Popular and Low Cost

A Maker’s favorite, the famous ATMega32u4 – a low-power, programmable microcontroller with built in USB support.

Built-In Wireless

This Arduino compatible board has wireless built in – offering longer reach and up to 4x the distance of WiFi using 433, 869 and 915 MHz on-board radios.

Maker Friendly

Supports prototyping on standard breadboards so you can design to your heart’s desire.

World-wide Appeal

Based on the famous, open hardware Arduino platform – works out of the box with all Arduino prototyping IDE and tools to help speed up making and playing. 13 digital and 6 analog IO pins.


Tested and built to support the open source MySensors platform – focused on DIY home automation and Internet of Things.


Designed to be battery powered and portable – the NODii supports high performance LiPo battery charging circuits so you can design a truly wireless node.


  • Processor: ATMega32u4
  • Power Supported: 5V and 3.3V (processor runs on 3.3V @ 8MHz)
  • LiPo Battery Charger: On board – SPX3819
  • LiPo Connector: 2 Pin battery connector (footprint on backside of PCB)
  • I/O PINs: All Pins
    • 13 Digital I/O Pins
    • 6 Analog I/O Pins
  • Flash:  32 KB
  • Clock Speed:  8 MHz
  • Mounting Holes: 4
  • Pin Headers: Included (can fit larger machine pin headers)
  • Size: 51mm (2 in) x 25.4mm (1 in)

RADIO FEATURES (included or sold separately)

  • Chipset: HopeRF RFM69
  • Frequency: 433MHz, 868MHz, or 915MHz
  • Power Output: 13 dBm (RFM69W) or 20 dBm (RFM69HW)
  • Antenna Support: U.FL (footprint on backside of PCB)