I have an older Denon AVR-3806 that I am hoping I can control with Home Assistant. I have tried the following integration HomeAssistant_Denon_RS232 from Github (GitHub - bluepixel00/HomeAssistant_Denon_RS232) but this keeps failing saying no valid version key in manifest. I have tried creating a manifest.json file with dummy info to try and make it work with no luck.
Can anybody point me in the right direction?