A talk I gave to Hackware v0.7, v0.8, Hackers & Painters, NUS Hackers, One Maker Group and iOS Dev Scout to introduce the audience to basic Bluetooth Low Energy concepts followed by code explanations.
Part 1 of my presentation at Hackware v0.7 (Arduino and Android only) can be seen here. https://www.youtube.com/watch?v=pNnwXPatzjc
Part 2 (Raspberry Pi, iOS and BLE Sniffer) can be seen here. https://www.youtube.com/watch?v=UDNkrlfW9Sg
The code is available here. https://github.com/yeokm1/intro-to-ble