@electrik Looks like the discovery does work with MQTT gateway. Thanks a bunch, I got it working now

check! funny.. Your post's image, and ebay's image, are both swapped horizontally. Or is it the chinese printing it wrongly? EDIT: But they have the price just right ;) EDIT 2: Interesting topic tekka. @Tinimini: What did you find out using an ATtiny85? any tests? any results?.. any problems?

Oh yeah... Read the docs.. Yes, I probably should do that too :) Thanks!