6. OPERATING MODE
The operating mode could be change using ATS00command
Available operating mode :
Sigfox disabled
1)
Serial to Sigfox repeater : Bridge serial to long range mode
2)
Local and Serial to Sigfox repeater : Bridge short to long range mode
3)
The ARM-NANO is able to receive data form serial port or local radio and send back them using
Sigfox protocol. The transceiver will split the frame received on serial port to 12 bytes and forward
them on Sigfox network.
It is always possible to send data on Sigfox using AT command.
6.1. BRIDGE UART TO SIGFOX MODE
You could switch between: UART ó short range mode (AtimRadioModem) and UART à long
range mode (SigfoxProtocole).
To enter in UART to Sigfox Bridge mode, configure the ATS000 register to 0x50. To confirm the
mode change, reset the module using "ATR" command.
There is no acknowledgement when a frame is sent.
Users could send 256 bytes on serial port, frames (with a maximum size of 12 bytes) are sent on
SIGFOX.
The serial data must be sent in hexadecimal format. Example: to receive "Hello world" on Sigfox,
send "Hello world" packet (equivalent to "0x48 0x65 0x6c 0x6c 0x6f 0x77 0x6f 0x72 0x6c 0x64")
on UART port.
REMARK !
If the ARM-NANO received a packet of "+++" (equivalent to "0x2B 0x2B 0x2B") on serial, the data
will not be send on Sigfox and the module will enter in AT command mode.
6.1. BRIDGE UART AND ARM RADIO TO SIGFOX MODE
Every packet received in radio local will be forwarded on Sigfox radio, splitted in 12 bytes packet.
The radio data must be sent in hexadecimal format. Example: to receive "Hello world" on Sigfox,
send "Hello world" packet (equivalent to "0x48 0x65 0x6c 0x6c 0x6f 0x77 0x6f 0x72 0x6c 0x64").
REMARK !
If the ARM-NANO received a packet of "$$$" on radio, the data will not be send on Sigfox and the
module will enter in AT command mode.
ARM-NANO GUIDE D'UTILISATION | ATIM
ARMSE_MU2.0
29