Most of the Arduino uno boards have black female pin header. when i bought a ardiuno uno the digital pins 0 to 7 are made of silver pins. What type of pin header is that? How to use these kind of pin headers?

The image shows an adruino uno r3. with some silver pin headers

  • 6
    it is just the black plastic removed
    – Juraj
    Apr 13, 2023 at 12:58
  • What makes them basically unusable. You should remove them and solder on a new one
    – chrisl
    Apr 13, 2023 at 13:33
  • 1
    if you do not want to do any soldering, then you may be able to push on another shell ... you could also put heat shrink tubing on each of those forks
    – jsotola
    Apr 13, 2023 at 16:23

1 Answer 1


These are corrupted female headers so remove them and solder new ones.

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