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LTE NB-IoT Open-Source Arduino Shield with CAT-M & GNSS
An open-source LTE shield equipped with SIMCOM’s SIM7000-series modules combined with the latest LTE CAT-M technology has been created by Hackaday member Timothy Woo to enable Arduino users to easily connect low-power Internet of Things devices to next-generation cellular technology.
“With the emergence of low-power IoT devices with cellular connectivity and the phase-out of 2G (with only T-mobile supporting 2G/GSM until 2020), everything is moving toward LTE and this has left many people scrambling to find better solutions.
…SIMCOM recently announced their new SIM7000A LTE CAT-M module at a developer’s conference. How exciting! The amazing part of all of this is that SIMCOM made it extremely easy to migrate from their 2G and 3G modules to this new module! The SIM7000-series use many of the same AT commands which minimizes the software development by miles! Also, Adafruit already has a wonderful FONA library on Github that can be used to introduce this new SIM7000 into the party!
NB-IoT is also available for many countries (but sadly not in the USA yet) simply by swapping out to a different SIM7000 module version. Luckily SIMCOM made it super easy to integrate this module because most of the AT commands are identical to previous version, and Adafruit has a wonderful library for their FONA 2G and 3G products. Check it out and help make this happen! You can view the latest code and design files here on my Github page: https://github.com/botletics/NB-IoT-Shield. Note: The hardware works great but software is still under development! I plan on launching an Indiegogo campaign when I get a fully-working prototype, so stay tuned for updates!”
This open-source design is fully-integrated to the hobbyist market for Arduino users all around the world.