ALMA-B2 series

Stand-alone Bluetooth LE modules

Wireless MCU modules for low power and low latency applications

  • Built-in Edge AI Accelerator
  • Professional grade modules supporting Thread, Zigbee, and Matter
  • High performance ARM Cortex-M33 for demanding applications
  • Qualified against Bluetooth® Core 6.0 including Channel Sounding for accurate ranging
  • Variants with antenna pin and embedded antenna
  • Global certification
short_range
standard

Standard

professional

Professional

automotive

Automotive

Product variants

ALMA-B201

Professional grade Bluetooth LE module with nRF54LM20A (open CPU) and pin for external antenna.

Under development

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ALMA-B206

Professional grade Bluetooth LE module with nRF54LM20A (open CPU) and internal PCB antenna.

Under development

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ALMA-B211

Professional grade Bluetooth LE module with nRF54LM20B (open CPU) and pin for external antenna.

Under development

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ALMA-B216

Professional grade Bluetooth LE module with nRF54LM20B (open CPU) and internal PCB antenna.

Under development

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Related links
Product selection
Product description
Documentation & resources
Product variantsALMA-B201ALMA-B206ALMA-B211ALMA-B216
Bluetooth qualifications6.0 (Bluetooth Low Energy)
Chip insidenRF54LM20AnRF54LM20B
Bluetooth low energy output power EIRP [dBm]10
Bluetooth throughput [Mbit/s]1.4
Maximum Bluetooth range [m]1400
Bluetooth profiles and servicesBluetooth GATT
Operation modeStandalone module open CPU
MCUArm Cortex-M33 at 128 MHz
RAM [kB]512 kB
UART
USB
SPI
I2C
NFC
PWM
Maximum supply [V]3.6
Minimum supply [V]1.7
Maximum temperature [°C]85
Minimum temperature [°C]-40
802.15.4 Thread / Zigbee
Arm TrustZone-M
Bluetooth Channel Sounding
Bluetooth high speed (LE 2M PHY)
Bluetooth long range (coded PHY)
Matter
Secure boot and updates
Neural Processing Unit (NPU)-
AntennasAntenna pinInternal PCB antennaAntenna pinInternal PCB antenna
Dimensions [mm]10.4 x 11.2 x 1.910.4 x 14.3 x 1.910.4 x 11.2 x 1.910.4 x 14.3 x 1.9
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