Bluegiga Legacy Modules (Classic)

Bluegiga Bluetooth Basic Rate/Enhanced Data Rate (BR/EDR) and Bluetooth 4.1 (dual mode) modules are completely integrated, certified and high-performance radio frequency products that include all the necessary Bluetooth BR/EDR profiles for data and audio applications. The latest module is BT121, combining BR/EDR with Bluetooth Low Energy. For new Bluetooth 5 designs, we recommend our latest BGM and BGX Bluetooth Modules, based on our EFR32BG SoCs.

Hardware + software
Completely integrated
Globally certified

Bluegiga Classic Module Common Specs


  • Bluetooth 4.1 Smart Ready compliant
  • Up to 6 x BR/EDR connections
  • Up to 7 x BLE connections1 x BR/EDR + 7 x BLE connections simultaneously
  • SPP, iAP2, HID and GATT over BR Bluetooth profiles
  • Any Bluetooth Smart profile
  • 1000 kbps throughput over SPP
  • 200 kbps throughput over iAP2
  • 100 kbps throughput over BLE

Hardware Features:

  • UART host interface
  • SPI, UART and I2C peripheral interfaces
  • GPIO and ADC
  • RTC
  • Supply voltage: 2.2 V to 3.6 V
  • Dimensions: 11.0 mm x 13.9 mm x 2.2 mm


  • Integrated antenna
  • TX Power: +12 dBm with Bluetooth BR/EDR
  • TX Power: +8 dBm with Bluetooth LE
  • RX Sensitivity: -96 dBm
  • 200-400 meter LoS range

MCU Features:

  • ARM Cortex-M0
  • 48 MHz
  • 16 kB RAM
  • 128 kB flash

Software Features:

  • Integrated Bluetooth Smart Ready Stack
  • BGAPI™ serial protocol API over UART for modem usage
  • BGLIB™ host API which implements BGAPI protocol
  • BGScript scripting language for standalone usage
  • Profile Toolkit™ for creating GATT based services


  • Temperature range: -40° C to +85°C
  • Bluetooth
  • CE
  • FCC
  • IC
  • Japan
  • South Korea


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Part Number TX Power (dBm) RX Sensitivity (dBm) Typical Range Dimensions (mm)

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