Use GPIO from Arduino Header using Zephyr on nrf52840DK

RE: Use GPIO from Arduino Header using Zephyr on nrf52840DK

btemesi — Sun, 09 Mar 2025 09:58:47 GMT

Hi,

When you are defining a new node, you can use the gpio-map such as:

`<&arduino_header 16 GPIO_ACTIVE_LOW>;`

Where, 16 is the list number followed by the flag(s). I wouldn't re-define it (so no &gpio0 4).

You can find more documentation here:

https://docs.zephyrproject.org/latest/hardware/porting/shields.html

which also points to documentation:

github.com/.../devicetree-basics.rst

and an example here:

<your-sdk-location>/<sdk-version>/zephyr/samples/sensor/bme280/arduino_spi.overlay

This is a similar sensor (BME280) example as in the dev Academy - nrf Connect SDK Fundamentals

I hope this helps,

Barna

RE: Use GPIO from Arduino Header using Zephyr on nrf52840DK

Jeffrey Haynes — Tue, 04 Apr 2023 00:25:35 GMT

This is a terrible answer. I've been doing zephyr programming for over a year and this stuff is still not straightforward. Please just answer the question next time or if you don't know then say nothing.

RE: Use GPIO from Arduino Header using Zephyr on nrf52840DK

Priyanka — Tue, 25 Jan 2022 15:05:00 GMT

Hi,

As a beginner, I suggest you take a look at our Getting Started Guide. This explains in detail (in 4 parts) about the nRF Connecct SDK and Zephyr Programming basics.

Also, you can refer the GPIO nexus nodes.

Regards,

Priyanka