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Raspberry Pi 2 B - Illuminated Power Switch

j666gak

Hello,

 

I have been searching across the forum for articles relation to adding a power button, however all of the posts either refer to using GPIO pins 5 & 6 which I am already using for the offical 7" touchscreen.

 

  • Can either momentary or latching switch be used?
  • Which GPIO could be used instead on pins 5/6? or does it have to be 5v and ground
  • On the switch would you normally NO (Normally Open) or NC (Normally Closed) terminal?

 

Thanks for your help in advance.

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    I've never used the Pi display you're referring to, but I presume you can change the GPIO you're charging it with, as Enrico said.

     

    That option aside, you also have the option to have a switch to the system's power input instead:
    -There is a Micro USB cable with power switch you can buy
    -You can splice to add a switch to the Micro USB wire.

     

    I've not heard of using a switch on the GPIOs to control the power, and while some object to unplugging power when something's on, it's all I do with the Pi. In fact, I personally would see more risk to trying to short the system with a switch on the GPIOs, than using a switch to control the power.

     

    I know you're likely wanting to "do a thing" with the Pi, but sometimes, hardware is a better method than software.

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  • 0

    I've never used the Pi display you're referring to, but I presume you can change the GPIO you're charging it with, as Enrico said.

     

    That option aside, you also have the option to have a switch to the system's power input instead:
    -There is a Micro USB cable with power switch you can buy
    -You can splice to add a switch to the Micro USB wire.

     

    I've not heard of using a switch on the GPIOs to control the power, and while some object to unplugging power when something's on, it's all I do with the Pi. In fact, I personally would see more risk to trying to short the system with a switch on the GPIOs, than using a switch to control the power.

     

    I know you're likely wanting to "do a thing" with the Pi, but sometimes, hardware is a better method than software.

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