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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.

  • Every report is reviewed
  • Safety reports first
  • Email is optional

Your report

Fields marked * are required. It takes about a minute.

Optional, but it helps us fix it quickly.

Filled in automatically when you attach a marked-up picture.

What you can report

  • A wrong resistor, capacitor or other component value
  • A wiring mistake or wrong pin number
  • A circuit that does not work as described
  • A safety concern — a missing fuse, unsafe mains wiring or an overloaded part
  • An error in the code, or code that no longer compiles
  • A broken image, download or link
  • An obsolete part, or wrong datasheet information
  • A copyright concern (see DMCA & Content Removal)

Make your report useful

  • Choose the article — its address fills in by itself
  • Say what is wrong and what it should be, e.g. R3, C2, Q1 or the line of code
  • Mark the spot on the circuit, code or pinout and attach the picture
  • Link to the manufacturer's datasheet if you can
  • Leave your email only if you would like a reply

What happens next

  1. Safety reports are reviewed first. 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 it is confirmed, we correct the article and update its date.
  4. If you left your email, we may reply to tell you what changed.

We cannot help debug your own build through this form — please ask in the article's comments instead. See also: Editorial Policy · Electrical Safety · Disclaimer