Linked Questions

0 votes
1 answer
2k views

What GPIO pins are required to Power RPi? [duplicate]

We are using Raspberry Pi Model B: We used USB connector from PC - confirmed output - 5V, with 2 leads: Connected +5V to Pin 2 Connected GND to Pin 6 on connector - Inserted Ethernet cable ...
user avatar
2 votes
0 answers
1k views

Is it possible to have 5V output from a GPIO pin? [duplicate]

I want to make a small rc car using the raspberry pi. I tested the 3.3V and 5V output for the motor and of course I'd really prefer the 5V output, it is much faster. From what I read, the GPIO pins ...
user avatar
-2 votes
1 answer
208 views

Can i use 2.5Amp on Raspberrypi 3B GPIO 5v pins? [duplicate]

I'm thinking of using a 5V and 2.5Amp power supply to power up my Raspberrypi 3 model B over it's GPIO 5V PIN. Is it safe to use 5V 2A IN GPIO PIN?
user avatar
  • 1
0 votes
0 answers
95 views

Raspberry Pi 2 rewire power input [duplicate]

I want to use my raspberry pi 2 as an media center and use movies from my usb HDD Now the problem is that it runs short on power for that usb HDD (my usb hdd uses 2 usb ports btw) Now I found an old ...
user avatar
11 votes
7 answers
5k views

Powering Raspberry Pi 3 from another Raspberry Pi 3

Is it possible to power a Raspberry Pi 3 directly from another Raspberry Pi 3 that is powered from a Micro USB socket. I understand there is a 5v rail and I am thinking that linking the 5v rails ...
user avatar
14 votes
3 answers
5k views

Can I connect a 16x2 LCD screen to the 5V GPIO?

From what I've seen of articles and videos online, everyone seems to be using the 3.3V GPIO pin. I have an LCD screen which requires a 5V power supply and I wondered whether it would be safe to use ...
user avatar
1 vote
5 answers
19k views

SSH the Pi from computer with a USB cable only

I remember that when starting with Pi a few years ago (see this 2.5 year old question), it was impossible to SSH the Pi (without screen / keyboard / mouse) from computer with a USB cable only. One had ...
user avatar
  • 654
2 votes
4 answers
7k views

Supply 3.3V via GPIO header (Pi3)

I need to power a Raspberry Pi 3 via its GPIO header: I have a beefy regulated PSU capable of providing stable 4.98V, which I planned to route to the 5V pins of the Raspberry as stated in this answer: ...
user avatar
3 votes
2 answers
6k views

Help on powering 3.3V fans

I'm not 100% sure if this is the right form to post in, and I'm not the best writer... so please let me know if I make no sense. So I'm doing a little project and was wondering on how I could power ...
user avatar
  • 43
3 votes
2 answers
1k views

Does it matter which pins are used when powering the Pi from the header?

If you didn't already know, you can power the Pi from the GPIO pins. By supplying pin 2 with 5v and connecting a ground to pin 6, you can power the Pi. My question; does it matter which pins are used? ...
user avatar
  • 6,185
4 votes
1 answer
1k views

Safe to power Raspberry Pi 3 with 5.25 v out of BEC?

So I'm using a Lipo to power my Pi 3 and to be safe, I installed a 5v 3A UBEC. Upon checking the voltage output, I saw the BEC was only stepping the voltage down to around 5.25v, rather than 5v. I ...
user avatar
1 vote
1 answer
3k views

Problem with grounding

I have a little problem with grounding. I realized a circuit which is controlled by the GPIO-Pins of the Raspberry. The function of my circuit is irrelevant. You just have to know that I need the 3....
user avatar
  • 33
1 vote
3 answers
3k views

Powering multiple pi's and multiple external hdds

I have looked around here and on other sites but don't really come to a clear solution on what to do specifically with my setup. I'm searching for a way to power the following setup efficiently: ...
user avatar
  • 113
2 votes
3 answers
1k views

Switching power source from power bank to mains without interrupt

I'm planning to build a robot similar to one described here. The pi and the controller are going to be powered from powerbank. However, as big fan of live coding I am (there's gonna be some LISP ...
user avatar
  • 233
2 votes
2 answers
791 views

Using UART from USB C

So basically my Alienware R4 17" 2017 model has USB C ports. I think USB C ports are a standard and operate at 20 volts, 5 amps, and 100 watts for power and charging. I have a Pi 3 and Pie 3 Model B+....
user avatar

15 30 50 per page