XPLR-HPG-1 - User guide
UBX-23000692 - R01
Product description
Page 11 of 37
C1-Public
1.5.2
Case #2: Correction data over Cellular
In this scenario, the flow starts when the LARA-R6 modem (hosted on the 4G LTE 2 Click board)
acquires correction data and the decryption keys through the cellular network using an MQTT
connection. After that, NORA-W106 requests the correction data via the UART interface and then
forwards to the GNSS RTK 2 Click board (ZED-F9R) through the I2C interface. Moreover, the NORA-
W106 module also addresses the decryption keys for the correction data packages to ZED-F9R.
The active components in this use case are highlighted red in
Figure 4: Correction data flow (LTE Cat1 modem)
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The GNSS RTK 2 Click board (ZED-F9R) can work with the UART or I2C interfaces. On the C213
baseboard, the UART interface is available on the microbus 1 and 2 slots. NORA-W106 does not
support UART on microBUS 3.
For the example software, build instructions, and description of this use case configuration, see also
Correction Data over MQTT from Thingstream Point Perfect Service (manual)