Josh Bleecher Snyder (@offbymany) joined us to talk about PayPal's Beacon, being acquired, the Go programming language, BTLE, computer vision, and working at a large company after founding small ones.
Bluetooth Low Energy: A Developer's Handbook by Robin Heydon
TI CC2540 BTLE module
Learning OpenCV: Computer Vision by Gary Bradski and Adrian Kaehler
Gatt is a Go package for building Bluetooth Low Energy peripherals (video description by Josh from GopherCon 2014)