BLE
GAPとGATT
https://jellyware.jp/kurage/img/170601_ble_guide2.png
参考サイト
https://jellyware.jp/kurage/bluejelly/ble_guide.html
https://www.tjsys.co.jp/focuson/clme-bluetooth/bt-difference.htm
http://www.microtechnica.tv/support/manual/clickble_man.pdf
本
Bluetooth Low Energy: The Developer's Handbook ちょっと古いけど良さそう
Getting Started with Bluetooth Low Energy: Tools and Techniques for Low-Power Networking