Awesome showcase of cross-technology signalling! However, if you intend on getting one of these transmitter/receiver pairs, as one reviewer on Amazon noted[1],

Awesome showcase of cross-technology signalling! However, if you intend on getting one of these transmitter/receiver pairs, as one reviewer on Amazon noted[1], you'll likely run into WiFi interference problems. [1] http://www.amazon.com/review/R13BSAFVTXO6H0/ref=cm_cr_rdp_perm?ie=UTF8&ASIN=B00ANYXY4W http://www.amazon.com/review/R13BSAFVTXO6H0/ref=cm_cr_rdp_pe...