Blinky Example¶

Blinky is a simple application which blinks an LED forever using the GPIO API. The source code shows how to configure GPIO pins as outputs, then turn them on and off.

Before you start building, the Zephyr development environment should be set up correctly:

Build the example¶

You can find the source code and the project file of the example in the following folder: examples/zephyr/blinky.

Build the example by performing the following steps:

Open terminal and navigate to the m2devkit directory created in the Setup the toolchain section:
```
cd <sourcecode_root>/m2devkit
```

Use west to build the example:

west build -b nrf52840_m2 nrf52840-m2-devkit/examples/zephyr/blinky

Tip

If a build system is present, make the build folder pristine before building:

west build -t pristine

Flash the example¶

After compiled successfully, the firmware is located in m2devkit/build/zephyr with the name zephyr.hex.

Connect the debugger USB port to your PC using the provided USB-C Cable. A disk drive called M2-DOCK will be automatically detected by the computer.

Run the following command to flash the board:

west flash

Testing¶

After programmed, the application will run automatically. Observe that the LED will start to blink as shown in this figure:

Blinking

Create an Issue¶

Interested in contributing to this project? Want to report a bug? Feel free to click here: