HA is installed on a Pi 3B with a serial hat. The serial port is connected to a UPB controller. The UPB integration appears to be able to send commands (lights eventually react though with a delay), but the integration debug logs indicate that it is not receiving status updates from the controller.
This doesn’t feel like an integration specific issue so I would like a little guidance on how I might confirm that status updates are 1) arriving at the host OS level 2) are forwarded to the Core container and 3) are being delivered to the integration. Is this type of troubleshooting possible?
Any help would be most appreciated.