![Feather 32U4 Bluefruit Le Feather 32U4 Bluefruit Le](https://tinkersphere.com/8513-large_default/feather-32u4-bluefruit-le.jpg)
Feather 32U4 Bluefruit Le
The Feather 32U4 Bluefruit Le - Loose Headers is an 'all-in-one' Arduino-compatible + Bluetooth Low Energy with built in USB and battery charging. It is a 32u4 microcontroller with a BTLE module same as the Arduino Nano 33 BLE for $26.50.