New Controller - Audio from Scratch - Part 9

There have been a few changes to the circuit over the last couple of videos so here is where I bring it back together. I build a new controller that can drive all 4 channels we put on pcb. I modify the output to just use an op-amp as buffer and a DC blocking capacitor to clean the signal. This comes together really well and it’s good to finally see all 4 channels working as intended!

There is probably just a final PCB build video left in this sub series, and maybe some software work seeing what we can do with it.

0:00 Introduction 1:03 Discussion 2:15 Build 3:44 3 States 8:10 Latches 11:10 Register Select 14:25 Predictable initialisation 17:50 Connecting to Channels 21:00 New output circuit 24:25 Connecting to the CPU! 26:01 Initialisation Code 27:38 Fail! 28:48 More testing 29:48 Code tour 30:30 4 Channel Demo! 31:37 Outro ... https://www.youtube.com/watch?v=58IlCHYK7DM