I built this: http://www.moonbaseotago.com/cheaprf/dev_playa1.png http://www.moonbaseotago.com/cheaprf/dev_playa1.png 10+ years ago = it uses a CC2533 RF/CPU zi

I built this: http://www.moonbaseotago.com/cheaprf/dev_playa1.png http://www.moonbaseotago.com/cheaprf/dev_playa1.png 10+ years ago = it uses a CC2533 RF/CPU zigbee core and forms a mesh net (it does SUOTA that way too) - we designed it for Burning Man but never swung the funding for tens of thousands of them You can find more here: http://www.moonbaseotago.com/cheaprf/ http://www.moonbaseotago.com/cheaprf/