Timer4 on the ATmega32U4 (Arduino Leonardo, Micro, Pro Micro) is another one of Microchip/Atmel’s high-speed timers that can be fed by a PLL (phase-locked-loop) multiplied version of the 16MHz system ...
Anyone who would like to be able to add powerful and easy-to-use Bluetooth Low Energy support to a project might be interested in the new Adafruit Bluefruit LE Micro board. The Bluefruit LE Micro also ...