[RC232] Are the RC1140 and RC1240 compatible No. They are not compatible. Last Update: August 8, 2017 July 7, 2017 2139 RC232 Q&A Related Knowledge Base Posts -[RC232] Are all the connections on P5 necessary for a Microcontroller? Or are the pins Config/TXD/RXD/GND sufficient?[RC232] What the Radiocrafts SoM consist of (inside) ?[RC232] Can you please suggest us how to read the set value of PWM?