Domoticz

Hello,

I am running the current stable release on a Pi B, and newly experimenting EnOcean with an ESP3 EnOcean USB stick.

For the moment, i only have a single temperature sensor, a Siemens QAX95.4. It is a 0 to 50°C room sensor, which is stated here :

https://mall.industry.siemens.com/mall/ ... s/10223905

Puzzling is that the product doc says it uses the EEP 07-10-01 profile, which seems to imply that it is a 0 to 40 °C sensor...

The sensor does not show in the domoticz device list ; the log shows :

2015-12-10 21:30:32.929 EnOcean: 01 (0A/07) A5 E8 80 83 0F 01 86 62 DD 00 01 FF FF FF FF 3A 00
2015-12-10 21:30:32.929 EnOcean: destination: 0xffffffff<br>RSSI: 42
2015-12-10 21:30:32.929 EnOcean: 4BS data: Sender id: 0x018662dd Status: 00 Data: 83
2015-12-10 21:30:32.931 EnOcean: Need Teach-In for 018662DD

i've searched a bit about EnOcean frames, and lookes into domoticz source code. It seems that the domoticz log rightfully identifies a 4 BS frame, but that Domoticz doesn't know the manufacturer, the product id nor maybe how to decode a 0 to 50°C frame.

Is it possible to add support for this product? Assuming the frame decodes same as 0 to 40°C, then the data byte should be scaled from 0 to 255 to 0 to 50°C but i'm not sure because [PDF]EnOcean Equipment Profiles EEP 2.6.3 doesn't mention 0 to 50 but rather 0 to 40...

Regards,
Stéphane

Replying to myself,

The sensor VERY LIKELY has a 0/40 range and not a 0/50 as shows on the web product page.

I have done several comparative measurements today, and the hex data byte value from the domoticz log matches the temperature measured with another sensor when scaled to 0/40.

So i guess adding support for it should be a matter of adding entries for Siemens in the manufacturer table, and product type in the product table ; then eventually routing the byte decode to the already existing 0/40 scaling code, all that into the enocean domoticz code.

I am considering trying to do that myself, as a starting point for some spare time effort to help the domoticz dev team.

Before i get started, Gizmocuz, do you validate my findings?

Regards,
Stéphane

Replying to myself again,

Forget it, i've made it to work.

The Siemens website which states that the measurement range is 0 to 50°C is wrong, it is 0 to 40.

The issue is that domoticz does not handle the "variations" of the Teach-In message sent by the remote units when their Learn button is pressed. These variations are in the EnOcean spec, and the QAX95.4 uses one of those variations.

So i will post a patch.

Regards,
--
Stéphane