I was wondering what you guys use for your 4 pin connectors when connecting
to the UARTs on the robostix board. I've been hacking apart old CDROM audio
cables but those are starting to become low supply. I'm not sure what they are
called so I'm not sure what to search for. Searching for 4 pin connector is very
vague and does not return any useful. Is there a digikey product number I could
be searching for so I could make my own?