Questions tagged [power-supply]

The methods for powering the Raspberry Pi (typically via its micro-USB connection.)

Filter by
Sorted by
Tagged with
0 votes
0 answers
24 views

Simple UPS by directly connecting 4 NiMh accumulators to power bus? [closed]

I have a Raspberry Pi 4 Model B powered by PoE (using the official PoE hat). Unfortunately, it sometimes gets abruptly disconnected, which sometimes results in unrecoverable data corruption. So I need ...
user avatar
0 votes
1 answer
35 views

raspberry pi 3 B v1.2 not booting no led light and heating on the backside

I haven't used the pi for a few month now , it was stored in good condition. so yesterday i flashed the SD card with rasbian bullseye and booted up the pi. every thing was normal except the wifi , i ...
user avatar
0 votes
1 answer
58 views

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,...
user avatar
-1 votes
1 answer
16 views

Raspberry Pi 4 wifi intermittent latency drop

I'm running Ubuntu Server 20.04 headless on a Raspberry Pi 3 and 4. SSH connection is through a wireless router with only my laptop and the Pi connected. Pinging the Pi (192.168.0.215) shows the ...
user avatar
  • 1
0 votes
0 answers
29 views

Monitoring power consumption of a Raspberry Pi 3B+ device

I am wondering if it is possible to measure the power being consumed by the CPU core (ARM chip) of a Raspberry Pi? Specifically, I want to monitor this power consumption for various applications that ...
user avatar
1 vote
2 answers
199 views

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 ...
user avatar
  • 135
0 votes
1 answer
30 views

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 ...
user avatar
  • 1
0 votes
0 answers
36 views

How to disable boot when plugged to power? [duplicate]

I want to disable boot of raspberry pi 4B when plugged to power I have searched a lot and found a similar question, which gives a short and suspicious answer to this problem. If two RUN pins(holes) ...
user avatar
  • 1
0 votes
2 answers
50 views

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 ...
user avatar
0 votes
2 answers
68 views

Raspberry PI4 + Coral TPU + Telit LTE get "Under-Voltage"

I am using a Raspberry PI4 powered by the Raspberry power supply(5.1V,3A) and I have also a Coral TPU and a Telit Lte Modem attached on Raspberry USB 3.0 Ports Hub. According with the Coral Power ...
user avatar
2 votes
1 answer
51 views

3 12V DC motors on raspberry pi with L298N

Completely new to this stuff. For context, I am trying to connect 3 DC motors that probably are 12v. I haven't bought them yet, they will definitely be more than 5v. I want to be able to control all ...
user avatar
0 votes
1 answer
27 views

Raspberry Pi 4 WiFi and Ethernet stop working after a ribbon cable plugged in to custom HAT

I have been struggling with a strange issue where as soon as I plug a ribbon cable into a custom designed HAT (with nothing connected on the other end), the WiFi and Ethernet temporarily go down. My ...
user avatar
0 votes
1 answer
35 views

Send power on/off/cycle command from one Pi 4 to another Pi 4 using GPIO (each having their own power supply)

I would like to control power of a Raspberry Pi 4 using another Raspberry Pi 4. Each Raspberry Pi is powered by its own official Raspberry power supply, to make sure each one gets enough power. It ...
user avatar
1 vote
2 answers
158 views

Turn on pi at specific time with RTC to save battery

I'm looking into powering my raspberry pi via a powerbank. I already have a button and a relay to turn it on manually and when the pi shuts down flip the relay back to off position. Now I would like ...
user avatar
1 vote
2 answers
47 views

How much overvoltage for a few ms

i'm trying to build a system with a Raspberry Pi and 2 switchable 5V DC Batteries (USB Powerbanks). I want to switch using Arduino and Relays. I would like to switch almost instantaneous, in order to ...
user avatar
0 votes
1 answer
53 views

Is it safe to power a Raspberry Pi Zero W with a Fritz!Box USB-port?

