Hi All I am just trying to confirm the wiring to use the additional serial ports on the Mega 2560. I would like to wire a DB9 plug onto my arduino Mega Serial1 Port Some searching on-line has lead me to think that this is what I need: DB9Pin 2Pin 3Pin 5 ArduinoPin 19Pin 18GND UseRX1TX1Ground C…

Arduino Mega - Serial to DB9 plug wiring

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