Posts by Julio Santos • 221 points

• 21

  votes

  3

  answers

  3722

  views

  Q: Connecting LED via USB

  How can I send a 5V pulse through a USB? Imagine a USB cable that has 4 wires (one generates 5V and the other negative pole). Left over the two central wires. My doubt is as I can read via Delphi…

  c#

  asked 9 years, 9 months ago Julio Santos 221