As many others im getting a Zero W for PiHole and i would like to power it using the usb-port of my wifi router. However, im concerned about undervoltage. I read the Zero W wants 1,2A, but usb 2.0 ...
user avatar
0 votes
0 answers
23 views

Sim7600 usb issues during GPS bursts

I have a RASPI2B+ connected to a LTE module SIM7600. In addition a wifi adapter RTL8188 is used as AP. I can connect easily with LTE network (AT+CNMP=38) but, when select GSM (AT+CNMP=13) it goes ...
user avatar
0 votes
1 answer
59 views

Calculating power adapter needs for my Compute Module 4 setup

So I'm finding it a little difficult to figure out how I should be powering my setup. I'll have Waveshares IO board here: https://www.amazon.com/gp/product/B08VJBGD1Q/ref=...
user avatar
1 vote
0 answers
45 views

USB power stay on after software shutdown?

When the RPi4 does a soft shutdown, it appears to leave power on to the USB ports. Is there a way to have the USB ports power off with the RPi? I’m building a project with a Waveshare touchscreen that ...
user avatar
0 votes
2 answers
369 views

Can I power a Raspberry Pi 400 with a 5V 2.5A power supply?

I have Raspberry Pi 3 B+,and I'm considering upgrading to a Raspberry Pi 400. I understand that it is recommended to use a 5.1V 3A power supply, but can I use the 5V 2.5A supply I already have?
user avatar
  • 1
0 votes
1 answer
50 views

Can sensor DHT22 be powered externally, and only read by Pi Zero W?

I am querying the DHT22 for temperature and humidity data, hooked on a Raspberry Pi Zero WH. My current setup works, and is as shown in the first picture, courtesy of the tutorial from PiMyLifeUp. ...
user avatar
0 votes
0 answers
92 views

Connecting the pi to a pixhawk flight controller

I am building a drone using a Pixhawk 2.4.8 flight controller. I want to add a pi with a picam to my build. I have followed this manual for connecting the pi to the controller. Therefore I have made a ...
user avatar
  • 101
-1 votes
1 answer
59 views

How to turn on a remote battery-operated Raspberry Pi (accessible by Wifi or SSH)?

I am running a cluster of Pi3 and Pi4. Each node runs on a battery and is powered by a solar panel, in a remote area like a farm with no grid. Pis are connected to each other by WiFi in a local ...
user avatar
0 votes
2 answers
44 views

Undervoltage warning with original powersupply

I am running into the issue of getting the undervoltage detection on my Pi 3 B V1.2 while it is connected to an original psu (which provides 5.1V/2.5A). The psu definetly works as intended (I tested ...
user avatar
2 votes
2 answers
229 views

Cut power supply to pi after shutdown and power on after button press

I am building a pi project that is battery powered and is powering something through the 5V GPIO. What I want the pi to do is to start up on a button press, do its thing and turn itself off again ...
user avatar
1 vote
1 answer
348 views

RPi Zero 2 W monitor image lost during boot [closed]

TLDR: RPi Zero 2W outputs image only for a few seconds then stops My brand new Zero 2W is having issues with the monitor image. During boot I can see the init messages going by and at some point ...
user avatar
  • 111
0 votes
0 answers
15 views

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), ...
user avatar
  • 644
0 votes
1 answer
112 views

Power supply for this cluster?

I have this cluster, composed by: 1 Rpi4 Model B 2 Rpi3 Model B 1 Rpi3 Model B+ I don't neither the skills nor the tools/components to implement a DIY solution, so I would like to buy something that ...
user avatar
  • 117
0 votes
3 answers
71 views

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 ...
user avatar
0 votes
1 answer
173 views

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 ...
user avatar
0 votes
4 answers
479 views

Low voltage warning powering Raspberry by means of power bank

I'm trying to power my Raspberry 3 model B by means a Catlyn Power Bank 10000mah just purchased and seems to work fine with an iPhone 11. The problem is that when I connect it to Raspberry, even if ...
user avatar
  • 11
1 vote
0 answers
541 views

Is it safe to power Raspberry Pi Zero 2 W directly from computer?

A great feature of the Raspberry Pi Zero is that you can tether it to a PC, Mac or iPad Pro by connecting it directly to a USB port. It can act as a USB-Ethernet-adapter and you can ssh into the Pi. ...
user avatar
  • 103
0 votes
1 answer
27 views

Power Monitoring Physics Experiment

Hi i am just planning a Physics experiment where i accelerate Ionized Gases onto a target sample. For this Experiment i need to monitor the power constantly over a week or longer. For my later data ...
user avatar
1 vote
2 answers
62 views

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 ...
user avatar
  • 13
0 votes
2 answers
48 views

Can I use a 3A/5V phone charge for powering my pi 4?

