[werk_ag]

Hi Tom,

Is good to know that all is up and running. Now, its a great time to upgrade the software of all units with the latest version released yesterday.
It will be good to follow how your solar system will perform during the next winter. Hope you keep us informed. Sharing experiences is very important to all of us.

I have run a wire from battery + to the bat terminal on TX board, so that battery voltage can be monitored. I measured the battery voltage with my multimeter as 12.8V, but the RX screen and web interface all report 12.3V, 0.5V of a difference. Is this normal / to be expected?
Do I just mentally add .5V on to whatever the RX says?

The precision of the battery voltage reading is mainly influenced by the precision of the R9 and R10 resistors on the TX board. Whenever is possible use metal film 1% resistors. Anyway we should always expect an error of 0.1V to 0.2V, due to errors in the Arduino ADC (Arduino ADC voltage reference is not always precisely 5V).

I am using SHT31 temp sensors and a BME280 pressure/temp sensor. Do people find they have to use calibration offsets for these or are they fairly accurate as they are? I have my height accurately set in the config. We have a potential heatwave here in Ireland next week and I would love to get accurate measurements of temp.

Personally I don't use any calibration offset in my config.

Regards