VIDEO UPDATE + The ControlBlock Switch

• Wiped the SD card and reinstalled the latest RetroPie OS.
• Installed the ControlBlock Service.
• Discovered the RESET switch I have wired to control power is not going to function as-is. The power switch is meant to be an on-off toggle, not a momentary switch.

TO-DO:

1. Resolve the switch issue.
2. Build the custom arcade controllers.
3. Get the Teensy keyboard code working.
4. Reinstall the keyboard port.
5. Load additional ROMs (look into MAME etc.).

UPDATE re: power switch -

After thinking about it a bit, I realized by far the easiest solution is to install small toggle switch on the back.  But I won't be deterred from my desire to use the keyboard.  Thus, I'll be doing something like this:

Check eBay and sure enough, there's a sub-$5 Chinese circuit for that.

This is also an interesting and super simple circuit, though it requires 2 switches: