@Roland_60 thanks for your replay.

I have it now working in ESPEasy with a MCP41010 that is controlling my indoor termostat on my heatpump.
For someone who knows ESPEasy l guess it is quite easy to develop a ESPEasy component but I just created a custom spi device.

Roland_60: How did it go? Did you manage to implement your digital potentiometer with espeasy?

I would like to have suggestions on cheap working PIR sensors that I can have in all rooms to control what lights can be turned off and on automatic.

Hi,

I have used Tellstick NET for years and now found Domoticz that I think is more flexible. So I made myself a RFlink and start playing.
I have bought some ESP devices also to play with later on.

Found decoding information by strigeus at GitHub https://github.com/strigeus/sparsnas_decoder.

How about adding support to it as I guess the sensor is available all over the world at IKEA.