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Report a Problem

Found a mistake in one of our circuits or tutorials? Tell us and we will check it and fix it. Reports from readers are one of the most important ways we keep Circuits DIY accurate and safe.

Optional, but it helps us fix it quickly.

What you can report

  • a wrong resistor, capacitor or other component value;
  • a wiring mistake or wrong pin number in a diagram or description;
  • a circuit that does not work as described;
  • a safety concern — for example a missing fuse, a mains connection described unsafely, or an overloaded part;
  • an error in the code, or code that no longer compiles;
  • a broken image, download or link;
  • an obsolete part that should be replaced;
  • wrong datasheet or component information;
  • a copyright concern (for a removal request, please use our DMCA & Content Removal page).

How to make your report useful

  • Include the article address (it is filled in automatically when you use the "Report a problem" link on an article).
  • Say exactly what is wrong and what you think it should be — for example the component reference (R3, C2, Q1) or the line of code.
  • If you can, link to the manufacturer's datasheet or another source that supports the correction.
  • Leave your email if you would like us to reply. It is optional.

What happens next

  1. Safety reports are reviewed first. If a report shows a serious safety problem, we may add a warning or take the article offline while we check it.
  2. We check the report against the datasheet, our calculations or the original source.
  3. If the report is confirmed, we correct the article and update its date.
  4. If you gave us your email, we may reply to tell you what we changed or to ask a question.

We cannot offer one-to-one help with debugging your own build through this form, but you are welcome to ask in the comments of the article.

See also: Editorial Policy · Electrical Safety Notice · Disclaimer