Post project 43: Noise Detector
October 3, 2014
on
on
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.
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.
Read full article
Hide full article
Discussion (0 comments)