Domoticz

I have realised that my barometer show a too small value but it is not a fixed value it has a linear error, i.e. the greater the pressure the larger the error. I know that you can add a fixed value change in the device setup but not according to a formula like, a x pressure + b. Is this possible to implement this?

I would setup a dummy device, write a LUA script that would update that device with the relevant formula

Thanks, I will try that.