ANNA-B412 (u-connect)

Stand-alone Bluetooth 5.1 Low Energy module

Ultra-compact module for harsh professional environments

  • Ultra compact SiP (6.5 x 6.5 x 1.2 mm) with integrated antenna
  • Bluetooth 5.1, including Bluetooth long range
  • u-connectXpress software for accelerated time to market
  • Superior security functionality with secure boot
  • Extended temperature range up to 105 °C
  • Global certification
Short Range






Product variants


Bluetooth Low Energy stand-alone SiP u-connect SW 6.5x6.5 mm, 500 pcs/reel
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Product variantsANNA-B412
Bluetooth qualificationsv5.1 (Bluetooth Low Energy)
Chip insidenRF52833
Bluetooth low energy output power EIRP [dBm]9
Maximum range [m]800
Bluetooth throughput [Mbit/s]0.8
Maximum number of connections8
Bluetooth profiles and servicesBluetooth GATT, u-blox low energy serial port service
Operation modeStandalone module u-connect
UART x 2
GPIO x 19
Maximum supply [V]3.6
Minimum supply [V]1.7
Maximum temperature [°C]105
Minimum temperature [°C]-40
AT command support
Bluetooth high speed (LE 2M PHY)
Bluetooth long range (coded PHY)
Bluetooth mesh
Direction finding (AoA/AoD)
Extended data mode protocol
Low Energy Serial Port Service
Secure boot and updates
Simultaneous GATT server and client
AntennasAntenna pin, Internal chip antenna
Dimensions [mm]6.5 x 6.5 x 1.2
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