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 ...
ATMegaZero ESP32- S2, showing optional color-coded 40 ... it has some neat features like a connector for inexpensive SSD1306 and SH1106-based OLED displays. Being able to use existing accessories ...
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