All Questions
Tagged with pi-4 power-supply
68 questions
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How to decouple USB power and OTG on RPi4 USB-C?
I want to use USB-OTG on my Raspberry Pi 4, but I want to have a possibility to cut the power off and thus force reboot of the device.
Currently my RPi is powered via Power pins in 40 pin GPIO headers....
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53
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Can't power RP4 from same active hub the peripherals are connected to
I'm building something NAS-like with a RPI4 Model B Rev 1.2 and 2 hard disks. I'm using an active hub for the hard disks and wanted to power the RPI4 from it as well. Here is how I wanted to wire it:
...
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17
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Powering a RPi 4 a 6V Peristaltic motor (~4mA) and 2 12V Peristaltic motors wired to 8 Relay module from 12V variable power supply
I am creating a smart garden panel basically which is incorporating a RPi 4 as the brains and has 3 peristaltic motors. 2 of which are 12V and 1 is 6V which draws about 4mA of current to run, this is ...
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40
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Phone charger power supply for raspberry pi 4
I have a Motorola power supply with output: 5v 3a 15w or 10v 2a 20w or 12v 1.67a 20w. My question is: can I use this power supply for my raspberry? Or is there a risk that it could be burned or ...
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2
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68
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What is used to power the Raspberry Pi 4B?
Just got a Raspberry Pi 4B, 4 GB, (first time), and have been having fun trying to figure out what it takes for power. According to the extension kit I got, Raphael Ultimate Kit for Raspberry Pi, it ...
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23
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Connecting 40+ transmitter coils to Raspberry Pi
I am currently working on a school project to make the wireless charging platform
from scratch but with more surface for originality. My current design requires 42 transmitter coils and these coils ...
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3
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135
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Can I use this power supply?
Abandoned post by Unregistered user.
The maximum power supply for a Raspberry Pi 4 is 5V/3A but here I have a 5V/3.1A power supply. Can I use this power supply? Will I fry my Pi 4?
Below is a ...
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550
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Can I use this fast charger for my Raspberry Pi 4? [closed]
It is a fast charger and says 5V/10W and also says 45.0W MAX? Please help me out.
I don't know what to do. Will it destroy my Pi 4?
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-1
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1
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42
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Does Pi draw more power when GND is connected to pin 16?
Strange question perhaps, but I was wondering if anyone knows if a Pi would in theory consume more energy when the GND pin is connected to pin #16? I have an interactive piece of software running on ...
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2
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1k
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How do I prevent raspberry pi automatic turn on when I connect the power plug?
I connect the power in plug. After that raspberry pi automatically turn on .
But I want it to be on when I press the button, how can I do this?
1
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1
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69
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Powering RPi 4B via USB-C Intermittent
The USB-C port on one RPi 4B is not making a good connection. If I apply side pressure to the USB-C power cord, the connection is made, and the RPi powers up, but when I release pressure it dies again....
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3
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1k
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Powering Pi 4B with dead PMIC
One of my many Raspberry Pi 4's in one of my clusters recently broke down. After some troubleshooting, I was surprised to find out, that the power circuit on the board was actually toast.
I have no ...
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230
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External hard drives keep getting unmounted
I have an OpenMediaVault NAS on top of the Raspberry Pi OS Lite set up on my Raspberry Pi 4B.
I have two 1 TB Toshiba HDTB410XK3AA hard drives connected to the Pi through a powered USB hub.
Now I am ...
- 131
1
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1
answer
165
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Is my Raspberry Pi original?
I recently bought a Raspberry Pi 4 Model B. This is the first time I have bought a Raspberry Pi. As per my understanding, the recommended power supply is 5.1V / 3A. I am using a different power supply ...
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3
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487
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RPi can't boot up from battery, needs to be connected to USB-c then while the battery is connected disconnect power supply USB-c
I have noticed that my Pi will not boot from a battery (supplying 5.26v Raspberry Pi 4 Model B) unless I first start it up from the USB-c power supply and then connect the battery power supply. My ...
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1
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5k
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How best to run a raspberry Pi 4 from a 12V DC supply
The Raspberry Pi 4B uses the USB-C input as its power supply. To the best of my knowledge a full power USB-C supply is 20V or is it any voltage up to 20V?
If it's variable, is there a good way of ...
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1k
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Strange voltage on 3.3V pins
I have bought a new Raspberry Pi 4 and while troubleshooting connection to a DAC module I measured the voltage at 3.3V power pins. With reference to the pin header number as shown on the diagram below,...
