I think we can do better ;-)

[TheoL]

The designs our hardware specialized community members make, are smaller than this. But I came accross this article and thought it might be worth sharing.

http://techcrunch.com/2016/04/19/aaduino/

[korttoma]

There is already another thread about this device -> http://forum.mysensors.org/topic/3639/the-aaduino