The latest is the TTGO T-Call, an ESP32 breakout board that also has a cellular modem. Yes, it’s only a 2G modem, but that still works in a lot of places, and the whole thing is $15. On board ...

Framework encourages the development of new modules, which is something [Spacehuhn] has taken on with an ESP32-S3 development board. The board itself is what you’d expect, the ESP is joined by a ...