I am using an Arduino Mega. I was wondering if it is possible to use the RX on a serial port while not using the TX. In other words I'd like to use the TX pin for something else and I'm only using the serial port to receive and don't need to transmit. Is this possible? Thanks for any replies, Digi…

Question about serial ports.

Osgeld September 30, 2012, 5:28am 3

since you have a mega it would be easier to use one of the 3 other serial ports

Topic		Replies	Views
use of the serial tx pins on a mega Programming	2	1010	May 5, 2021
Disabling RX or TX only on hardware UART General Guidance	4	2440	May 5, 2021
What serial ports are there in the Arduino Mega 2560 R3 Website and Forum	4	3902	May 6, 2021
Can I use Arduino MEGA Serial1 TX as output pin while receiving on Serial1 RX? General Guidance	2	1181	May 5, 2021
Free up RX pin while still sending on TX? Frequently-Asked Questions	2	1202	May 6, 2021