nRF52840-MDK

The nRF52840-MDK (not to be confused with its sibling, the nRF52840-MDK-USB-Dongle) is an open-source, micro development kit for IoT applications based on the Nordic Semiconductor nRF52840 SoC chip.

Interfaces

Interface Hardware Supported TinyGo Support
GPIO YES YES
UART YES YES
SPI YES YES
I2C YES YES
ADC YES YES
PWM YES YES
Bluetooth YES YES

Machine Package Docs

Documentation for the machine package for the nRF52840-MDK

Flashing

There are two options to flash the nRF52840-MDK board.

You must install OpenOCD before you will be able to flash the nRF52840-MDK board with your TinyGo code. You should check OpenOCD Documentation for installation and configuration instructions.

Once you have installed it correctly, you will be able to flash the nRF52840-MDK board with your TinyGo code.

  • Plug your nRF52840-MDK into your computer’s USB port.
  • Build and flash your TinyGo program using tinygo flash -target=nrf52840-mdk

Programs can be loaded onto the nRF52840-MDK board using the nrfjprog command line utility program.

First install the J-Link Software and Documentation Pack from Segger: https://www.segger.com/downloads/jlink/#J-LinkSoftwareAndDocumentationPack

Then install the nRF5x Command-Line Tools: https://docs.zephyrproject.org/latest/guides/tools/nordic_segger.html#nrf5x-command-line-tools-installation

Once you have installed both of these correctly, you will be able to flash the nRF52840-MDK board with your TinyGo code.

  • Plug your nRF52840-MDK into your computer’s USB port.
  • Build and flash your TinyGo program using tinygo flash -target=nrf52840-mdk -programmer command

Notes

Bluetooth support is now available for nRF52840 boards. See https://github.com/tinygo-org/bluetooth for more information.