Radios and Microcontrollers

Cut the cord & connect everything!

Bluetooth 4.0 / LE

Bluetooth LE is excellent and many boards have been released around the TI CC2540.

BLE Shield and Mini

From Red Bear Lab, lots of example code and open source Biscuit firmware.

• https://github.com/RedBearLab/Biscuit
• http://redbearlab.com/bleshield/
• http://redbearlab.com/blemini/

HM10/HM11

Jinan Huamao Technology makes inexpensive Bluetooth LE modules (HM-10, HM-11) based on the TI CC2540.

• HM-10 with breakout
• raw modules and build your own breakout board

Datasheets, sample code, etc

• http://www.jnhuamao.cn/index_en.asp?ID=1

*duino/BLE combos

• http://blog.onlycoin.com/posts/2013/10/3/coin-arduino-ble-dev-kit
• http://www.kickstarter.com/projects/kytelabs/bleduino-bluetooth-40-ble-made-easy-arduino-compat