The Bluetooth module wants 3.3v logic levels so that is taken into account. The image above shows a buffer chip doing the conversion, but the Fritzing schematic on the post uses a voltage divider.

The GTI-ATM3330e Bluetooth 5.3 module from GlobalScale integrates Atmosic Technologies’ energy-harvesting technology for battery-free designs. GlobalScale, an original design manufacturer (ODM), ...

Embedded World – Quectel Wireless Solutions, a global IoT solutions provider, is pleased to announce the launch of the HCM511S high-performance MCU Bl ...

We’re pleased then to see the work of [ElectroBoy], who has combined something of both approaches by reverse engineering the pinout of a Chinese Bluetooth audio chip with minimal datasheet, and ...

Bluetooth is what your Mac uses to connect to wireless devices like keyboards, mice, trackpads, speakers, and other peripherals. Generally, it's ...