Domoticz

Hi.

I am looking for a temperature sensor, supported by RFXCOM, which I can use to measure the temperature of the water in my central heating (CV-leidingen). Can anyone recommend a sensor for this?

I have found the following device, but reviews on whether it works in Domoticz or not, seem contradicting.

Temperatuursensor TFA 30.3139
https://www.conrad.nl/nl/temperatuursen ... &WT.srch=1

Thanks!

The Banggood ones work well with RFXcom and RFlink

Have a link or name of the product I can search for?
I need it to have one of these external connectors so that I can attach the sensor to the Central Heating system pipes, and it needs to talk to RFXCOM.

Bartb wrote:Hi.

I am looking for a temperature sensor, supported by RFXCOM, which I can use to measure the temperature of the water in my central heating (CV-leidingen). Can anyone recommend a sensor for this?

I have found the following device, but reviews on whether it works in Domoticz or not, seem contradicting.

Temperatuursensor TFA 30.3139
https://www.conrad.nl/nl/temperatuursen ... &WT.srch=1

Thanks!

I bought this one a few years ago and its working very well.
https://weerhuisje.nl/index.php?action= ... 31&lang=nl

That's usefull! Thanks!

Today I installed two of these for measuring temperature of the pipes my central heating:
https://www.conrad.nl/nl/temperatuursen ... 18426.html

Both work with RFXCOM in Domoticz.

perhaps build a espeasy with some dallas sensors...
You can make with 1 esp a complete readout device for all of your cv devices..[ 10-15 sensors. ]
And for less then a 1 433mhz sensor. [ buy Ebay ]

I agree with the Dallas Sensors and ESPEasy, I use a NodeMCU with 3 Dallas Sensors, One Central Heating, One Hot Water
and One In the Fridge, (I had a problem with defrosting for no reason).

Cheap and cheerful, upgradable to more sensors if required, and so much fun to play with.

Is the one in the fridge battery powered?

Sorry about the late reply Matt, I have been busy.

The temp sensors are on a single ESP12 node mcu board powered by a mains 5v PSU.
Effectively, if the fridge mains goes off, all 3 sensors go off, so no need for a battery supply.

It's been stable for a while now.

947539730 : DS : Temperature: 36.50 (28-be-df-26-0-0-80-ce)
947542137 : DS : Temperature: 6.31 (28-ff-41-cf-81-15-2-a9)
947543138 : DS : Temperature: 17.75 (28-92-f6-26-0-0-80-e)
947544233 : WD : Uptime 15699 ConnectFailures 0 FreeMem 26896

Hi there,

After reading this thread I bought two TFA 30.3139 with the external sensor and have an original USB RFXtrx on the latest firmware (Type 2 1024) but it cannot receive any signals from this device. I am on 3.8153 of Domoticz. The RFXCom happily receives Oregon and other AC/ARC signals.

I contacted Bert @ RFXCom who asked me to use rfxmngr - unfortunately I have no Windows device handy but I used rfxcmd_gc and didn't see anything coming back other than the Oregon's.

I have disabled all other protocols but no joy.

Does anyone have any suggestions?

Thanks a lot
Ian

Were you able to get it working yet?
I have a similar sensor (TFA 30.3133) and have the following protocols enables for my RFXCOM transceiver.
One of the enabled protocols should allow you to detect/add the sensor.

Thank you - no but I know why now - I have the original RFXtrx433 so I lent the temperature sensor to a friend at work - he got it working but has the later RFXtrx433E device.

The excellent Bert from RFXCom offered a competitive upgrade so I will have a think or just live with them not being supported.

Thank you again!
Ian