u-blox NORA-W2 Series, Hardware Integration Manual

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NORA-W2 series - Hardware integration manual
UBX-22005177 - R01 AWS IoT ExpressLink Page 26 of 61
C1 – Public
4 AWS IoT ExpressLink
The embedded AWS IoT ExpressLink compliant software includes secured certificates that are pre-
flashed in the modules. This allows the module to
provide “out of the box” connectivity with Amazon
Web Services (AWS) with no effort from the customer. It also supports secure Host and Firmware
Over the Air (OTA) upgrades to sustain a high level of quality. Control and data communication is done
through the module with stateless AT-commands over a serial interface.
4.1 AWS IoT ExpressLink programmer's guide
The NORA-W2 series modules, AWS IoT ExpressLink, follows and implements the full AWS
specification therefore the documentation is made available on the AWS IoT ExpressLink
programmer
’ s guide [11] .
☞
To understand divergences between the AWS specification and the u-blox firmware
implementation, see the NORA-W2 AWS IoT ExpressLink firmware release notes
[13] .
4.2 AWS-specific AT commands for u-blox module
In addition to the commands described in the AWS IoT ExpressLink programmer's guide, u-blox have
implemented several extra commands to cover additional features, functionality, and testing. The
extra commands and responses not currently documented by AWS programmers guide
[11] are
described in this section.
4.2.1 AT+DIAG SCAN [time_out_in_seconds]
Scan for available Access Points, [time_out_in_seconds] is options and by setting it to 0 (default) it
will block until all channels are scanned.
Response:
•
OK7<CR><LF>
•
SSID: example_network0, RSSI: -53, Authmode: WPA2_ENTERPRISE, Pairwise Cipher: CCMP,
Group Cipher: CCMP, Channel:
11
<CR><LF>
• ...
• Max 15 SSIDs
4.2.2 AT+DIAG CONNECT
Connect to the previously defined Access Point (
AT+CONF SSID <ssid>
) using the defined passphrase
(
AT+CONF Passphrase <passphrase>
). For details about the configuration commands, see the AWS IoT
ExpressLink programmer’s guide [11] .
Response:
•
OK<CR><LF>
4.2.3 AT+DIAG IPCONFIG
Return information about the modules IP status.
Response:
•
OK4<CR><LF>
•
192.168.0.2<LF>
•
192.168.0.2<LF>
•
255.255.255.0<LF>