With the radio modules in mini format there is a versatile and pin compatible module family with AVR processors for the 2.4 GHz band which features minimal space requirements and current consumption at once. They belong to the smallest radio modules currently on the market.
Using module variations with RF pads, the user can create its own antenna designs. In addition, control lines for power amplifiers and antenna diversity are available and allow user-specific combinations and expansions. It is not necessary to design an antenna when using the version with a ceramic chip antenna, which is just a few millimeters larger.
The radio modules are available as SMD modules with the single-chip 8-bit AVR microcontrollers SoC ATmega128RFA1 und ATmega256RFR2 from Microchip / Atmel. Whether as an energy-saving end device, router or network coordinator, both series satisfy the requirements of various types of devices.
The radio modules deRFmega256 with the SoC ATmega256RFR2 have enough resources available to meet the requirements of ZigBee and wireless sensor networks. Compared to its predecessor ATmega128RFA1, the ATmega256RFR2 offers double the memory (256 KB Flash, 8 KB EEPROM, 32 KB SRAM).
For the small OEM radio modules we provide you as of late appropriate adapter boards for evaluation. They come with two 23 pin male connectors and are pin and functional compatible to the established eval module series of dresden elektronik.
- from 19 x 13.2 x 3 mm
- microcontroller: ATmega256RFR2 / ATmega128RFA1
- with chip ceramic antenna or RF pads for connection of user-defined antenna designs
- control wiring for power amplifier + antenna diversity / PA + antenna diversity on board
- 2.4 GHz
- receive current up to 8 mA
- range 200 – 500 m