BT833AF, nRF52811 Long Range Bluetooth 5.1 Module




BT833AF is a Bluetooth Low Energy, BLE 5.1 module using Nordic nRF52811 SoC with an integrated high performance PCB trace antenna.

Size of module is 15x20.8x1.9mm. It has 16 castellated pins for applications needing limited number of GPIOs. Additional 24 LGA (Land Grid Array) pins provide access to all nRF52810 GPIO pins. 

BT833AF is pin to pin compatible with BT832AF, an nRF52810 module. 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 1500 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


  • Sizes: 14x20.8x1.9mm

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

  • Integrated shield to resist EMI

  • Evaluation board: EV-BT833AF

  • Availability: sample in April 2019


  • FCC ID:

  • IC (Industrial Canada) ID:

  • Europe:

  • Japan:

  • Australia:

  • QDID:

Evaluation Board EV BT833AF

EV BT832 AT SetUp.jpg

Order Products

Please contact Fanstel for volume discount and production lead time.

BT833AF, Long Range nRF52811 module

long range, nRF52811 module.

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EV-BT833AF, Evaluation board for BT833AF

Evaluation board for BT832F, long range Bluetooth 5 module

Preorder for 5/15/2019 delivery

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