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2
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958
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Do I need a on and off button for my power supply?
I purchased this power supply https://www.raspberrypi.com/products/type-c-power-supply/. It’s the official power supply so I thought it would be good. Now I am hearing all these stories about what ...
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1
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676
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Difference between Pi3 and Pi4 RUN headers?
I am trying to disable boot when pi4 plugged to power. I found some usefull answers, but that answers are about pi 3. I am using pi 4 and I must connect together 2 RUN header pins. In pi 3 RUN header ...
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2
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160
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Is 4A enough for a NAS?
I have recently turned by Raspiberry Pi 4B into a small NAS. However, I noticed that the Pi disconnects from Ethernet from time to time. Whenever this happens (e.g. ssh not responding or Pi not ...
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18
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Powering a Pi 4 with a small power bank [duplicate]
For my project SamplerBox, I had done many extensive tests in the past and it was possible to successfully power a RPi 2 for multiple hours with such a small 2600mAh power bank (18650-battery inside), ...
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3
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195
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Is there any advantage powering up a RPi 4B with a PSU rated for 8A @ 5V?
I have a Raspberry Pi 4B 4GB RAM variant that will be running 24/7 with the following attachments:
an ethernet cable leading to a router for internet connectivity
a 2.5" external HDD attached ...
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2
answers
1k
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Can I use USB 3.0 port to power RPI4 + external SSD?
On the Pi-4B, can I use one of the USB 3.0 ports for power, instead of the USB-C port?
I will be powering the Pi-4, an SSD drive (Sabrent 512GB Rocket Nano), and a Conbee II — which btw currently ...
2
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2
answers
731
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Phone charger for powering Pi 4?
I just bought the Raspberry Pi 4 Model B 2GB RAM and I forgot my charger at my house which I won't be able to get to in a few weeks.
I was wondering if I could power the Raspberry Pi using a phone ...
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1
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1
answer
160
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After shutdown/poweroff command, is it possible to damage a pi (4) by leaving the Powercable in?
So I have a Raspberry Pi 4 type C 5V 3A adapter plugged into the power extender thingy at all times.
My question is, once you type the poweroff command into the terminal and see the device turning off,...
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2
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157
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Can I connect a Raspberry Pi 4B to an Arduino Power Supply Module? And if so, how?
simulate this circuit – Schematic created using CircuitLab
I am trying to use an Arduino Power Supply Module to provide enough power to allow at least 5V and 10 mA through to an external supply. ...
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1
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296
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Standard USB C Power Supply and Overclocking
Is the standard (official) raspberry pi usb c power supply able to reliably supply a raspberry pi 400 with overclocked cpu and gpu?
Meaning so that the pi gets enough watts to run at maximum speed ...
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2
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1k
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Pi 4B not booting when powered via power pins on extension header
I used to power my Pi 3B and 3B+ from and external shield board of my design, which features 5A power source, connecting +5V to pins 2 and 4, and GND to 6, 14, 30, 34 and 39. It worked just fine, ...
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1
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1
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110
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Static Shocks from RPi Issue
my first post here, so hope it's on-topic for the forum.
Straight to the point... I have RPi 4-4GB running Astroberry for astro-imaging. The RPi is in the Argon ONE V2 Raspberry Pi 4 Case, and the ...
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43
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Turning switch on lowers voltage from 5.2v to 3.0v
This is probably a simple question, but I’ve researched a lot and haven’t been able to figure out how to fix the problem.
Basically, I have a Raspberry Pi and a 5-inch LCD screen wired to a toggle ...
- 101
1
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0
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191
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How to power PCA9685
I am using the RP 4B and am trying to control a servo with the PCA9685. Unfortunatelly I am very new to all that and therefore I don't know which specific components I need to power it up. I bought a ...
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1
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246
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pi 4 - Power present
I am using a pi4 and pijuice.
Is it possible with a script or python to check if power is present in my Pi4?(usb port)
I am using my pi4 headless with as a web server(online). I would like to know ...
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1
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250
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What power supply can I use for 2 servos?
I am a complete noob when it comes to raspberry. I have 2 servos MG996R that I need to power from an external power supply. Currently I am doing it from the board, and when I turn both of them the ...
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257
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Raspberry Pi 4 Undervoltage warning even with official AC adapter
My Pi 4 is relatively new and I previously used a 5V 3A tablet charger from an old Huawei device to power it without issue.
