[RC232] I would like to know how to use the pins N°27 and 28 on the RC2500HP Pin 27 and 28 must be left open. Last Update: August 8, 2017 December 20, 2016 2622 RC232 Q&A Related Knowledge Base Posts -[RC232] Can a software update / bootloader command be added? We need something that allows us to update the RC232 module in the field via the UART.[RC232] we use your Radiocrafts Modules (1180-RC232) and have problems with the configuration. Could you send us an example in C how to handle this?[RC232] Is it possible to program the frequency between to 240-378MHz?