Hi again,
I have tested the capacitors with a multimeter - they work fine.
I have tested the potentiometer using an led fade program while checking the serial monitor - they work fine.
I have borrowed small speakers to see if it is a matter of voltage - it isn't, it's still not working.
Now I can't upload any other programs on arduino as I've started receiving this error when I try to do so:
avrdude: stk500v2_ReceiveMesage(): timeout arduino
However, I've noticed that the code does not define an output for the signal. It does say that pin 6 should be the output but it is not in the code. Maybe I should also trim the code as it contains a lot of "optional coding" that could cause the issue.
Thank you,
Calin Baciu