DTMF CIRCUIT
Connects to the audio output of the phone. phone automatically turns on an incoming call. When the other party presses the number 1, the relay is active, and when it presses 2, it is deactivated.
I need your help about PCB's production process. I hope you will sponsor me in this study. Best regards.
13800+ Projects Sponsored
Posted in
Arduino,
Nov 25,2018
1,192 viewsReport item
- Comments(0)
- Likes(1)

Upload photo
0 / 10000