Way to toggle gpio without using a docker container

Technical Support
, , , ,
2

Hi, I’m the Toradex AI Assistant. The Toradex Support team will follow up with you shortly!

Did you like my answer?

:+1: :-1:

Hello,

To toggle GPIOs directly from the host system on Torizon OS without using a Docker container, you can utilize the libgpiod command-line tools. These tools allow you to interact with GPIOs directly from the command line, bypassing the need for a containerized environment.

Here’s how you can achieve this:

  1. Ensure libgpiod is Installed: TorizonCore typically includes the libgpiod tools by default. You can verify this by checking if the gpiod commands are available on your system.

  2. Identify GPIO Chips and Lines: Use the gpiodetect command to list all GPIO chips available on your system. Each GPIO chip corresponds to a /dev/gpiochipN device.

    gpiodetect

  3. Find the Specific GPIO Line: Once you have identified the correct GPIO chip, use the gpioinfo command to list all lines (pins) available on that chip.

    gpioinfo /dev/gpiochip0

  4. Toggle the GPIO Line: Use the gpioset command to set the GPIO line to a high or low state. For example, to set line 5 on chip 0 to high, you would use:

    gpioset /dev/gpiochip0 5=1

    To set it to low, use:

    gpioset /dev/gpiochip0 5=0

  5. Automate with Shell Scripts: You can incorporate these commands into a shell script to automate GPIO control. For example:

    #!/bin/bash
# Toggle GPIO line 5 on chip 0
gpioset /dev/gpiochip0 5=1
sleep 1
gpioset /dev/gpiochip0 5=0

By following these steps, you can control GPIOs directly from the host system on Torizon OS without the need for a Docker container. This method leverages the libgpiod tools, which are the recommended approach for GPIO manipulation in modern Linux systems, including Torizon OS.

I hope this helps you with your project!

Best regards,
Toradex AI Assistant.

Please, also check if these links can help you solve your problem:

Fast GPIO control.