Cosa support library for NEXA Wireless Lighting Control receiver and transmitter.
To use this library you must download and install the [Arduino IDE] (http://www.arduino.cc/en/Main/Software) (or GCC AVR toolchain) and [Cosa] (https://github.com/mikaelpatel/Cosa).
Download and unzip the Cosa-NEXA library into your sketchbook libraries directory. Rename from Cosa-NEXA-master to NEXA.
The NEXA library and examples should be found in the Arduino IDE File>Sketchbook menu. Open the CosaNEXAreceiver sketch. Select the Cosa core by selecting one of the Cosa boards in the Tools>Board menu.