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'''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.<br />
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== Summary ==<br />
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.<br />
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== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL15897 WSAL15897 – nRF52840 Bluetooth 5.0 Module, Small &amp; Stable]<br />
* [https://shop.jw-tech.eu/p/WSAL15951 WSAL15951 – nRF52840 Bluetooth 5.0 Evaluation Kit]<br />
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== Technical overview ==<br />
* Microcontroller: ARM Cortex-M4F @ 64 MHz, 1 MB flash, 256 kB RAM<br />
* Frequency band: 2.4 GHz; Bluetooth 5.0 with data rates up to 2 Mbps<br />
* Manufacturer-stated range: ~150 m open space, ~40 m indoor<br />
* On-board interfaces: UART, I2C, SPI, NFC antenna connector, TF card slot<br />
* Power: via USB or CR2032 battery (toggle switch)<br />
* On-board chips: CP2102 (USB-to-UART), RT9193-33 (level converter), buzzer, optical sensors<br />
* Indicators/controls: PWR LED, RXD/TXD LEDs, LED1–LED4, reset and user buttons<br />
* Dev environment: Keil MDK + Nordic DeviceFamilyPack, JLink driver (≥ V6.22 recommended), nRFx Command Line Tools for firmware flashing<br />
* SDK version referenced: SDK 15.2 (supports Bluetooth 5.0)<br />
* Available demos: GPIO LED, serial I/O, SPI loopback/OLED, I2C scan/BME280/MPU6050, NFC app launch, BLE slave/host/MESH<br />
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'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
nrfjprog -v<br />
</syntaxhighlight><br />
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== Notes and version constraints ==<br />
* Effective range depends heavily on environmental conditions; stated values are manufacturer claims without independent verification.<br />
* JLink driver version must be ≥ V6.22, otherwise the tool will not recognize the debugger.<br />
* Keil requires a license for projects exceeding 256 kB; without a license compilation is limited.<br />
* Bluetooth MESH demos additionally require installing SEGGER Embedded Studio for ARM 4.10a.<br />
* Some Bluetooth experiments use simulated data (e.g., heart rate, bicycle speed); real measurements require external sensors.<br />
* The exact pin assignment of jumpers/solder joints should be verified against the schematic before modification.<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/NRF52840_Eval_Kit NRF52840 Eval Kit - Waveshare Wiki]<br />
* Source revision: 106121<br />
* Captured: 2026-08-31T03:11:23+00:00<br />
* SHA-256: <code>ff1e7844f4c15cb00f81ce887aa95bf1d49ecd4755e15a871a00fd66eb28e077</code></div>JWTechPublisher