[RC232] Are the RC1140 and RC1240 compatible No. They are not compatible. Last Update: August 8, 2017 July 7, 2017 1723 RC232 Q&A Related Knowledge Base Posts -[RC232] What happens if message buffer of 128 bytes gets completely full?[RC232] When I connect RXEN and TXEN to VDD, instead of leaving open, the current consumption increases to 20, mA. When I send a character to the module over RS232, the current appears to be 134mA.[RC232] It is possible to set either4-Byte or 1-Byte addresses in non-volatile memory?