Hi all
I need to know has anyone on here ever used a keypad encoder like the 74c922 from Digikey.
I need to interface an Audio amps output to the encoder IC. So I could pick up keypresses from another
keypad that I already build.It has an audio feedback sound when each key is press.trying to mimic the keypad
by using the Audio amp to pickup the sound from each key that is pressed with the second keypad setup
using an audio amp interface to the 74c922 encoder IC.
Does anyone or some one on this site know or what I could use to interface between the audio amps output and the 74c922 encoder.There must be a why to do this.
mimicking a keypad. I hope you understand me and what I'm doing. School research project.
All help is appreciated.
I need to know has anyone on here ever used a keypad encoder like the 74c922 from Digikey.
I need to interface an Audio amps output to the encoder IC. So I could pick up keypresses from another
keypad that I already build.It has an audio feedback sound when each key is press.trying to mimic the keypad
by using the Audio amp to pickup the sound from each key that is pressed with the second keypad setup
using an audio amp interface to the 74c922 encoder IC.
Does anyone or some one on this site know or what I could use to interface between the audio amps output and the 74c922 encoder.There must be a why to do this.
mimicking a keypad. I hope you understand me and what I'm doing. School research project.
All help is appreciated.