Communication Port: COM Serial Port RS-232 UART Test Connection RX TX Receiver/Transmitter W/ Putty Posted byGPMarch 12, 2021Posted inVideosTags:DIY, howto, idea, tutorial, youtube connect com serial port header pin 2 to pin 3 with jumper dupont cable connector Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related