You can use this simple visible light communication circuit to send audio and digital information through infrared light, beyond a mile away, with extreme precision. By Sunil Rao The main […]
Search Results for: 555
7 Accurate Square Wave Oscillator Circuits
In this article we comprehensively discuss 7 accurate RC square wave oscillator circuits with 50% duty cycle, by appropriately configuring the gates from various CMOS ICs such as 4001, 4011, […]
RGB Spot Light Generator Mixer Circuit
In this RGB spotlight mixer circuit project, 3 individual spot lights are used, having red, green and blue focus light bulbs in them. The lights can be focused on walls, […]
6 Useful Voltage Controlled Oscillator Circuit Explored
In this post we learn how to build 6 useful voltage controlled oscillator circuits, using various op amps and integrated circuits. As the name suggests, a voltage controlled oscillator or […]
Simple Anti-Theft Alarm Circuit to Protect Valuable Items
This easy yet useful security alarm circuit is designed to get triggered in response to even a brief movement of the unit, causing a loud alarm sound to set off. […]
3-Digit LED Capacitance Meter Circuit
This project is yet another test equipment that can be extremely handy to any electronic hobbyist, and building this unit can be a lot of fun. A capacitance meter is […]