/**
 * @defgroup    boards_deRFmega256 deRFmega256 modules from Dresden Elektronik
 * @ingroup     boards
 * @brief       Support for deRFmega256 modules produced by Dresden Elektronik

# Overview
deRFmega256 is a family of modules produced by Dresden Elektronik.
deRFmega256 modules are based on [ATmega256rfr2](http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8393-MCU_Wireless-ATmega256RFR2-ATmega128RFR2-ATmega64RFR2_Datasheet.pdf)
MCUs. It include 16MHz main and 32K RTC crystalls and (depending on module type) integrated or not integrated 2.4GHz antenna.

These modules are available in three variants: [deRFmega256-23M00](https://www.dresden-elektronik.de/produkt/24-ghz-avr-derfmega256-23m00.html) with integrated antenna,
[deRFmega256-23M10](https://www.dresden-elektronik.de/produkt/24-ghz-avr-derfmega256-23m10.html) and [deRFmega256-23M12](https://www.dresden-elektronik.de/produkt/24-ghz-avr-derfmega256-23m12.html) without integrated antenna
as separate products or as a main part of other products like [RaspBee](https://phoscon.de/en/raspbee) and [ConBee I](https://phoscon.de/en/conbee)

# Hardware
The [datasheet](https://usermanual.wiki/dresden-elektronik-ingenieurtechnik/MEGA23M12.15-MEGA23M12-User-Manual/info) for modules.

 */
