I just received an email from SurplusShed offering the Brainlink Bluetooth/IR controller for $20 + $6 shipping US (one week only),
http://www.surplussh...item/r3537.html
http://www.brainlink...are-description
It looks to be a fun device and I bought one. It should be easy to start talking to it with a SPP Bluetooth module. It was developed at CMU,
https://www.ri.cmu.e...211&menu_id=239