The RedBear Duo is a thumb-sized IoT development board with built-in Wi-Fi, Bluetooth 4.1 (dual mode), and Particle cloud connectivity. Everything you need to prototype connected devices is on board — just add your idea.
Powered by an STM32F205 ARM Cortex-M3 at 120 MHz with Broadcom BCM43438 wireless, the Duo supports multiple development environments including Arduino IDE, Particle Web IDE, Broadcom WICED SDK, and JavaScript. With the optional RBLink expansion board, you can connect Seeed Grove modules without any soldering.
Key Features
- Wi-Fi + Bluetooth – BCM43438 combo chip with 802.11n (2.4 GHz) and Bluetooth 4.1 (Classic + BLE) on a shared antenna
- Cloud Ready – Built-in Particle cloud service for remote management and OTA updates
- Multiple Dev Environments – Arduino IDE, Particle Web IDE, Broadcom WICED SDK, and JavaScript
- 18 I/O Pins – Flexible pin configuration for sensors, actuators, and peripherals
- Integrated Antenna – On-board chip antenna with option to connect an external antenna
- Grove Compatible – Attach Seeed Grove modules via the optional RBLink expansion board (no soldering required)
- Headers Pre-Soldered – Ready to use on breadboards straight out of the box
Specifications
- Processor – STM32F205 ARM Cortex-M3 @ 120 MHz
- SRAM – 128 KB
- Flash – 1 MB (MCU) + 2 MB on-board SPI flash
- Wireless – Broadcom BCM43438: Wi-Fi 802.11n (2.4 GHz) + Bluetooth 4.1 Dual Mode
- Antenna – Integrated chip antenna (external antenna connector available)
- I/O Pins – 18
- Status Indicator – RGB LED
- Dimensions – 40 × 20 × 13 mm
Ideal For
- IoT prototyping and connected device development
- Wi-Fi and Bluetooth enabled projects
- Cloud-connected sensor networks
- Wearable electronics
Package Contents
- 1× RedBear Duo (with headers soldered)
Resources
The RedBear Duo appears in the following collections:
SKU RB-REDBEARDUO
by Little Bird
