WSAL15897 – NRF52840 Eval Kit/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The nRF52840 Eval Kit is a Bluetooth 5.0 development board with an onboard nRF52840 core module, Arduino and Raspberry Pi compatible GPIO headers, USB-UART via CP2102, and an SWD debug port. It supports bare-metal peripheral demos (GPIO, UART, SPI, I2C, NFC) and Bluetooth experiments including MESH.

Related products at JW Tech

Technical overview

Microcontroller: ARM Cortex-M4F @ 64 MHz, 1 MB flash, 256 kB RAM
Frequency band: 2.4 GHz; Bluetooth 5.0 with data rates up to 2 Mbps
Manufacturer-stated range: ~150 m open space, ~40 m indoor
On-board interfaces: UART, I2C, SPI, NFC antenna connector, TF card slot
Power: via USB or CR2032 battery (toggle switch)
On-board chips: CP2102 (USB-to-UART), RT9193-33 (level converter), buzzer, optical sensors
Indicators/controls: PWR LED, RXD/TXD LEDs, LED1–LED4, reset and user buttons
Dev environment: Keil MDK + Nordic DeviceFamilyPack, JLink driver (≥ V6.22 recommended), nRFx Command Line Tools for firmware flashing
SDK version referenced: SDK 15.2 (supports Bluetooth 5.0)
Available demos: GPIO LED, serial I/O, SPI loopback/OLED, I2C scan/BME280/MPU6050, NFC app launch, BLE slave/host/MESH

Commands and examples – verify before use:

nrfjprog -v

Notes and version constraints

Effective range depends heavily on environmental conditions; stated values are manufacturer claims without independent verification.
JLink driver version must be ≥ V6.22, otherwise the tool will not recognize the debugger.
Keil requires a license for projects exceeding 256 kB; without a license compilation is limited.
Bluetooth MESH demos additionally require installing SEGGER Embedded Studio for ARM 4.10a.
Some Bluetooth experiments use simulated data (e.g., heart rate, bicycle speed); real measurements require external sensors.
The exact pin assignment of jumpers/solder joints should be verified against the schematic before modification.

Source and revision record

NRF52840 Eval Kit - Waveshare Wiki
Source revision: 106121
Captured: 2026-08-31T03:11:23+00:00
SHA-256: ff1e7844f4c15cb00f81ce887aa95bf1d49ecd4755e15a871a00fd66eb28e077