Post project 43: Noise Detector

October 3, 2014 | 16:43
Post project 43: Noise Detector
Post project 43: Noise Detector
This simple circuit detects noise in a room and activates a beeper if the noise exceeds an adjustable threshold level.
Don't miss any project, take out a free membership to Elektor.POST now!

Among other things, this circuit can be used as a baby alarm, but it is also suitable for other applications such as monitoring the noise level during a party. The idea is that the circuit board and the microphone are placed in the room to be monitored, while the beeper is placed in another room.
PDF download full
Loading comments...
related items