I have OpenHAB running at home for home automation. I also run an HRV for my house. The Control Panel obviously displays house and roof temperatures and controls the fans to dump air into the house depending on the temperatures. I want to integrate the HRV into OpenHAB (for starters, just get it to display the HRV temperatures in the OpenHAB GUI) I figure I should be able to do this with an Arduino or NodeMCU and tap that into the circuitry at the back of the HRV control panel.
I stumbled across this link which mentions the HRV system uses a simple DS18B20 temperature sensor which is also commonly used sensor for Arduino experiments:
Just wanted to know if anyone has attempted something around this already...?? Thoughts? Potential issues?