Can someone give this schematic for a controller board a look?

MIDIbox SID
1

I’m building a stereo SID and I have the perfect enclosure. There are some size restrictions so I wanted to make a combined DIN and controller surface.

It’s still just for a minimal control surface, I just want someone to see if there is any obvious mistakes. I’ll add to it when I can see how much room I got when start placing components the PCB.

This is my second schematic ever, and I have no idea what I’m actually doing.

[midibox_sid_controller.pdf](< base_url >/applications/core/interface/file/attachment.php?id=15716)

2

Pin 10 on U2 would seem not to have a pull-up resistor (all digital inputs need a defined logic state).

Otherwise, it looks basically like it follows the DIN module schematic (can’t say anything about your proposed mapping or header connections).

3

19 minutes ago, latigid on said:

Pin 10 on U2 would seem not to have a pull-up resistor (all digital inputs need a defined logic state).

 

Fixing it now.

Thanks for the input. Quite new to electronics so it is nice to get some reassurance.