This is Part 2 of a video series on the PSPi Version 4 board to put a Raspberry Pi Zero in a PSP shell. It is meant to be a closure of v4, so I can move on to other projects such as 3D printer mods and possibly some more Raspberry Pi handheld gaming systems. Links: Link 1 to PSP Stand :4134563 Link 2 for Pi Original Schematic Link 3 to PWM on Wikipedia Link 4 Pi Zero W Link 5 PAM2306 Link 6 Pi 3 Link 7 PWM driver Link 8 Schematics on EasyEDA: