I'm trying out on a requirement on Communicating a VFD with RS485 protocol with Arduino UNO and sending the data using a GSM Module. Is it possible to do RS485 communication and GSM Module communication using a single Tx and Rx pins of Arduino UNO??
I'm also struck facing the same challenge and thus seeking your support.
Can you please share more details on this to firstname.lastname@example.org.
Awaiting for your response.
Shree Harsha K