Hello Forum Browsers!
Got another guide for yall, this time we are looking at Walter - a premium ESP32 board with GPS and cellular capabilities. It has LTE and NB-IOT capabilities as well as great documentation and library support. It really is a great board to dive into the world of cellular and microcontrollers, and we make a cool little GPS tracker project with it. Check it out: “Getting Started With Walter | An ESP32 With 4G/5G and GPS!”
I understand Walter uses ESP32 with a Sequans GM02SP modem.
While the board is Cat‑M1/NB-IoT capable, I couldn’t find any documentation confirming whether SMS is supported and exposed via AT commands (e.g., AT+CMGR, AT+CNMI, +CMTI) on the current firmware.
Hey @Callum180427,
We didn’t find anything in the documentation about it either, and I think I remember seeing the devs make a comment on YouTube video confirming it didn’t.
A bit unfortunate as it would make an already good board great, it is possible to use an SMS API provider, but that might get expensive really quickly depending on your project.
Hope this helps!
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