The SimplicityTouch can be controlled by RS-232 commands. The attached document contains details on the supported protocol commands. RS-232 Protocol Commands [Click Here][1] [1]: https://hf-files-oregon.s3.amazonaws.com/hdprecordex_kb_attachments/2017/04-19/cf85185a-12f2-4946-9cb3-7892af3f73a5/ST-RS232.pdf ...