Questions tagged [usb-power]
Relates to powering USB devices from the Raspberry Pi
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Use external power supply
I'm a newbie
I have a circuit which requires 12v to drive some ESCs that go to brushless motors and 5V that goes to pin 39 of a raspberry pi pico, they share a neutral / negative to complete the ...
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Does it matter whether I use internal or external or sata or nvme drive in terms of power consumption for RP4?
I want to use an ssd to use raspberry pi with home assistant and I’ve found some information that an external ssd may require too much power and be unstable with the RP4. Is this true? Is one type ...
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USB-C for power output when using PoE+ HAT
When using the PoE+ HAT with the raspberry pi 4B, would it be possible to use the USB-C port as a power output, rather than a power input, for instance for an extra fan when the GPIO pins aren't ...
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USB dongle for remote control doesn't wake up
A bit stumped on this one, hoping any of you fine people can assist...
I have a 2.4g remote control with a USB dongle that I'd like to use on a Raspberry Pi Zero 2 W running Raspbian Lite 32bit. When ...
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Is it ok to usb micro male - micro male for USB device?
I am hooking up an arduino micro to my Pi Zero W.
For space, I used a short micro male-male USB cable:
https://www.amazon.ca/CableCreation-Micro-Kindle-Android-Tablet/dp/B01M5GZ3N0
When I use this on ...
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1
answer
39
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Can I power my PI via USB if I Disable USB?
I learnt that I can disable the USB circuitry with this command:
echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/unbind
Does doing this disable USB power too? Or just data/connectivity?
I would test ...
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42
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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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Disable USB until boot is complete
TLDR; I want to disable the USB hub on a RPi4 until boot is complete.
Hi, I am trying to solve a problem that I have not seen posted about.
I have a RPi4 with multiple RPiZs plugged into it acting as ...
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1
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What damage can a Y-Cable plugged to the the USB-A 3.0 port do to the PI400? [duplicate]
I'm using a USB Y-Cable with my Pi400 to power and use an old WD 2TB MyPassport Usb3.0 HDD. I'm using a separate 5v-1a PSU so the HDD doesn't have brown-outs.
So far I've been using using the cable ...
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Y Cable to power Usb3 HDD on Pi400
I'd like to use an external usb3 2Tb WD MyPassport 5200rpm HDD with my Raspberry Pi400 for a large Retropie project.
I think having it running powered from the Pi400 alone is not giving enough power ...
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Which micro usb port if preferable to power pi zero?
Pi zero w has pwr micro usb and normal micro usb. Both of them can be used to power the pi.
What is the safest way to power pi zero w, via pwr micro usb or data micro usb?
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Can the Raspberry Pi 4B power 2.5 hard drive and SSD without a USB hub?
Does Raspberry Pi 4 model B power one 2.5" Seagate 2TB external hard drive and a M.2 SSD connected via USB? Will official power supply suffice powering both and Pi?
Any help or insight is highly ...
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Can Raspberry Pi 4 benefit from 3.5A power supply?
Experiencing external SSD data corruption issues which I believe are related to power issues.
Evaluating if it’s worth upgrading power supply from official Raspberry Pi 3A USB-C power supply to Argon ...
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I broke access to my raspi with uhubctl
I had my Raspi 3B+ running old raspbian Jessy. I was connecting to it by ssh. I have installed uhubctl.
uhubctl is a tool which can turn off power supply for USB port.
I got
# uhubctl
Current status ...
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Is raspberry pi 400 USB-C otg mode working, and if so, is it only in slave mode? [duplicate]
So I got myself a Raspberry Pi 400, because I couldn't find 4B 4GB at reasonable prices. Sadly, as I explained on the sister site, my tinkering soul suffers lack of USB ports. I can connect what I ...
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How to support the power supply of servo motors using an ordinary AC-to-USB adapter?
I normally power my Raspberry Pi Pico via a USB connection to my computer. However, when working with servo motors, the motors can draw quite a bit of power, destabilizing the USB communication ...
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3
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Troubles with External Dual USB SSD Drives for NAS Setup
I am attempting to create a Raspberry Pi 4 NAS setup.
I purchased two Seagate Ironwolf 125 1TB SSD USB (pdf warning) disks.
The trouble that I am having is that the RPI will not always recognize the ...
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Do they Pi4 and Pi2W have a USB cc controller for power?
I'm making a little custom battery pack for my Pi4 and Pi2W.
Do they have a usb-cc controller on board (on chip)?
I did not see it in the schematics just the drama of the wrong resistor config on the ...
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1
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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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Maximum power draw on Pi Pico 3.3V rail with USB power
The Pi Pico datasheet recommends a maximum power draw on the 3V3 pin (pin 36) of 300mA. However, the RT6154B datasheet indicates that up to 3A can be drawn when Vin > 3.6V, which is the case when ...
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Insufficient power for RPI + 7" Touch Screen
I have a raspberry pi 3B. It is connected to a 7" RPI Touch screen, (made by RPI). The screen gets 5v from the pi and the pi is connected to a 5v, 2.1A USB power pack.
For some reason the power ...
