Hello,

I'm working with a teensy board and I have a well-working program that I'm trying to add some functions to. I've reached my knowledge limit and need help getting the last pieces to work.

Here's how it generally works:
Pins 0,1,2,3 are functions
Pins 4,5,16,17 are LEDs

When Pin 0 is grounded, the program plays 'system/greeting.wav' and then begins recording, saving a numeric WAV files to the root folder. No change needed.

When Pin 1 is grounded, the program plays 'system/greeting.wav' and then begins playing the saved WAV files, in order from the root folder. No change needed.

Here's where I need help:

When Pin 2 is grounded, it should light up LED pin 4 and play 'system/warning.wav' on a loop. I have this working already but:

Pin 3 is the issue. When Pin 3 is grounded, I need it to interrupt Pin 2's loop, light up both LED Pin 4 and LED Pin 5, and run a new function. Pin 3 should ONLY work if Pin 2 and Pin 3 are BOTH grounded.
- If Pin 2 gets disconnected, it should stop Pin 3's function and go back to Ready state.
- If Pin 3 gets disconnected while Pin 2 is still grounded, it should stop Pin 3's function and stop LED Pin 5, and revert to Pin 2's function and LED.
- If Pin 2 and Pin 3 are both grounded, LED Pin 4 and LED Pin 5 should light up, it should play 'system/recordwarn.wav', beep, and then record a new file 'system/greeting.wav', overwriting the existing file. When Pin 3 disconnects after a recording only, it should then play 'system/recordconfirm.wav' and then go to Ready state.