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I turned the Arduino Uno Q into a streaming server for my Bluetooth speakers

The Arduino Uno Q is a powerful single-board computer, packing a Qualcomm QRB2210 alongside an STM32. The board itself runs Debian, and while you can use the Arduino App Lab to build and deploy ...
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Hands-on review: HM-10 BLE module and its mysterious clones

The HM-10 offers only edge connections, so it usually comes mounted on a breakout board that extends requisite connections to breadboard-friendly male-header pins (which is how mine came from eBay).