Sunday, March 5, 2017

Simple sound activated / reactive LED circuit with diagram

A very simple sound activated / reactive LED flashing circuit using transistor TIP41C. All you need is the transistor and 12  Volt battery source. In this demonstration I am using the USB 5 Volt as the power source step up using LM2577 DC to DC booster converter to get 12 Volt. The schematic is in the video.