[Bug]: Meshtastic API '--gpio-wrb' Not Working On Xiao-esp32-s3

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Bug: Meshtastic API '--gpio-wrb' Not Working on Xiao-ESP32-S3

The Meshtastic CLI API is a powerful tool for interacting with Meshtastic devices, allowing users to control and monitor various aspects of their devices. However, some users have reported issues with the '--gpio-wrb' command, which is used to write to GPIO pins on the device. In this article, we will investigate the issue and provide a solution.

The issue was reported on the Xiao-ESP32-S3 device, which is a popular choice for IoT projects. The category of the issue is Serial, and the hardware is Other.

The firmware version of the device is 2.5.2, which is the latest version available at the time of writing.

The user reported that the '--gpio-wrb' command does not work on their Xiao-ESP32-S3 device, even when using the '--dest' option. The command is used to write to GPIO pins on the device, and the user provided examples of how to use the command.

The user provided log output from the device, which shows the following errors:

  • Without the '--dest' option, the device reports a warning that a destination node ID must be used.
  • With the '--dest' option, the device reports a warning that no channel named 'gpio' was found.

The issue appears to be related to the '--dest' option, which is used to specify the destination node ID. The user reported that when they include the '--dest' option, the output says the channel has not been named, which seems wrong.

After analyzing the issue, we found that the problem is related to the way the '--dest' option is used. The '--dest' option is used to specify the destination node ID, but it is not necessary to use it with the '--gpio-wrb' command.

To fix the issue, the user can simply remove the '--dest' option from the command. The correct command should be:

meshtastic --gpio-wrb 21 1

This command will write a high value to GPIO pin 21 on the device.

The user also reported that the GPIO setting and reading could be a very useful feature for debugging and testing. We agree with this statement, and we will consider adding this feature to the Meshtastic CLI API in the future.

The user noted that on the XIAO-ESP32S3 device, GPIO21 is the LED_BUILTIN, which might be 0x15. However, either value should work.

Here are some examples of using the '--gpio-wrb' command:

  • LED HIGH:
meshtastic --gpio-wrb 21 1
  • LED LOW:
meshtastic --gpio-wrb 21 0
  • READ LED:
meshtastic --gpio-rd 0x15
  • WATCH LED:
meshtastic --gpio-watch 0x15

In conclusion, the issue with the '--gpio-wrb' command on the Xiao-ESP32-S3 device is related to the way the '--dest' option is used. By removing the '--dest' option from the command, the user can fix the issue and use the '--gpio-wrb' command to write to GPIO pins on the device. We hope this solution helps the user and others who may be experiencing similar issues.
Q&A: Meshtastic API '--gpio-wrb' Not Working on Xiao-ESP32-S3

In our previous article, we investigated the issue with the Meshtastic CLI API '--gpio-wrb' command not working on the Xiao-ESP32-S3 device. We provided a solution to the issue, which involved removing the '--dest' option from the command. In this article, we will answer some frequently asked questions (FAQs) related to the issue.

A: The '--gpio-wrb' command is used to write to GPIO pins on the Meshtastic device. It is a powerful tool for interacting with the device's GPIO pins.

A: The '--dest' option is not required for the '--gpio-wrb' command. However, it is required for other commands that involve sending data to a specific node ID.

A: GPIO21 and 0x15 are both valid values for the GPIO pin on the Xiao-ESP32S3 device. However, GPIO21 is the default value for the LED_BUILTIN pin, while 0x15 is a specific value that can be used to write to the pin.

A: Yes, you can use the '--gpio-wrb' command with other GPIO pins on the device. Simply replace the value of the GPIO pin with the desired value.

A: Some common errors that you might encounter when using the '--gpio-wrb' command include:

  • No channel named 'gpio' was found
  • Warning: Must use a destination node ID
  • Channel has not been named

A: To fix the "No channel named 'gpio' was found" error, you need to create a channel named 'gpio' on the device. You can do this by running the '--ch-add gpio' command on one device, and then '--seturl' on the other devices using the url from the device where the channel was added.

A: To fix the "Warning: Must use a destination node ID" error, you need to remove the '--dest' option from the command.

A: Yes, you can use the '--gpio-wrb' command with other Meshtastic devices. However, you may need to adjust the value of the GPIO pin and the '--dest' option accordingly.

In conclusion, we hope that this Q&A article has provided you with the information you need to use the '--gpio-wrb' command successfully on your Xiao-ESP32S3 device. If you have any further questions or issues, please don't hesitate to contact us.