Hi all
I'm new to this arduino forum.
I have a audio amp circuit that picks-up sound.
This amp is connected to a DTMF chip to
decode 0-9 and abcd on my key pad.
What i want to do is pick-up the sound of the key
that pressed on my keypad. then the DTMF chip
decode the pressed keys.then send the code
through my bluetooth module on my phone
then sees those numbers in an app call
BLUETERM. then save to phone.
Can someone write or help me with this Arduino sketch
where it will work right in my circuit.
All help is appreciated.
