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  1. R

    Review Request - LED and Switch Breakout

    I have been recently working on a board which just breaks out a few switches and LEDs for easy soldering to a Raspberry Pi. There isn't much of a circuit, but I would like guidance if I chose suitable resistors, etc. I have two LEDs - APT2012LZGCK (2mA @ 2.65Vf - with a 330Ω res.) and an...
  2. A

    Simulating button press on monitor using transistor and arduino

    Hello everyone, I have next to no knowledge of electrical eng or circuitry and am having some trouble with my homebuilt arcade. The essence of my problem is that I want to wire both the computer and monitor to the same rocker switch. The monitor turns on via a button press that completes a...
  3. vifyrv

    How do I reverse a pushbutton logic with a switch?

    What is the simplest way to reverse the logic of a switch? What I have are audio levels running to a jack or speakers. I figured out how to simply add a Sanwa arcade button to interrupt the flow when it is not pressed and simply complete the circuit when it is pressed. The question: is there a...
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