Lightweight low power library for Arduino.
Version: 1.40
Date: 15-01-2016
Devices Supported: *ATMega168 *ATMega328P *ATMega32U4 *ATMega2560 *ATSAMD21G18A
###Notes: External interrupt during standby on ATSAMD21G18A requires a patch to the Arduino SAMD Core in order for it to work. Fix is provided by this particular pull request.