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Hey guys!
I have a Adafruit 4x3 matrix telephone keypad, which is already connected to an arduino mega and working. On top of that I have soldered an MP3 shield. When the years 1980 until 2016 are pressed, a certain audio file is played. This is all working. Now I want to implement different other audios, for example when you press the star or hash key. Or a constant dial tone in the background, which stops when a certain year is being pressed.
Can anyone help me with that?
Thanks!