1

I am powering LEDs off my RPIZero to use as an Ambilight clone. My setup has the LEDs being entirely powered off the GPIO pin 2 (5v)but I have noticed that the far end of the strip seems darker and was wondering whether or not I could add additional power to the strip by also using GPIO pin 4.

Here is the setup I have right now:enter image description here

Improve this question
2
  • Unless this is a very short strip, which you have not specified, it is doubtful it can be powered from the Pi
    – Milliways
    Jan 21, 2020 at 21:15
  • don't use the RPi as a power supply ... the Pi can easily become an expensive fuse
    – jsotola
    Jan 22, 2020 at 2:35

1 Answer 1

Reset to default
2

Pins 2 and 4 are both on the 5V power rail. You can consider them to be the same pin. Just as much power will come out of pin 2 as pin 2 and 4 together.

It might be worth connecting 5V power to both ends of the LED strip.

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

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