Read and write with SK108-S. This is an alternative to NiceRF's Windows only software. (https://www.nicerf.com/product_131_40.html) The protocol was studied in windows using a standard serial analyzer.
SK108-S is used to program the SK108 wireless. SK108 is an industrial four channel wireless switch controller.
GUI is written with Lazarus IDE and reading/writing to SK108 is written in C.
Included is rpm made in CentOS 7.