Questions tagged [power-supply]
The methods for powering the Raspberry Pi (typically via its micro-USB connection.)
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Powering RPi 4 Model B with 5v 3A Car Power Supply Module
I would like to use a buck converter between a 12V DC power supply and my RPi4, and found this car power supply to be appealing. It claims to step down from 12V to 5V 3A, which is almost the same as ...
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Monitor the power consumption in real-time (in Ampere or Watt)
I'd like to monitor in real-time the power consumption of a RPi.
(0.5A, 1A, 2A, etc.)
I know this can be done with a multimeter in ammeter mode in series, but I thought maybe there is an easier method,...
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2,5" USB external hard drive not detected
I plugged a 2,5" USB external 500GB hard drive to a Raspberry Pi 2 (Model B Rev 1.1), but it is not detected:
there is no /dev/sda, /dev/sda1
lsblk does not display the disk
lsusb shows a few ...
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Should I power RaspPI + peripherals from hub or use GPIO?
I’m planning my first “proper” Raspberry Pi project.
I want the end result to be user friendly, and so should use only a single power source.
But internally I need to power several separate devices: ...
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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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Powering HDMI splitter from Raspberry Pi Zero W
I have a base zero W that I want to turn into a receiver for spotify connect and some old speakers that connect via a 3.5mm jack.
I want to get audio out of it that isn't horrific sounding (such as $5 ...
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Mean well power supply for rpi through GPIO [closed]
I have a Mean Well Switching power supply 5V. I have connected 5V output to rpi's 3b+ gpio pins to power it up, but the supply is just going up/down like it has no power drain.
can you recommend how ...
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Why does my Pi Zero keep shutting down by itself?
I am trying to make a smart plug that activates a relay when it receives a certain message via MQTT. It works, but the Pi shuts down randomly, both when the relay is active and when everything is just ...
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Powering Raspberry Pi via battery pack and buck converter - how to solve low voltage reboot issues
I'm trying to power a Raspberry Pi 4 via a 6-AA battery pack via buck converter which steps it down to 5V but it gets stuck in a reboot loop on boot up.
Watching the display on the buck converter, the ...
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How can I use a GPIO input pin for a 12v circuit?
I want to know with the raspberry pi if the button is clicked.
I want ot use the button of the GPIOZERO python library.
The power plug is a 12v power plug.
Can this circuit work?
(I'm a beginner.)
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Pi Zero with RS-485 interface operated inside breaker panel crashes
Setup
I am operating an Raspberry Pi Zero inside a distribution board. The pi is powered via usb using a din rail power supply and it connected to an usb-rs485-adapter to get modbus data from a smart ...
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Physically turn the Raspberry Pi Touch display on and off with a switch
I use a Raspberry Pi Touch Display that I connect like shown in the following picture to my Raspberry. The black and red wires are connected to thee GND and 5v pins respectively. Now I want to ...
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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 ...
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How to hold the date that has been set on an improper shutdown?
I've noticed that if I set a date through the timedate command, let's say
date -s "2 OCT 2006 18:00:00"
and I reboot the Raspberry or I do a proper shutdown the system hold the right date, ...
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Can I use a TP4056 Micro USB 5V 1A instead of a powerboost 1000c to a Raspberry Pi Zero?
I am using a Raspberry Pi Zero and to make it rechargeable I need a Powerboost 1000c (from https://www.adafruit.com/product/2465) would I be able to supplement this for a TP4056 Micro USB 5V 1A?
This ...
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Red Led flashing
I have a PI 4, WHEN using a 3.5A USB power measured 5.1v supply, the red LED is constantly on. When using a power supply which was rescued from a DVD player, checked supply 5.1v I get a flashing red ...
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How should I power multiple RPi 3 units from a beefy power supply? [closed]
I have to power 20 Raspberry Pi 3 units from a few 5V 10A power DC power supplies. I have little experience in electronics. The RPis can be up to 1.5m apart from one another. A friend of mine ...
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Raspberry Pi B don't start [closed]
I try to boot from Rasbperry PI 1B version 2011.12, but it only shows the Red light but nothing happen. I try difference OS with no luck.
The problem is the power?
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Keep running Pi while charging batteries [closed]
I would like to build a simple automatic irrigation system with Pi zero, the thing is that I don't have access to electricity outside.
I thought to connect 5v solar panel + 3\4 chargeable batteries.
...
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power troubleshooting
I am trying to power a raspberry pi 3 over a long distance (5 meters). I can power the raspberry pi with the standard power supply from Raspberry Pi itself, but when I use these:
https://www.digikey....
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Can i run my raspberry pi 24x7 with the solar power bank? [closed]
I wanted to run the pi with a pi cam and internet module for 24x7 for lifelong, can i do that if i am using a 10000mah solar power bank
https://www.amazon.in/dp/B07DB5FT9H/ref=...