I have a completely fine and working type C charger with a stable voltage supply. The concern that I have is that my pi 4 is going to run 24/7 performing web scraping and analysis. Surely I have a ...
user avatar
0 votes
0 answers
55 views

Can you hack a regular Raspberry Pi 3 B (not the plus model) to work with one of the PoE Hats?

The regular B-model (unlike the B-plus) does not have the extra 4-pin header located new the ethernet jack that the various PoE(+)-HATs need. However, the nonplus B-model's ethernet jack does have a ...
user avatar
  • 101
1 vote
1 answer
50 views

Power supply for stepper motor driver board

I'm doing a project where I wish to use 5 stepper motors simultaneously. I've ordered these (with driver board included) https://www.amazon.ca/gp/product/B015RQ97W8/ref=ppx_yo_dt_b_asin_title_o01_s00?...
user avatar
0 votes
0 answers
42 views

My Raspberry pi keep show msg : low voltage warning please check your power supply [duplicate]

I have Raspberry pi 3 , and I am using its power supply which give 5V -2.5 A , the problem is that the raspberry Pi keep show this message : low voltage warning please check your power supply
user avatar
  • 11
1 vote
1 answer
68 views

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,...
user avatar
2 votes
1 answer
90 views

raspberry pi prevent overload current from turning on a high current motor

I am trying to use only 1 power supply instead of 2 to power Raspberry Pi and motor, but when I turn on the high current (>10A) motor, it will lead to the Raspberry Pi restarting. I guess it is ...
user avatar
0 votes
2 answers
41 views

Dual Power a Pi from POE and USB input?

I have a Pi4 with the standard raspberry-pi branded POE hat, and it works fine. It is installed behind a monitor, which has USB ports. So I thought to add a USB-A to USB-C cable from monitor to Pi as ...
user avatar
  • 272
0 votes
2 answers
64 views

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. ...
user avatar
0 votes
1 answer
69 views

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 ...
user avatar
0 votes
2 answers
311 views

My raspberry pi is dead?

I have a raspberry pi 3 B that apparently stopped working after a thunderstorm. When it's plugged the red power led turns on but I can't boot the OS. I checked the voltage on GPIO pins and I get: 2....
user avatar
1 vote
1 answer
116 views

Powering multiple hdds to work with raspberry pi 4

I have a rpi4 with the default 5v 3A charger. However, when I hook up all my usb peripherals (2 mechanical hdd and a cc2531) I run into power limitations and things do not work properly. I am thinking ...
user avatar
  • 13
1 vote
1 answer
60 views

Is there a risk for the rpi to be under powered?

I power my RPi 3 from a Meross strip and I often get the small yellow lightning bolt in a corner that indicates that the RPi is underpowered. I know that this can lead to all sorts of issues with the ...
user avatar
  • 477
0 votes
1 answer
219 views

How to troubleshoot VPN returning segmentation fault on a Pi Zero W or Did I fry my Pi?

My headless Pi Zero W gives a segmentation fault whenever I run the ExpressVPN application. This problem occurs on a brand new Sandisk Ultra microSD card, imaged with Raspbian Lite 32 bit via the ...
user avatar
0 votes
1 answer
120 views

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, ...
user avatar
  • 111
0 votes
2 answers
23 views

Is Raspberry Pi 3 B+ power supplier compatible also with Raspberry Pi 2?

It seems that my Raspberry Pi 2 power supplier stopped working (the power led switchs on and off periodically). Due to this I was wondering if my current Pi 3 B+ power supplier can be used also with ...
user avatar
-1 votes
3 answers
73 views

How can I power a 4B from a DC power supply

I'm making a NAS with a Pi 4B, powered by a Meanwell RS-25 (5v 5a) psu. However, as far as I know, the Pi can only be powered via USB C, but the problem is all my breakout boards are limited to 500ma....
user avatar

1
2 3 4 5
15