9.4
End-to-end connectivity
9.4.1
End-to-end data transfer
Once the cellular connectivity is activated and the device is registered on the network, the application pre-
programmed on STM32 sends regularly (every 2 seconds) an echo message to an echo server located on the
internet. The user can see the trace of the communication result as shown in the terminal window.
Note that the RSSI level is also monitored every 10 seconds and displayed (AT+CSQ) on the terminal console.
Figure 23.
Terminal console trace
UM2743
End-to-end connectivity
UM2743
-
Rev 1
page 39/58