battery charger circuits, first one merely utilizes a single resistor, the second design incorporates a single Darlington […]
Automatic Day Night Triggered Car Headlamp Circuit
In this post we learn how to make a simple automatic day night activated car headlamp circuit. The circuit uses a LDR for sensing darkness and daylight and results in […]