BLE + Arduino board under Arduino AtHeart program Works with Nordic Bluetooth Smart SDK for Arduino Software development using Arduino IDE Over-the-Air download sketch Supported by our free Android App and iOS App

Blend Micro is our first integrated developement board, we have "blend"ed Arduino with Bluetooth 4.0 Low Energy (aka BLE or Bluetooth Smart) into a single board. It is targeted for makers to develop low power Internet-Of-Things (IoT) projects quickly and easily.

The micro-controller unit (MCU) is Atmel ATmega32u4 and the BLE chip is Nordic nRF8001. Blend Micro runs as BLE peripheral role only, it allows BLE central role devices to establish connection with.

Current supported BLE central devices:

iOS 7

  • iPhone 4s
  • iPhone 5 (all models)
  • iPod touch 5
  • iPad 3/4/mini/Air

Android 4.3 or above (4.4 recommended for stability) with Bluetooth 4.0 hardware support

  • Nexus 4
  • Nexus 7
  • (please report any other Android devices supported)

Windows 8.1 with built-in Bluetooth 4.0 or USB dongle

Mac OSX 10.9.2 with built-in Bluetooth 4.0 or USB dongle

Linux with BlueZ 5.1 with built-in Bluetooth 4.0 or USB dongle



MicrocontrollerAtmel ATmega32u4
Wireless ChipNordic nRF8001
Operating Voltage3.3V
Input Voltage
  • 5V (USB)
  • 3.3-12V (VIN)
  • Note: Use either one power source at a time.
Clock Speed8MHz
  • Bluetooth 4.0 Low Energy
  • micro-USB
  • Serial (TX/RX)
  • I2C
  • SPI
Flash Memory32KB (of which 4 KB used by bootloader)
Dimensions43.6 x 18.4 x 4.3mm (83 x 58 x 25mm with packaging)
Weight4g (19g with packaging)
Power Consumption2mA (average - using Interrupt mode)
I/O Pins24


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An Open Software Ecosystem

We recognize that each project has different requirements and goals. As such we have worked to provide as much flexibility to developers as possible. Our quad-core solution allows us to run numerous software solutions. From the selection of algorithms, NLP services, smart assistants, operating systems, and more, we wish to support our users. If you have suggestions on what services you would like to see us officially support let us know on our forums, or if you enjoy the work yourself, submit a merge request to our github.

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