Hi,
I have a CEECO payphone that I am coupling with an Adafruit sound effects board. https://learn.adafruit.com/adafruit-audio-fx-sound-board
I am having difficulty isolating each number on the keypad, as an independent button, to couple it with my effect board.
When I hook a gator clip to the right most terminal (bottom) of the keypad, then a second gator clip to any other terminal, multiple buttons will become active.
Depending on the combination of gator clip location, different buttons will activate, columns, rows will activate.
Can someone explain to me how I can isolate each numeric button to function as a simple push button, that way I can trigger a different sound on each number?
I am considering making my own PCB with tactile buttons to place under the keypad, if tapping into the existing board proves to be too cumbersome
Thank you!!
I have a CEECO payphone that I am coupling with an Adafruit sound effects board. https://learn.adafruit.com/adafruit-audio-fx-sound-board
I am having difficulty isolating each number on the keypad, as an independent button, to couple it with my effect board.
When I hook a gator clip to the right most terminal (bottom) of the keypad, then a second gator clip to any other terminal, multiple buttons will become active.
Depending on the combination of gator clip location, different buttons will activate, columns, rows will activate.
Can someone explain to me how I can isolate each numeric button to function as a simple push button, that way I can trigger a different sound on each number?
I am considering making my own PCB with tactile buttons to place under the keypad, if tapping into the existing board proves to be too cumbersome
Thank you!!