Read the full blog entry: https://www.iot-experiments.com/sigfox-sensor-node/

# Fuses update @ 1Mhz
`avrdude -c usbtiny -p t2313 -Uhfuse:w:0xDF:m -Uefuse:w:0xff:m -Ulfuse:w:0x64:m`

# Sigfox module
* Communication speed: 9600bps
* Version: AX-Sigfox 1.1.0-ETSI (AT$I=0)
* Get PAC: `AT$I=11` ==> 16 hex chars