Control Itho ventilation box with CC1150 RF-transmitter?

[proohu01]

I recently found a very good article by Rogier Reedijk who was able to reverse engineer the Itho CVE ECO RTF ventilation box remote. He got it working with the help of an Ardruino and a CC1150 RF transmitter (868MHz). Have a look at the 6 page instruction: http://www.progz.nl/blog/index.php/2014 ... ft-part-1/

I know a lot of Domo*.* fans have such a device in their home. (At least in The Netherlands. As do I). There are already several ways to switch this ventilation box using e.g. zwave switches. I myself use a zwave switch at the moment an thus are able to switch from low to high and verse versa.

It would be great to have a way to have the ability to switch this Itho box (all four modes) from within Domoticz using e.g. the CC1150 RF transmitter on a Raspberry Pi. I do not possess programming skill and reverse engineering skills like Rogier. I'm just hoping someone else gets exited by this and does all the work for me

[ThinkPad]

Read this:

As of 24 december 2015 Itho CVE RFT Fan's are supported. But you need a RFXtrx868X tranceiver which isn't in the RFXcom shop (yet).

Source: http://www.domoticaforum.eu/viewtopic.p ... 244#p77880

But maybe you can convert the Arduino code from the blogpost, so that the Arduino accepts commands like 'IthoLowSpeed' over serial. And then create a script in Domoticz that sends these commands to the Arduino. Basically that is how the RFXCOM also works...

[proohu01]

Thanks Thinkpad. The simplest option is to wait for the RFXtrx868x then. And wait until it is added to Domoticz.

[ThinkPad]

As you are already using it with a Z-Wave, waiting would be the best option for you indeed. I was dropping the Arduino part just for later reference for others

[HoLeeShiet]

Someone has been using the knowledge of Domoticz to sell his product here: http://link.marktplaats.nl/m1013524009

[BarryT]

I have some news for all of the Itho CVE ECO RFT users:

If you have a (wireless) switch to power on or off the box, you have now 3 values to work with:

Power OFF = FAN OFF
Power ON = LOW FAN
Power OFF for 2 seconds and then Power ON again, will go to HIGH FAN.
This is tested with 2 boxes, and works perfect.

I use a script that will trigger the box to LOW when 10% humidty is going up in 10 seconds, and the box will go to HIGH (send OFF for 2 sec, then ON again) if the humidity is going up to 20%+ in 30 seconds.

Try it out!