Recently, a lightning bolt started appearing at the top right of the screen,...
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3
answers
3k
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Use a usb-c charger with variable voltage for charging Pi4 [duplicate]
I have read here that is possible to charge you pi4 with 3rd party chargers that supply 5V 3A.
I am wondering if I can use this 20W charger, which can deliver differnet voltage level (5V/3A, 9V/2A, ...
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0
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630
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RPI connected to a smart plug -> how to auto turn off plug after RPI shutdown?
In short:
I was wondering if it is possible to send a command to a smart plug when the pi is good to kill it's power.
background
I'm running a 3d printer which I'm going to control with a rpi 4 using ...
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1
answer
131
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Can We Use A 5.1 3a USB Type-C charger on a Raspberry Pi 4B 8 Gb or 400? [closed]
I am thinking of buying A Raspberry Pi 400 Only Keyboard ( not a kit). So for a power supply I don't want to buy the official power supply, But a adapter and a long cable ( such as here ). Can u just ...
0
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1
answer
44
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Raspberry pi 4 power supply without any periphirals
I'm planning to use raspberry pi 4 for homebridge. I will not be connecting any display or any input device and will use ethernet cable for network. will 5v 2amp adapter be sufficient for power?
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2
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302
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How to plan for power for an off grid solar station?
I want to put a weather station at a very remote airport whichhas no electricity or communications.
The overall concept is this:
Solar panels
Large deep cycle battery
Raspberry Pi weather station
IOT ...
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2
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1
answer
2k
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Powering Raspberry Pi 4 'on the move' using power bank [closed]
There are good official resources that state that recommended power supply must be 3 amps (e.g. official RPi power supply via mains). However, for use 'on the move' or remote locations this may not be ...
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3
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4k
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Pi crashes without apparent reason
I own a Pi4 (4GB), and I'm having some issues.
The pi crashes with no apparent reason.
By crashes I mean it becomes unreacheable via ssh, PiHole and HomeAssistant that are running on it become ...
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3
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1
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205
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Can RPi 4 deliver more amps on the 5 volt rail than RPi 3 powered over PoE?
I have a setup using a Raspberry Pi 3B.
I use the PoE hat on top and I power the entire setup over PoE from a Unifi switch.
The setup has quite a lot of peripherals that need power and I use the 5 ...
1
vote
3
answers
319
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Running Toy Motor circuit with Pi's 5v
I am currently going through the tutorials included with those kits that you can get for the Pis with breadboards and components, etc. Anyway, in the tutorial, I am making the following circuit:
In ...
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18
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4
answers
86k
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Pi 4 maximum power consumption
What is the maximum theoretical power consumption of Pi 4? I had expected that I would be able to find some sort of specification table for that, but I could not. The only things I could find were ...
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3
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10k
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Power Raspberry Pi 4 with a phone charger [duplicate]
I've got a phone charger that delivers 4.5 A at 5 V (Huawei SuperCharge), which should be enough to power the the Pi 4. Can I use this charger or do I have to buy the original one?
Thanks in advance
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1
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6k
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Power Raspberry Pi 4 (4GB) In any Car [closed]
Hey , so here's the dilemma , I want to use My yet-unused Raspberry Pi 4 (4GB) in my car , providing it works , as it seems this one was from the first batches manufactured and people reported it ...
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1
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1
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3k
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Can raspberry pi4 connect to 2 2.5inch laptop harddrives with a 5v2a power supply?
I have two spare laptop hard drives and I want to use them with my raspberry Pi4. I wonder if a 5v2a power supply enough to make them up and running. If a 5v2a power supply wasn't enough, which kind ...
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1
vote
1
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592
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Powering multiple Raspberry Pi 4s with 65W USB-C computer charger
Is it possible to power up multiple raspberry pi's with 65W USB-C computer charger? If so, is there anyone who have done it, that they can share how they did it?
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1
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6k
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Can I power a RPi 4 model B via a 5V/2A fast charging adapter?
It says 5V/3A in technical specs, I wonder if that 3 A is a must, or is there anybody who can power RPi 4 model B via a standard 5V / 2A smart phone adapter.
Specifically, I would love to hear ...
- 113
1
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0
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181
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RPi 4B official power source not powering it ON
I am trying to get my RPi4B(4GB) powered ON with a power supply but am frustrated with the results.
I found a workaround to this problem, which is that I can power on the Pi4B with a type-C USB cable ...
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