The post explains a simple failproof digital keypad security lock circuit using a keypad module and a single CMOS IC . Introduction A decimal keyboard, a CMOS IC, about three […]
Simple Sawtooth Generator Circuit
The post explains how an efficient sawtooth generator circuit can be built using just a handful of ordinary parts such as BJTs and resistors. Sawtooth generators are often recommended in […]
Music Stroboscope Circuit
In this post we detail the construction of a music triggered stroboscope light circuit,which can be used in parties or festive occasions for creating powerful strobe lights in response to […]
Wireless DC Motor Speed Control Using Arduino
In this post we are going to construct a circuit which can control the speed of 3 individual DC motors using 3 potentiometers wirelessly over a 2.4 GHz communication link. […]
Music Light Circuit without Contact
This music operated dancing light circuit can be positioned in front or near any loudspeaker or an audio source and enable a correspondingly dancing or sequencing lights connected at the […]
Anti-Theft Tracker Alarm Circuit for Protecting valuable
The anti-theft tracker alarm Circuit explained in this article can be used for protecting any preferred valuable item by attaching the receiver device with it while the transmitter is positioned […]