The SARA-R5 supports LTE-M and NB-IoT data communication for multi-regional use. Please check the LTE
signal availability for your area before purchasing a SARA-R5 product and selecting an LTE service provider /
operator.
Data Connectivity
When working through the data connectivity examples, it is important that you run examples 13, 14 and 17 in
order, before moving on to example 18 or 19. Each example builds on the last and together they configure the
SARA's data connection correctly.
TP (1PPS) Pin and LED
At the time of writing, we are shipping the SARA-R5 on the Asset Tracker with firmware version 02.06 on it. 02.06
contains a feature (which is just a polite name for a bug!) which means the 1 Pulse-Per-Second from the GNSS
does work, but the pulse is only ~3 microseconds wide and cannot be adjusted. Handy huh? u-blox are aware of
this - in fact we told them about it - and a fix is coming but they haven't added it yet. We will keep an eye out for it
and update this section once the fix is released.
Just to complicate matters, 3 microseconds is too short for the buffer FET and LED connected to the timing pulse
to respond. So, we regret that you cannot currently use the TP PTH. We will share the fix with you as soon as we
have it. The SARA firmware is easy to update using the Asset Tracker Firmware Update Tool.
NB/IoT Compatibility
The SparkFun MicroMod Asset Tracker uses the "00B" product version of the SARA-R5 module (specifically the
SARA-R510M8S-00B-00). LTE NB-IoT Radio Access Technology, and the LTE FDD bands: 66, 71, 85 are not
supported by this version.
General Troubleshooting Help
Not working as expected and need help?
If you need technical assistance and more information on a product that is not working as you expected, we
recommend heading on over to the SparkFun Technical Assistance page for some initial troubleshooting.
If you don't find what you need there, the SparkFun Forums: MicroMod are a great place to find and ask for
help. If this is your first visit, you'll need to create a Forum Account to search product forums and post
questions.
Resources and Going Further
Now that you've successfully got your MicroMod Asset Tracker Carrier Board up and running with your Processor
Board, it's time to incorporate it into your own tracking project! For more information, check out the resources
below:
SPARKFUN TECHNICAL ASSISTANCE PAGE
SPARKFUN FORUMS: MICROMOD
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