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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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Raspberry Pi not booting - red power light, no ACT light
I shut my RPi3 Model 3B+ down earlier with sudo shutdown now, and while it was shutdown, but not disconnected, we had a power outage. When the power came back on, the Pi would not start.
The red power ...
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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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Mirabox Capture Card and External Power Source
I'm looking to power my Raspberry Pi 4B from a 12V tractor battery. I have a buck converter which can be found here. I am considering using this device to step-down the battery voltage and hook up the ...
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external power supply [closed]
Using Rpi4. Using camera and IR lighting.
Would like it to be powered by rechargeable batteries.
What are my options..
I have found 'holding cases' for AA batteries but only for Raspberry 3s.
I have ...
user11286
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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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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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Under-voltages while powering a Pi 3A+ via the +5V/GND pins
I need to power my Pi 3A+ via the pins (not the onboard micro USB) so I can put the power connector anywhere I want in my custom box. I have a separate micro USB female connector connected via two ...
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Best voltage for a Raspberry Pi 3B
I have 5.0V 3A and 5.2V 3A regulated supplies that I can repurpose for my Raspberry Pi 3B project. Am thinking of using the USB power jack. Which should I go with?
5.2V would seem to be within the ...
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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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Is it possible to control the 5V supply (e.g. pin 4) via python?
I want to (de)activate a fan, which is connected to the pins 4 and 6, depending on the temperature of the CPU.
Is it possible to (de)activate Pin 4 (or Pin 2) at the Raspberry Pi 4 via python? I have ...
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How can I expand the 5V pins?
I require 2 more 5v pins to be used - as I would like to avoid welding the 4 wires directly to the 5V pins, I wanted to know if it would be possible to expand those pins.
I would require a small ...
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Is it safe to power Raspberry Pi 4 with 8V?
I have a ESC control from an RC car similar to this one:
and although it says it has a UBEC of 6V, I measure 8V when I supply the ESC with two 18650 batteries in series.
I want to supply my Raspi 4 ...
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What happens when power goes off suddenly?
I have a pi 4. While running it, the electricity was gone.After electricity was back, it was working perfectly.
What can happen if this sort of power cut occurs multiple times?
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Isolate Raspberry pi from power supply on shut down
Ok Team I need to know if this circuit will work or if there is a better way.
Use Case:
I have a piece of machinery that is controlled via a Raspberry pi zero W. It just controls a relay board to ...
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How to power Rpi4B and 12V solenoid at the same time?
i'm new in raspberry pi. i want to parallel powered my raspberry pi with 12 v and 5 amp, because i want to powered not just the raspberry pi. i want to powered a solenoid too that run in 12 volt and ...
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Raspberry Pi 4: turn red LED off (via software)
I have an RPI 4 in my room. When I sleep the red light fills a big part of the room. I don't want to turn the pi off as I want 24/7 availability. Its ability to be quiet and always available is why I ...
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Wifi not connecting depending on power supply
I am using a RPI 3 B+ with a Touchscreen. It worked for almost a year but since 2 weeks the pi is no longer connecting to wifi. The adapter is there, I can even select my wifi, enter my password but ...
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Running pump & servo - Relay needed?
simulate this circuit – Schematic created using CircuitLab
So I am working on a project that will require both a servo motor plus a small water pump.
Both run on 3.7 -6v and I am going to use ...
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Constant undervoltage, despite meter showing otherwise
I have a Raspberry Pi 3B+, running Raspbian.
Linux raspberrypi 4.19.97-v7+ #1294 SMP Thu Jan 30 13:15:58 GMT 2020 armv7l GNU/Linux
It server primarily as a MagicMirror2 machine.
I can see the ...
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How to add Capacitors to Raspberry Pi
My goal is to add capacitors to the Raspberry Pi power-supply.
Currently I have my raspberry Pi plugged straight into a portable 5v battery, this works fine.
However, I want to be able to swap from ...
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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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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 ...
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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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Can I power the raspberry pi 0 w off of both ports at once?
I want to solder a male usb port to my Pi, so that it can be a little dongle computer. However, if I power it with a powerbank, and while it is still being powered, plug it into another power source ...
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External power supply to servo motor [closed]
The servo motor(I'm using MG996R) needs lots of power to run through the raspberry pi board power supply. so I decided to supply it externally using an SMPS box. when the servo is connected to 5v of ...
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RPi 4B smart UART UPS PSU troubleshooting problem
I have a MakerFocus Raspberry Pi 4 Battery Pack (Amazon).
Trying to figure out the serial interface for it but documentation isn't great. I've found only this packet so far that the board sends: ...
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Power Pi4 with USB-C Power Bank
Can a USB-C Power Bank be used to power a Pi 4 for off-grid or mobile uses where the Pi cannot be tethered to either a mains electric socket or a POE switch?
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Can I power up the PI with the LDO MIC29300
I am using the MIC29300 https://www.microchip.com/wwwproducts/en/MIC29300 in my circuit to generate a 5V signal to my ADC (works fine now)
Would it be possible to grab that 5V line and have it ...
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