User's Manual

SIGFOX US demonstrator – User guide v1.1
page : 10 / 16
3.2 Command Mode
Command Mode gives the user access to the test functions described by SIGFOX in the document “UNB Transceiver AT
command set requirements specifications” Rev. 0.8 that was published by SIGFOX.
Entry in command mode is allowed in two situations:
- During the GPS init phase, just after power-up.
- Between two nominal cycles.
Pressing Button 2 places the product in command mode. LED1 becomes steady red, indicating that the product is in command
mode. To exit command mode, press Button 2 again. LED1 will turn off.
While in command mode, it is possible to execute SIGFOX’s standard test functions from a computer terminal. It is also possible
to execute specific configuration functions.
3.2.1 SIGFOX test functions
Command
description
AT$SB
Send a bit Status
Cmd: AT$SB=<status value> to send a bit status
Resp: OK
Cmd: AT$SB=<status value>,1 to send a bit status and wait
for response
Resp: OK
+RX=<8 bytes ASCII bytes>
status_value = 0/1
AT$SF
Send/ Receive Payload in bytes
Cmd: AT$SF=<payload data> to send payload
Resp: OK
Cmd: AT$SF=<payload data>,1 to send payload
and wait for response after 20s after sending
during 25s.
Resp: OK
+RX=<8 bytes ASCII bytes>
payload_data = each byte coded in 2 ASCII. Payload length is
from 1byte to 12 bytes
Examples :
AT$SF=313245: Send 0x31 0x32 0x45 payload with no
response waited.
AT$SF=010205,1 : Send 0x01 0x02 0x05 payload with a
response waited.