Adafruit-Bluetooth-Bluefruit-Low-Energy-Breakout-Board-BLE-4-0-Adafruit-1697-P-The-Adafruit-Bluefruit-LE-n RF8001-breakout-board-acts-as-a-simple-serial-link-between-your-microcontroller-&-a-Bluetooth-host-device-By-handling-the-Bluetooth-communication-part-this-board-allows-you-to-focus-on-your-own-software-&-hardware-Control-your-project-from-an-app-on-your-smartphone-or-tablet-including-reading-the-microcontroller-analogue-&-digital-inputs-The-Bluetooth-Low-Energy-isn-t-as-encum