Cannot receive when using a Voltomat 4 channel transmitter

[raimohanska]

I'm trying to receive codes from a Voltomat 4 channel wall socket set remote control.

I don't get any output from the ReceiveDemo application. Maybe this remote is not supported? How to debug this?

I have confirmed that my wiring etc is correct: when sending codes on another arduino using SendDemo, I do get output from ReceiveDemo.

The remote control unit looks exactly like this: https://www.ebay.de/itm/WOW-VOLTOMAT-Fernbedienung-4-Kanal-Alle-Ein-Aus-Intertechno-kompatibel-/112372593666

[raimohanska]

Tried with an Intertechno remote with the same result: nothing.

[raimohanska]

The intertechno transmitter says on the back: ITT-1500, model PET-910

[raimohanska]

It seems that rc-switch doesn't work with (some of) the newer Intertechno systems. My friend tried this with an older remote and a newer one and it only worked with the older one.

[raimohanska]

I believe the problem is that the newer Intertechno transmitters use a longer signal and also use a 3-phase header/sync instead of a single HighLow. I made a quick hack that works for my Intertechno outlets: https://github.com/raimohanska/intertechno-433-on-off/blob/master/intertechno-433-on-off.ino

Would love to contribute to rc-switch too. But if I've understood correctly, this would require some refactoring, because the header consists of 3 intervals instead of a single high/low pair.