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Analysis of NRF52832 Bluetooth LE Sniffer May 08, 2020

Nordic launched nRF52832 Sniffer for BLE broadcast packets, which is a very convenient tool for learning and debugging BLE protocols. It can parse data packets from different protocol layers in real-time, so that it can check the frame header and the data carried effectively. It provides detailed information about data packets, Received Signal Strength Indicator (RSSI), Link Quality Indicator (LQI), channel, etc.

nRF Sniffer


At the same time, nRF52832 Sniffer also supports the protocol parsing of the captured BLE data.


nRF52832 Sniffer can be used to get the specific operation of the protocol and the types of data packets sent back and forth between devices. It is also used as a debugging tool to find out what happens when the protocol does not meet expectations.

N52832QFAAB01652FD

The nRF52832 Sniffer uses Wireshark as the front end and supports multiple operating systems such as Windows, Linux, and Mac OS.


RF-DG-32A is a USB Donlge Sniffer based on a nRF52832 chip launched by RF-star, which supports major wireless standards, including Bluetooth Low Energy (BLE) running on Nordic nRF52832 multi-protocol system-level SoC. RF-DG-32A can provide a high data throughput communication interface through the USB device controller and can be directly connected to the computer.


The nRF52832 Sniffer RF-DG-32A launched by RF-star adopts CP2102 and nRF52832 dual chips, and the nRF52832 Sniffer integrated Silicon Labs industrial-grade USB to TTL chipset CP2102 which supports independent LED indication during transmission and receiving. The USB interface uses a CP2102 chip, transfers to TTL through USB, and then connects to the nRF52832 chip through UART.


nRF52832 Sniffer RF-DG-32A adopts CP2102 and nRF52832 chips


Is the dual-chip design redundant? Is it better to use nRF52840 with USB support? Although nRF52840 supports full-speed USB, nRF52832 plus CP2102 chip can achieve the same USB communication function, and the overall chip price is lower than nRF52840.


RF-DG-32B nRF52832 USB Dongle Sniffer

nRF52832 USB Dongle Sniffer supports BLE 5.0 protocol and is backward compatible with BLE 4.2. RF-DG-32A reserved program burn pad, which supports secondary development.


nRF52832 SoC is a powerful and highly flexible ultra-low power multi-protocol SoC, which is very suitable for Bluetooth Low Energy, Antenna, and 2.4GHz ultra-low power wireless applications.


·  ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz
·  Data watchpoint and trace (DWT), embedded trace macrocell (ETM), and instrumentation trace macrocell (ITM)
·  Serial wire debug (SWD)
·  2.4 GHz transceiver
·  -96 dBm sensitivity in Bluetooth® low energy mode
·  1 Mbps, 2 Mbps supported data rates
·  TX power: -20 to +4 dBm in 4 dB steps
·  Supply voltage range 1.7 V ~ 3.6 V
·  Fast wake-up using 64 MHz internal oscillator
·  Type 2 near field communication (NFC-A) tag with wakeup-on-field and touch-to-pair capabilities
·  12-bit, 200 ksps ADC - 8 configurable channels with programmable gain
·  64 level comparator
·  32 general purpose I/O pins
·  3 x 4-channel pulse width modulator (PWM) units with EasyDMA
·  Digital microphone interface (PDM)
·  5 x 32-bit timers with counter mode
·  Up to 3 x SPI master/slave with EasyDMA
·  Up to 2 x I2C compatible 2-Wire master/slave
·  UART (CTS/RTS) with EasyDMA
·  AES HW encryption with EasyDMA


If you are interested in nRF sniffer tutorial, please click here to download the guide of RF-DG-32B Dongle sniffer.

Developers can directly see the status of wireless devices through the PC desktop without purchasing a complete development kit, which further simplifies the application design and program development process. nRF52832 Sniffer can be very convenient for packet analysis of BLE data.


RF-star has been focusing on the Bluetooth field for over one decade and has rich experience in solution design. RF-star's Nordic Sniffer solution has performed well.


RF-star is a core supplier of wireless RF solutions and low-power RF devices with an excellent industry reputation and credibility. Its products include rich Nordic series products, such as nRF52832. The professional technical team provides you with professional customized services. For more Nordic solutions, please don't hesitate to contact at info@szrfstar.com.

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