BLE Sniffer with nRF52840
The Bluefruit LE Sniffer allows you to capture traffic between two Bluetooth Low Energy devices in a passive manner (meaning it isn't involved directly in the connection itself). This mini guide will show you how to do that with an Adafruit nRF52840 board.
Using WebUSB with Arduino and TinyUSB
WebUSB is the perfect way to have unidirectional or bidirectional interaction with USB devices, especially if you are tired of having to load drivers or perform awkward keyboard emulation. Adafruit's TinyUSB brings the interaction to compatible USB connected microcontrollers.
Adafruit nRF52 Pro Feather with Mynewt
The Adafruit Feather nRF52 Pro ships pre-programmed with the Mynewt serial bootloader that allows you to flash firmware to the device directly from the command-line using the on-board USB Serial converter and the 'newtmgr' tool, so you can get started right away with no additional hardware required. For more advanced debugging, however, you can use a Segger J-Link and the on-board SWD debug connector, which gives you access to a more powerful set of development tools and options.
Introducing the Adafruit WICED Feather WiFi
This guide will show you everything you need to know to setup and use the new Adafruit WICED Feather. Easy and complete WiFi access, plus the processing power of a modern ARM Cortex M3 processor, all from the Arduino IDE you know and love.