Additional 5v stuff
December 11, 2023, 18:27
Hi!
I have a Raspberry 3b with a 7 tft that runs off the 5v pin and I need to run a 5v fan, can i just split the 5v or do i need to do something more?
not sure what a 7 tft is but you should just be able to plug the 5v pin into the fan
7 inch tft screen. It currently occupies one of the 5v pins
oh then you can't use the fan
you can't split it, though I'm sure if you plug it into the 3v pin the fan will just run slower
But there is two 5v pins as far as i can see?
yes their is, ive never realised that properly before
ok yes if the screen doesn't occupy that second 5v pin you can use that instead
What model of TFT display?
oh the official one
cool
ok just checked, the display only uses one 5v pin, and you can also power it without the pins if needed
How do I do that?
it's unrecommended but if you have a 5v power supply with Dupont wires then you can just do that. you can get this stuff on Amazon
but it seems like you only need one 5v pin so just use that
Between the USB 5v and the 5v pin on the 40pin header is there a fuse and that is the reason behind that it is not recommended to supply the Raspberry Pi with 5v through the 40pin header
yes it's highly recommended to just not do that. but it is possible atleest