Contact details

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By type of inquiry

Bug reports

Sending the following information together makes reproducing and fixing it much faster.

  • The browser and version and the operating system you used (for example, Chrome 130, Windows 11)
  • The order of your actions, what you expected, and what actually happened
  • The share link of the board that shows the problem (the editor's [Share] button). With a link we can open the same screen right away.
  • A screenshot or the error message

Feature and article topic suggestions

Tell us the parts you need, the circuit topics you would like covered, and the operations that are awkward. We cannot take in every suggestion, but we use them when setting priorities.

Content corrections

If you think a formula, figure, or explanation in a guide or calculator is wrong, send the address of the article, the part that is wrong, and your source (the datasheet or reference name). After checking, we fix it and update the "Last updated" date at the top of the article.

Requests to access or delete personal information

Patterndo has no accounts and does not collect names or contact details. If you want board data saved through a [Share] link deleted, tell us that share link address. We delete it without delay to the extent we can confirm the link is yours. Our full handling policy is in the Privacy Policy.

Copyright and content reports

If you believe site content or the content of a share link infringes rights or is inappropriate, send the address, the right that is infringed, and your details as the reporter. After checking, we take the needed action (editing, deletion, or blocking access).

Inquiries we cannot help with

We cannot design personal circuits on commission, diagnose failures in real products, or review circuits that need safety certification. The guides' checklist and diagnostic message explanations may help instead.