BM833A, BM833AF, nRF52811 Long Range Bluetooth 5.1, Thread, Zigbee Module


BM833AF, BM833A


BM833A and BM833AF are Bluetooth Low Energy, BLE 5.1 modules using Nordic nRF52811 SoC with integrated high performance PCB trace antenna.

Differences between modules:

  • Size of BM833A is 10.2x15x1.9 mm; BM833AF is 10.2 (15 antenna area) x 20.6x1.9mm

  • Range between two BM833As is estimated at 340 meters at 1Mbps; between two BM833AF is 760 meters.

BM833A Series are pin to pin compatible with BM832 Series nRF52810 modules. Three main differences:

  1. Supports BLE 5.1 Direction Finding.

  2. Supports BLE 5 CODY PHY at 500 Kbps and 125 Kbps for longer range

  3. Supports Thread and Zigbee radio protocols.


  • Nordic nRF52811 QFAA with ARM Cortex M4 (no Floating Point Unit)

  • 192 KB flash, 24 KB RAM

  • Complete RF solution with integrated antenna

  • Bluetooth range, estimated: 760 meters at 1Mbps and 1400 meters at 125 Kbps with at least 60% Fresnel zone clearance.

  • 128-bit AES HW encryption

  • Serial Wire Debug (SWD)

  • Nordic SoftDevice Ready

  • Over-The-Air (OTA) firmware update

Up to 32 GPIOs, firmware configurable and Peripherals

  • 12 bit/200KSps ADC, 8 configurable channels with programmable gain

  • 64 level comparator

  • 15 level low power comparator with wake-up from system OFF mode

  • Temperature sensor

  • 3x 4-channel pulse width modulator (PWM) units with EasyDMA

  • Digital microphone interface (PDM)

  • 5x 32 bit timers with counter mode

  • Up to 3x SPI Master/Slave with Easy DMA

  • Up to 2x I2C compatible 2-wire master/slave

  • I2S with EasyDMA

  • UART (CTS/RTS) with EasyDMA

  • Programmable peripheral interconnect (PPI)

  • Quadrature Demodulator (QDEC)

  • AES HW encryption with EasyDMA

  • Autonomous peripheral operation without CPU intervention using PPI and Easy DMA

  • 3x real time counter (RTC)


  • Operation voltage: 1.7V to 3.6V

  • Peak current: 4.6 mA RX, 4.6 mA TX at 0 dBm.

  • 0.3 uA OFF mode, 1.1 uA idle

RF Performance

  • RX sensitivity: -97 dBm

  • TX power: -20 to +4 dBm in 4 dB steps


  • Operation Temperature: -40°C to +85°C

  • Integrated shield to resist EMI

  • Evaluation board: EV-BM833A and EV-BM833AF

  • Availability: Production in 09/2019


  • FCC ID:

  • IC (Industrial Canada) ID:

  • Europe:

  • Japan:

  • Australia:

  • QDID:

Evaluation Board EV-BM833A, BM833AF

EV BT832 AT SetUp.jpg

Order Products

Please contact Fanstel for volume discount and production lead time.

BM833A, nRF52811 module

nRF52811 Bluetooth 5.1, Thread, Zigbee module.

1000 pcs price: $3.32 each

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BM833AF, Long range nRF52811 module

nRF52811 Bluetooth 5.1, Thread, Zigbee module.

1000 pcs price: $3.67 each

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EV-BM833A, Evaluation board for BM833A

Evaluation board for BM833A, Bluetooth 5.1, Thread, Zigbee module

Preorder for 8/25/2019 delivery

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EV-BM833AF, Evaluation board for BM833AF

Evaluation board for BM833AF, Long range Bluetooth 5.1, Thread, Zigbee module

Preorder for 8/25/2019 delivery

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