Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing power and I/O you get. But if you need something really small, like ...
Avnet Silica has an NB-IoT Sensor Shield compatible with the Arduino UNO R3 connector layout. As a multi-mode connectivity board, it supports both the LTE Cat M1 and NarrowBand-IoT (LTE Cat.NB) air ...
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