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Raspberry pi-4 powered usb hub backfeed issues
I have a Raspberry SC15184 Pi 4 server and I'm looking to power 3 USB peripherals each with a 3-6W power requirement (which should be 0.6-1.2A given pi-4 operates at ~5V).
This is above the 1.2A ...
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2
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123
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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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Using a PD USB hub for power and data for Pi 4
I want to use a 7" LCD (not the official Pi 7" LCD) together with the Pi 4. According to the LCD documentation, it requires 2A. I was planning initially to power the LCD through one Pi.
Now ...
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Raspberry PI4 usb 3.0 seems not working properly [duplicate]
I am using a Raspberry PI4 with Google Coral TPU and a Telit Lte modem both attached on USB 3.0 ports. I get a lot of "Under-Voltage" messages also using the Raspberry power supply(5.1V, 3A)...
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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 ...
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Random disconnection of an USB Camera with Raspberry Pi 4
I've got a Raspberry Pi 4 with an USB2.0 camera connected through a slip ring. When I boot, there's no problem at all, but sometimes the Raspberry is unable to detect the camera while streaming (I'm ...
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1
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How to Use RTC Module (DS1302) to specifically Execute a Program at a Certain Time
I had already completed a Setup of DS1302 on my Raspberry Pi 3B+ and fortunately its working just fine.
I also already solved the Problem of Turning On and Off the USB Port using "uhubctl".
...
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2
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57
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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 ...
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291
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Delay booting devices or booting the kernel
BLUF: I'd like to see if there's a solid way to delay the boot-up of the kernel to keep a Pi from sucking up a lot of juice out of the gate, or the USB bus to delay the devices' boot-up until after ...
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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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1
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745
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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 ...
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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.
...
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2
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283
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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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79
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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 ...
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Error opening device /dev/video0: video capture not supported
I am trying to set up USb camera with RPi4. It is working well with PC windows10 default 'camera' application but failed with RPi4. I use mjpg-streamer to access the streaming.
/usr/local/bin/...
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1
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300
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Pi Zero 2: insufficient power from USB port
i want to use my EzCap269 video grabber with my new Pi Zero 2. Unfortunately the video grabber won't work (power led is off) - so i assume it's getting not enough power (it's a USB3 device). I'm using ...
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Can you damage the pi's USB controller by constantly applying and removing power to it?
I have a pair of USB powered fans. I currently have them connected to a Raspberry Pi 3b+ via one of the USB-A connectors, drawing power from the pi.
I have two cron jobs set on the pi - one that ...
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Does the power port of the Raspberry Pi 3a+ have lines for transfering data?
Im getting a Pimoroni Power On Off Shim for my Pi 3a+ and wonder if i could use the original power micro USB-port for data stuff, like connecting a 3D printer or a webcam - since the 3a+ lacks ...
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Cutting power to USB port on a RPi 3A+
I am running a Raspberry Pi 3A+ in my car as a DIY Android Auto head unit (using Crankshaft).
In order to not have the RPi immediately shutdown when you remove the key from the ignition (or have it ...
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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 ...
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Connect USB hub to RPi 4 USB C port to power the Pi and access peripherals?
I want to connect an RPi 4 to a bunch of USB peripherals and a power source that are about 3m away from the Pi, using only one USB cable (because that seems a lot neater than multiple cables and ...
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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....
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Pi 4 doesn't recognise SSD
I bought new Pi 4 8GB from authorised seller including power cable. It recognises HDD and works fine. But it doesn't recognise SSD (crucial mx500 1tb sata 2.5-inch 7mm internal ssd). This SSD works ...
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Connecting hub to 1 USB port vs 2 USB ports?
The Pi 4B has 2x USB 3.0 ports. I have 2 choices to connect my hard drives:
Using a single 10-port hub which connects to 1 USB 3.0 port.
Using two 5-port hubs which connect to two USB 3.0 ports.
...
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Is it safe to change the power settings to allow raspberry 400 to power using usb?
I recently got a raspberry pi 400 and wanted to use it as a portable device but realised that it can only get full power when plugged into a power socket.
I saw a video showing that you can use it ...
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2
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1
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Are schematics available for the newer RPi 4 with fixed USB-C power circuit?
Early editions of RPi 4 had hardware design issues in the USB-C port. (Ref: 1) Since then an updated board has been issued. However the official schematics still show the old USB-C Power In circuit (i....
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How to recover Raspbian/Raspberry Pi OS boot media after power failure
There are many questions similar to mine and none with a coherent applicable answer.
Setup
Raspberry Pi OS Buster; up to date. Raspberry Pi 4B. Red LED has a steady glow: current is stable.
Both ADATA ...
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Raspberry pi voltage between PP3 - PP27 is 0.01V is this normal?
I measured voltage using a multimeter between PP3-PP27 and it was fluctuating between 0.01V to 0.06V is this normal? The entire problem can be found here: USB ports recieving power but not working on ...
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over-current condition on usb port when connecting arduino nano
Hi I am trying to power an arduino nano via usb port. I am using a 5V 3A power supply.
I have 2 different usb cables. One lights up the arduino, but it is not recognized in /dev/ttyACM0
The other one ...
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