Skip to content

Conversation

@pyhys
Copy link
Contributor

@pyhys pyhys commented Oct 18, 2025

The product photo is from
https://learn.adafruit.com/assets/124731 and has the license CC BY-SA 3.0.

Tested with the command in the index.rst file. Compile testing of the overlay file is done via the samples/drivers/dac sample.

Copy link

Copilot AI left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pull Request Overview

This PR adds support for the Adafruit AD5693R DAC shield, which features an Analog Devices AD5693R 16-bit DAC and STEMMA QT connectors.

Key changes:

  • New shield configuration files and documentation for the Adafruit AD5693R DAC
  • Device tree overlay configuration for I2C communication at address 0x4c
  • Extended DAC sample with a new test case for the shield

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file
File Description
samples/drivers/dac/sample.yaml Added new test case for the DAC shield with platform-specific configuration
boards/shields/adafruit_ad5693r/shield.yml Shield metadata and supported features definition
boards/shields/adafruit_ad5693r/doc/index.rst Complete documentation including usage instructions and pin assignments
boards/shields/adafruit_ad5693r/adafruit_ad5693r.overlay Device tree overlay for I2C DAC configuration
boards/shields/adafruit_ad5693r/Kconfig.shield Kconfig option for shield enablement

Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.

| LDAC | AD5693R Load DAC input |
+--------------+-------------------------------+

When using this shield via the STEMMA QT connector is the supply voltage 3.3 Volt, why the
Copy link

Copilot AI Oct 21, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Grammatical error: 'why' should be 'so' or 'therefore'. The sentence should read 'When using this shield via the STEMMA QT connector, the supply voltage is 3.3 Volt, so the maximum output voltage is 2.5 Volt.'

Suggested change
When using this shield via the STEMMA QT connector is the supply voltage 3.3 Volt, why the
When using this shield via the STEMMA QT connector, the supply voltage is 3.3 Volt, so the

Copilot uses AI. Check for mistakes.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Done

Comment on lines 67 to 68
Connect a voltmeter to the shield output, and notice how the voltage ramps up to 2.5 Volt
during approximately 1 minute and 20 seconds.
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I would use more vague wording in case the sample's behavior ever changes (or just drop this paragraph?)

Suggested change
Connect a voltmeter to the shield output, and notice how the voltage ramps up to 2.5 Volt
during approximately 1 minute and 20 seconds.
Connect a voltmeter to the shield output and observe how the voltage changes.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Done

The product photo is from
https://learn.adafruit.com/assets/124731 and has the
license CC BY-SA 3.0.

Tested with the command in the index.rst file. Compile testing of
the overlay file is done via the samples/drivers/dac sample.

Signed-off-by: Jonas Berg <[email protected]>
@sonarqubecloud
Copy link

@kartben kartben requested a review from fabiobaltieri October 23, 2025 21:49
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

area: Boards/SoCs area: DAC Digital-to-Analog Converter area: Samples Samples area: Shields Shields (add-on boards)

Projects

None yet

Development

Successfully merging this pull request may close these issues.

4 participants