The ATmega128RFA1 is a portmanteau of sorts – two separate components combined to form one device; half microcontroller, half RF transciever. ATmega128RFA1 is an IEEE 802.15.4 compliant single-chip, combining the industry- leading AVR microcontroller and best-in-class 2.4GHz RF transceiver providing industry’s highest RF performance for single-chip devices, with a link budget of 103.5dBm.
The ATmega128RFA1 features Wake-on Radio, 32-bit MAC symbol counter, temperature sensor, automatic transmission modes, 128-bit AES crypto engine, true random number generator, high data rate modes, and antenna diversity support.
By looking at the ATmega128RFA1 Development Board you can see that we have changed the overall shape of the PCB to fit the Arduino form factor. We have also removed the SMD DC barrel jack and instead given you space to add a PTH DC barrel jack, JST connector (or screw terminal), and FTDI input. It includes an onboard 3.3V regulator and chip antenna. The board can be powered with either a 5V or a 9V wall wart.