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Oeps… my error. I accidentally switched the GND and the VDD on the DS18S20 sensor. When I switched the wires, the temp sensor started working! The reason why I thought it had to be GA=3, GB=8, because I read that on http://otgw.tclcode.com/firmware.html#configuration GA=function GB=function GPIO A /...

I have created a log file with OpenTherm Monitor. See attachment. I noticed that following entry’s is still coming back: 11:45:07.330591 R801A0000 Read-Data DHW temperature: 0.00 11:45:07.388180 BE01A0000 Data-Inv DHW temperature: 0.00 As if the value is incorrect… And I checked the iSense, and I se...

From the moment I did AA=28, I see values coming at the “Return water temperature”. Great! Tnx! I also tried AA=26, but I didn’t see any result on that. The Domestic hot water temperature still doesn’t get any values. How did you know that value? Is there a list of the possible Data-ID’s? I also che...

Hi, I’m using the OpenTherm Gateway (software version 4.2) between my Remeha Calenta cw5 and a iSense thermostat. I really like the product! Only thing that I needed to do at first is to set the Voltage Reference to 1.458V (VR=4). Because I got “Error 03” messages in the logs. I can read all values ...