Obstruction lights are warning lights that we see at the top of tall structures like towers and skyscrapers, installed for indicating the aircrafts and other flying objects about these obstructions. […]
Wireless Music Level Indicator Circuit
A wireless music level indicator is an electronic device built for sensing the varying levels of a music signal and convert it into corresponding levels of illumination over an LED […]
3 Best Joule Thief Circuits
A joule thief circuit is basically an efficient, self-oscillating voltage booster circuit, built using a single transistor, resistor and an inductor, which can boost voltages as low as 0.4 V […]
3D Moon-Sphere LED Driver with Charger and Dimmer Circuit
In this post we learn how to build a homemade LED driver with dimmer and charger circuit for illuminating a 3D moon from a 5V USB source. The idea was […]
200, 600 LED String Circuit on Mains 220V
The post details the construction of a 200 to 600 LED project, using series parallel LEDs for creating an alphabetical display sign board. The idea was requested by Mr. Mubarak […]
7 Watt LED Driver SMPS Circuit – Current Controlled
The presented 7 watt LED driver circuit is an SMPS based non-isolated, transformerless circuit which ensures a safe current controlled output for the attached LED, it is very affordable to […]