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I have recently hooked up an HDMI display to my Pi. I don't need the touch screen functionality, I just need it to receive power through the GPIO because the screen is detached.

Detached Rpi display

It works. I just connected the 5v pin and the ground pin to the appropriate sockets. But I am unsure if this is safe to do. Should I be using a resistor?

  • Your link is broken. Was this screen made to attach to the GPIO? If soyou should have no problem. – Steve Robillard Mar 16 '17 at 17:46
  • You are using the 5v pin for its intended use. It is connected to the power connector not the SOC gpio pins. I would be worried about plugging the wire to the wrong pin. Solder or wire wrap would seem safer, to me. – PaulF8080 Mar 16 '17 at 18:14
  • Inserting a resistor (WHY? What value?) will only create problems. See Raspberry Pi Power Limitations – Milliways Mar 17 '17 at 9:02
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I can't think of any reason to use an in-line resistor.

If you are worried (which I wouldn't be) I would add an in-line fuse.

I'm not a electronics type though.

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