with a few pads to wire these pins up to a USB to serial adapter. A single PCB to do this is extremely simple — all you need are a few pads to hold the pogo pins and a set of holes to plug a ...

DB (D-Sub) Connectors and COM Ports A serial port on a PC is a male 9-pin connector (DE-9 D-sub). Early PCs had two 9-pin connectors or one 9-pin and one 25-pin (DB-25). On a PC, serial ports are ...