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CoffeeCaller: A Custom Mesh-Networked PCB
CoffeeCaller turns the office coffee break into a custom mesh-networked electronics project. See how an ESP32 prototype evolved into an nRF52840 board running Zephyr and OpenThread.
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Our new "LPWAN Decoded" Technical Brief cuts through the specifications and marketing claims to compare LoRaWAN, Sigfox, NB-IoT and LTE-M fr...
A faulty “donut” antenna shipped with an ESP32-based ATS-Mini receiver was wired to cancel its own signal. Rewiring the loop fixed it and do...
Wireless alarms are everywhere: homes, businesses, and public facilities. But what happens when someone deliberately blocks their signal? Th...
