[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 2808 RC232 Q&A Related Knowledge Base Posts -[RC232] Should RC1140 be better than RC1180for this application because attenuation on water will be lower a at 433 ?[RC232] Can you please suggest us how to read the set value of PWM?[RC232] “I have a question for the RC2500HP-RC232, which seems not to be listed in the datasheet. We have the RC2500HP-RC232 connected to a supply voltage of 3.3v. Which voltage will the uart tx output from the RC2500HP-RC232 be? We found a other note on your site, that suggested that it would only have 2.7v on the uart tx pin, even though the module was supplied with 3.3v. “