[RC232] Are the modules full duplex ? Module is half duplex. Sent and receive but not at the same time. Last Update: August 8, 2017 February 3, 2017 2927 RC232 Q&A Related Knowledge Base Posts -[RC232] Are RC17XX and RC17XXGP pin compatible?[RC232] Do you have an Unlimited modular approval FCC / IC + EN Test results?[RC232] We are in the process of evaluating the RC1240, The only thing I’m not sure about at the moment is how to implement a busy check before transmitting