[RC232] Are the RC1140 and RC1240 compatible No. They are not compatible. Last Update: August 8, 2017 July 7, 2017 1570 RC232 Q&A Related Knowledge Base Posts -[RC232] Can I reduce the time when using the S command to read the RSSI? It takes 19ms[RC232] “Please confirm that: RC1180/1140 and 1190 have exactly the same foot print/pin out… The goal being to have only one PCB and the same print for the 3 modules. “[RC232] If more than node will transmit at same to central point – will RC232 protocol queue data somehow, or there will be collision or data will be lost? “