Taking a break

 We're taking a break moving shop and hope to be back soon. We hope to start shipping orders in Nov 2018. 

Duo is a thumb-size development board made to simplify the building process of Internet of Things (IoT) products. Everything you need is built into the Duo. It contains WiFi, BLE and Cloud, all in a compact form factor that makes it ideal for your first prototype, a finished product, and everything in between.

With the help of RB Link, a RedBear expansion board, you can attach add-on modules without any soldering at all. You can get your prototype up and running in no time.


  • Both Wi-Fi and BLE capabilities
  • Free Particle io Cloud Services
  • Arduino, JavaScript and Python support (WiFi & BLE only)
  • Broadcom WICED SDK (Wi-Fi & Bluetooth Dual Mode)
  • Free Android and iOS Apps
  • Integration with RBLink and work with Grove system


  • STMicroelectronics STM32F205 ARM Cortex-M3 @120MHz, 128 KB SRAM and 1MB Flash
  • Broadcom BCM43438 Wi-Fi 802.11n (2.4GHz only) + Bluetooth 4.1 (Dual Mode) combo chip
  • On-board 16 Mbit (2 MB) SPI Flash
  • Integrated chip antenna with the option to connectexternalantenna
  • 18 I/O pins
  • RGB status LED
  • Small single-sided PCB for easy mounting on other PCB boards
  • Duo comes with headers soldered
  • 20.5mm x 39mm

Parts List

  • 1 x RedBear DUO - Wi-Fi + BLE IoT Board
  • For libraries and documents, please visit GitHub page.
  • For technical discussion, please come to Forum.
  • For projects that you would like to share with the community, please visit Recipe.

RedBear DUO - Wi-Fi + BLE IoT Board

  • Brand: Red Bear Lab
  • Product Code: REDBEAR-DUO
  • Reward Points: 28
  • Availability: Out Of Stock
  • £34.25

  • Ex Tax: £28.55
  • Price in reward points: 300

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