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 […]
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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, […]
100 °C to 1000 °C Thermocouple Temperature Meter Circuit
The post explains a simple op amp based thermocouple temperature meter circuit which can be used for measuring high temperatures in the range of 100 °C to 1000 °C, in […]
TTL, LSTTL, CMOS, HCCMOS ICs Pinouts
Although not many years ago logic integrated circuits in electronic circuits for the hobbyists were non-existent, these gradually made an appearance in a variety of emerging new electronic projects. We […]
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 […]
Extended High Bass Effect from Small Speaker Box [Cross-Over-Filter]
Bigger speaker boxes produce proportionately higher bass effect, this fact is know to all of us. However, bigger boxes are not only expensive, they can be cumbersome and bulky. How […]