to preface, "Fan" here is a pin connected to the emitter of a PNP transistor, with ground connected to base, so that when it's high, current can flow from collector to emitter, activating a fan powered externally by a 12V battery. The LED's, GreenLED and RedLED are both just normal LED's, designated…

How to make this program like a clap/snap fingers switch, and filter out all excess noise?

begomeordodocks September 21, 2021, 4:46pm 4

the model of the sound sensor

schematic: