That interface doesn’t have to be special, and [Dakhnod] is here to show us that it can be done with an ESP32 microcontroller through its USB interface ... s made a Bluetooth dongle in this ...
Unless, of course, you buy a bulky dongle, and that costs $40, by the way. And yes, Bluetooth ... are supposed to be thin and portable. Apple still ships the iPhone with a USB-A to Lightning ...
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