Linked Questions
155 questions linked to/from Raspberry Pi Power Limitations
6
votes
2
answers
10k
views
Can Rpi3B+ power two USB SSD drives?
Can I power two usb drives using USB to satas or do i need a powered USB hub?
- 209
2
votes
1
answer
11k
views
What are the Electrical Specifications of GPIO pins?
What are the Electrical Specifications of GPIO pins; current limits and voltage levels?
- 58.6k
5
votes
2
answers
12k
views
Is a 2.4 A 5V USB charging port enough to drive a Pi 3?
So its a qualcomm quickcharge enabled smartphone charging port. The recommended amperage for the pi3 is 2.5A, does the 0.1A make a difference?
Also what is the difference between a charger and a ...
- 55
5
votes
3
answers
3k
views
How to protect Raspberry Pi when powering via 5v pin?
I have reglaurly heard that while it is possible to power the Raspberry Pi via the 5v rail, you do so at your own risk. This is because the rail lacks any of the protections that the USB port has ...
- 185
4
votes
2
answers
8k
views
Will an anker powerport+ work to power multiple pi's?
I'm not an electrical engineer so apologies for the rather basic question. I've found myself with multiple pi's and felt it was about time to look for some other power solutions other than powering ...
- 143
5
votes
2
answers
11k
views
How Can My Raspberry Pi 3 B+ Power All My Devices?
I have a bunch of questions. I have searched LOTS but I can't seem to figure this out. I hope an expert can answer this for me.
I read that a Raspberry Pi can only output 0.6A for those 4 USB ports in ...
- 105
2
votes
3
answers
11k
views
Will 3.3v gpio work for a fan without hurting the pi?
Will it hurt the pi if I run a fan on the 3.3v gpio? I have a hdmi lcd screen on mine and I don't want to use the usb ports for a fan. I have a raspberry pi 3 by the way
- 139
3
votes
3
answers
8k
views
Can I power Raspberry Pi (newer models) from 3.3v Supply Alone?
Many years ago, I've noticed that one without requirements of any 5V devices like USBs, he/she can completely bypass the power input circuit and the regulator. Feeding Pi Model A with power from v3.3 ...
- 133
4
votes
1
answer
17k
views
RPI3 USB port current?
I am using a RPI3 and have a GPS USB module and 3g USB dongle connected to the USB ports of the pi. I am using a 5 volts, 2.4 amps power supply. I was wondering if the RPI3 USB ports provide 1.2 Amps ...
- 171
5
votes
1
answer
10k
views
RPi 3 blinking Red and Green light
I have a couple of RPI which I use regularly. Recently, I have been seeing Red and Green light blinking on my RPi. Rpi works great. I just couldn't understand why both the lights are blinking as it ...
- 2,853
3
votes
3
answers
4k
views
Bad to have undervoltage?
I constantly have the yellow light showing on the top right of the screen.
Which means that the pi doesn't get enough power. I have a 5 volt and 2,1 amp adapter. Is this bad in anyway or could the pi ...
- 31
9
votes
2
answers
5k
views
How much power does a Raspberry Pi Need?
I have a Raspberry Pi 3 Model B and it seems like it's always low on power. You can see this by the lightning bolt on the top right corner.
I started out by plugging the USB power into a 1A iPhone ...
- 201
5
votes
1
answer
5k
views
Monitor Raspberry pi undervoltage warning over time
I am looking to find a way to monitor the under-voltage warning over a longer period of time, preferably also what it currently reads as the voltage. The reason being I would like to fuse the data ...
- 335
0
votes
1
answer
13k
views
The Pi Zero W has 5v and 3v rails. What is the max current per GPIO pin on the 5V rail?
What is the max current per GPIO pin on the 5V rail of the Pi Zero W? Also, can I power a 5V relay (4 channel, each requiring 15-20 mA) from this rail? If not, does anyone know of a 4 channel relay ...
- 103
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:
...
