2

We are assembling a system that requires buttons to be placed upside down. Our first attempt used tactile buttons mounted on a breadboard and stuck upside down, but the buttons keep falling out.

So, we are looking for a more "stable" tactile button system. I came across these buttons, but I don't much about voltage and resistance, so I don't know if they will work.

Specifically: the Raspberry Pi 3 GPIO pins are 3.3V. The buttons are:

Rated 6 amps @ 120 volts AC and 2.5 amps @ 24 volts DC with a maximum voltage of 600 AC and DC

Will these work together? More generally, what is the right way to think about voltage, wattage, and resistance?

|improve this question
  • 1
    Those switches should work fine based on the DC operating range quoted. However, the idea of a breadboard and production quality do not really align . Something like this permaproto board from Adafruit is a better long term solution. The holes are wired together exactly like a breadboard, but allows soldering the components to the board, for a more permanent solution. – Steve Robillard Dec 13 '16 at 22:30
  • Per the help center shopping questions are explicitely off-topic. – Jacobm001♦ Dec 13 '16 at 22:32
  • @Jacobm001 apologies, I wasn't aware. I was looking for compatible products. Feel free to close/delete if necessary. – Jason Shah Dec 13 '16 at 22:35
  • @JasonShah: It's been pointed out to me that a portion of your question is in fact on topic. Asking if something specific is compatible is on topic, but asking a general shopping question like "what is available", isn't. Editing your question may better reflect the portion that is allowed. – Jacobm001♦ Dec 13 '16 at 22:39
  • 1
    Asking for specific purchasing recommendations. is off-topic, asking if the item you've picked with its particular specifics fits your task is not. – Ghanima♦ Dec 13 '16 at 22:39
2

Those buttons will do fine.

Note that the listed ratings for the buttons are maximum or "absolute maximum" values that should not be exceeded. Operating them at the Pi and 3.3 V of its GPIO pins is well within the voltage rating. The current required to toggle an input pin is in the milliampere range or even below - so again, well within the limits of the buttons.

Rated 6 amps @ 120 volts AC and 2.5 amps @ 24 volts DC with a maximum voltage of 600 AC and DC

|improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.