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3. SIGFOX FRAME SENDING
3.1. SEND A BIT STATUS
ARM-Nano implement the following command to send a radio bit status :
Cmd: AT$SB=<status value> to send a radio bit status (0 or 1)
Ex: AT$SB=1 : Send 0x01 payload.
3.2. SEND PAYLOAD IN BYTES
ARM-Nano implement the following command to send a payload radio message :
Cmd: AT$SF=<payload data> to send payload
payload_data = each byte coded in 2 ASCII. Payload length is from 1byte to 12 bytes
Ex :
AT$SF=313245 : Send 0x31 0x32 0x45 payload.
AT$SF=010205 : Send 0x01 0x02 0x05 payload.
Code example :
static const char ascii_hex[16] =
{
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
0x41, 0x42, 0x43, 0x44, 0x45, 0x46
};
msgUART [0] = 'A';
msgUART [1] = 'T';
msgUART [2] = '$';
msgUART [3] = 'S';
msgUART [4] = 'F';
msgUART [5] = '=';
msgUART[6] = ascii_hex[((msgSFX.hexaSrc1)&0xF0)>>4];
msgUART [7] = ascii_hex[((msgSFX.hexaSrc1)&0x0F)];
msgUART [8] = ascii_hex[((msgSFX.hexaSrc2)&0xF0)>>4];
msgUART [9] = ascii_hex[((msgSFX.hexaSrc2)&0x0F)];
msgUART [10] = ascii_hex[((msgSFX.hexaSrc3)&0xF0)>>4];
msgUART [11] = ascii_hex[((msgSFX.hexaSrc3)&0x0F)];
msgUART [12] = ascii_hex[((msgSFX.hexaSrc4)&0xF0)>>4];
msgUART [13] = ascii_hex[((msgSFX.hexaSrc4)&0x0F)];
PutTerminalBuffer((char*)&msgUART,sizeof msgUART);
4. SIGFOX TRANSCEIVER CONFIGURATION
4.1. RADIO PROTOCOL CONFIGURATION
The ARM-Nano has two different radio technologies in the same module: short range (ARM
mode) and long range (Sigfox mode).
The ARM protocol is dedicated to point to point and star communications.
4.2. OUT OF BAND MANAGEMENT CONFIGURATION
Out of band messages are messages which have SIGFOX network well known format. This out of
band message can be deactivated by setting the out of band duty cycle.
Cmd: AT$S300=< KA period in hour> to configure the keep alive out of band period (0 for disa-
ble).
Resp :OK
Default value = 0
ARM-NANO GUIDE D'UTILISATION | ATIM
ARMSE_MU2.0
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