T he ESP32 is a beloved microcontroller from Espressif, offering quite a lot in a small, very cheap package. Yet as you may already know, there are lots of different kinds of ESP3 ...

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A voice-controlled vehicle. A shape-shifting probe designed to squeeze inside aircraft. A blood-suctioning surgical assistant ...

Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — either via Bluetooth or Wi-Fi.