AirPrime BX3105

Sierra Wireless | Bluetooth and Wi-Fi Module

The BX3105 development kit is a small form factor evaluation board, powered by USB. It exposes all the BX3105 pin interfaces via headers. The BX3105 development kit has a UART to USB converter running at 1Mb/s for direct connection of the UART to a PC. The BX3105 device supports Bluetooth Classic, BLE and Wi-Fi operation.  The board has a TLV320AIC3111 audio CODEC connected to the BX3105 via the I2S / I2C interface. The development kit also has a LSM6DS3TR 3D digital accelerometer and 3D digital gyroscope for motion sensing using the BX3105 integrated I2C support. Designers can make use of the integrated IP stack and MQTT software to speed IoT development.


  • Embedded TCP/IP and Bluetooth Stacks with simple UART interface for easy integration
  • Fully certified
  • Compact CF3® form factor for scalability across technologies including cellular
  • Industrial-grade
  • Secure device-to-cloud architecture with AirVantage®
  • Includes FREE unlimited firmware over-the-air (FOTA) upgrades
  • Secure Boot
  • Integrated antenna
  • Low Power


Bluetooth Specification Version 4.2
Wi-Fi Specification 802.11 b/g/n
RF Specifications

Frequency Bands: 2.4GHz

Maximum Data Rate: 100Mbps (UDP)

Embedded Software

Firmware: Pre-certified firmware, Secure boot

Audio: Digital Audio, I2S

  • UART: 1
  • I2C: 1
  • GPIO: 1
  • SPI: 1
Antenna Embedded antenna
Dimensions 9.5mm x 11.5mm 
Temperature Range Industrial Grade: -40°C / +85°C