dtmf shield


Posted on Feb 5, 2014

This is the working prototype. The eagle files have some minor changes made to it. Fixed some mistakes and re-positioned a few parts. This one is for the phreakers of the past. A simple Arduino shield to decode DTMF tones using an audio input. It can easily be hooked up to a cell phone or..


dtmf shield
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Parallel port provides high-resolution temperature sensing
Bomb Deactivation Game
Advanced LED Flasher with 555
Self-arming alarm
50Mhz-trigger
Camera Switch Circuit using 4017
Direct PC access through the mounts DB9 connector
automatic water level circuit
Op Amp 741 Inverting Amplifier Circuit Simulation with output wave form and working
Automatic street light circuit
555 simple electronic circuit diagram massage
Tuning circuit composed by the TA7335P



Top