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Your thermostat will be added to the matrix if you upload a log file. 8) The presence of MsgID 9 in the sequence of messages the thermostat sends is a reasonable first indication whether the remote override setpoint functionality is available. But it's not definitive. Out of the box, an iSense doesn...

A thermostat repeating the same request over and over is usually a sign that it didn't receive a response, or didn't understand the response it received. The timings in your log show that the thermostat is quite impatient. On average it only waits around half a second for an answer. Sometimes it alr...

Your log shows that the valid range for the DHW setpoint of your boiler is 35 to 70 degrees. -0.0°C is not within that range, so that reading is probably incorrect. The thermostat (or gateway) can indicate to the boiler whether it wants to have preheated hot water available (DHW enable = true) and a...

Issue 1: I have not had reports of such problems from other Celcia 20 users. Have you looked at logs at the time this happens? Without concrete data it will be difficult to solve an issue like this. Issue 2: What firmware are you running on the Wemos? Have you tried different firmware? If it kills a...

The documentation mentions: "Commands are terminated by a carriage return character. A line feed character is optional". As specified by RFC2234 , the "internet standard newline" is CRLF. So, as long as your TCP connection uses the internet standard newline, you can just send com...

Either you are following up to a thread as if you are the original poster when you're not, or you changed user names. In any case it's confusing. Spreading information over two threads also doesn't help. Making it difficult for people to understand the situation isn't generally the best strategy whe...

The boiler interface of the OTGW is completely electrically separated from the rest of the device. It relies on getting power from the boiler. A thermostat also provides no power to its inputs. So connecting the boiler interface of the OTGW to a thermostat is the similar to connecting two powerless ...

Z-Wave is a wireless protocol that is something completely different than Opentherm. The ATAG Z-bus on the other hand is supposed to be similar to Opentherm. It is intended for an ATAG Z-thermostat (EaZy or WiZe). The manual for the boiler specifies that aside from these thermostats, any Opentherm t...

OTmonitor heeft daar een vinkje voor. Maar vanwege de lage baudrate waarmee de OTGW communiceert kost het versturen van een PS=1 rapport bijna een kwart seconde. Er bestaat daardoor een redelijke kans dat je 1 of 2 berichten mist. Dat kunnen net belangrijke berichten zijn. Dus liefst het PS=1 comman...

I think I got it working with the latest commit on github . Binaries are available via github actions . It's no longer necessary to modify the source to change the span. Just add "span 14400" (or whatever span you want) in the view section of the configuration file. Let me know if you noti...

Ik heb zelf nog totaal geen ervaring met warmtepompen, dus ik ben bang dat ik niet heel behulpzaam kan zijn. Uit een enkel overzichtsrapport valt sowieso niet erg veel op te maken. Ik zou zelf een uitgebreide log van de opentherm berichten (dus niet met PS=1) van de 2 situaties (aansturing door een ...

When using the Nodo shop OTGW with a Wemos or NodeMCU, there are really actually two distinct parts of the device: The stuff around the PIC, corresponding to the original OTGW documented on the otgw site , and the Wemos/NodeMCU, which is like a mini computer talking to the OTGW part via a serial con...

grzech wrote: ↑Mon Nov 13, 2023 10:34 am What should I check first to solve the problem?

See the slave interface part of the trouble shooting instructions.

There are two possibilities for connecting a DS18B20 to the OTGW: You can connect it to the PIC or to the Wemos. You only show information about the Wemos, which suggests that that's the method you're using. But then you don't have the "GPIO Sensors Enabled" option checked, which would be ...

The PIC communicates at 9600 baud. This speed was chosen to make sure the code has enough time to handle each command before the next one arrives. It simply is not possible to send commands quickly and overrun the input buffer. So you don't have to wait for a response before sending the next one. Mu...