"RFLink" is an open-source project which involves an Arduino MEGA 2560 and a small board holding one or more RF modules.
The Arduino needs to be flashed with special firmware (see resources).
Currently it supports this list of device operating on 433Mhz.
Supported devices list
The received data on the serial port looks like this:
20;00;Nodo RadioFrequencyLink - RFLink Gateway V1.1 - R35;
Download the latest zip file with the firmware, it contains also a flash tool called "RFLink Loader"
It's a Windows executable.
Start it, select firmware file to load, click Scan Available Ports, and click "Upload/Program Firmware to Device"
Wait until finished.
It should also be possible to flash it from Linux cli using avrdude, but I didn't test this.
$ sudo apt-get install avrude
$ avrdude -v -p atmega2560 -c stk500 -P /dev/<your port> -b 115200 -D -U flash:w:/home/ron/RFLink.cpp.hex:i
Examine serial output¶
You can also start logging mode to examine the output of the device, click "Serial Logging Mode" to On