Questions tagged [power-supply]

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

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9 views

Raspberry Pi B don't start

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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1answer
34 views

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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5answers
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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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1answer
35 views

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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3answers
65 views

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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1answer
14 views

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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1answer
115 views

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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1answer
42 views

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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1answer
51 views

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 ...
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0answers
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Buttons connected to uart including standby/power button

I have a electronics project (32x32 Pixel led panel) with a raspberry pi as computing unit. This device has a self made PCB with holds 2 voltage regulators, one for the onboard micro controller (atmel ...
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3answers
49 views

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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1answer
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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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2answers
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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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3answers
33 views

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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1answer
53 views

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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1answer
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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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1answer
34 views

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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1answer
48 views

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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1answer
47 views

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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0answers
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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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1answer
75 views

How can Rpi I2C read a Coulomb Counter, up to 18V, 10A?

I"m building an autonomous boat with a solar panel. The heart of the boat is a Raspi zero which contains a small program doing the navigation. I've got a 3S li-ion battery of which I'm already ...
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1answer
43 views

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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2answers
622 views

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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1answer
33 views

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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1answer
55 views

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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3answers
559 views

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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2answers
129 views

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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0answers
67 views

What power supply do I need to power three raspberry pi 3/4 and powered usb hub

I want to build a raspberry pi cluster with two RaspberryPi 4, one Raspberrypi 3 and a usb powered usb hub. in the past I used the MeanWell, RS-25-5 with 25W 5V 5A for just one Pi and usb hub. ...
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1answer
50 views

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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1answer
225 views

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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0answers
68 views

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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1answer
18 views

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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1answer
92 views

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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2answers
255 views

Rpi4B 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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2answers
722 views

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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1answer
61 views

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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1answer
42 views

Can I use 12v and 8amp battery with L298 motor driver

Can I use 12v and 8amp battery with L298 motor driver with raspberry pi model?
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1answer
167 views

Power Supply Raspberry pi 4

I have googled a lot but didn't find anything useful. Can I use any power adapter other than the official Raspberry Pi supply? Moreover, I have an Argon One Case and many people have recommended ...
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2answers
182 views

Can you connect a power supply in series/paraellel to 5V & Ground GPIO pins

I am controlling a stepper motor and an LCD screen from one raspberry pi. Originally, the motor and screen were powered from the 5V output pin on the raspberry pi. I found that this would draw too ...
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1answer
487 views

I would like to add a battery to my Raspberry Pi 4. Can i do this by soldering to tp7, tp12, or tp1 on the underside of the board?

I would like to add a battery to my Raspberry Pi 4. I am building a tablet that can be turned on and off by a switch that brings power from the usb port from a power bank to power the pi, can i tie ...
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3answers
65 views

I've got this mobile charger and I'm wondering if I can use it to power my pi4. If so, what should I look out for when buying a usb2-usbC adaptor?

I've got this mobile charger and I'm wondering if I can use it to power my pi4. If so, what should I look out for when buying a usb2-usbC adaptor?
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1answer
92 views

Power off Raspberry Pi if charger of powerbank is connected and turn back on if disconnected

I have a (maybe trivial) problem. I want to power a Raspberry Pi (more specific a SteroPi) with a power bank. The power bank has the feature, that its output is always on. So even if I plug in a ...
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1answer
50 views

Raspberry 3+ b and two external usb drives: lack of current

I've encountered the following problem: when I connect 1 external usb hdd to my Pi, everything works fine. But when I connect second one with the same characteristics, both drives are not usable. I ...
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1answer
406 views

Powering difference between different Raspberry Pi 4 models

Raspberry Pi 4 has three models which have 1GB, 2GB, and 4GB of RAM. Is there any difference between these models for powering?
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1answer
407 views

5v/12v power source/submersible water pump/RPI/relay. What kind of combination is suitable?

I am using a 12v DC water pump with a 20 l/min flow rate, a raspberry pi 3B and a distance sensor. I would like to use a relay and an external power supply to control turning on/off the water pump. so ...
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0answers
43 views

Beginner help setup

I've set up my rasberri pi4 month or so ago and tried to restart but stuck on screen with color stripes please help
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1answer
52 views

Small, Rechargeable LiPo and RPi 4B

I've started a new, more specific thread, here. I'm looking for a way to power my Pi 4B inside a 3d-printed laptop project (nothing has actually been started yet), and it would be great to hear what ...
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0answers
70 views

Raspberry Pi alternative with low power mode? [closed]

The Pi has no low power mode. That's a shame. Is there anything like the Pi that does have a low power mode? Is SleepyPi or switching to ESP32/Arduino the only way?
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2answers
125 views

Powering the Raspberry 3 B+ with PSU

I have a PSU from Amazon that provides 5V and I used my trusty multimeter to adjust the voltage to exactly 5.0V. I used it previously to run some silent fans, but I don't have any use for that anymore ...
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1answer
57 views

Raspberry pi3 power supply

I want to buy a power supply that is good both for my PIC16 environment (breadboard with 3.5V - 5V power bank) and for my raspberry 3PI. Than I choice a 5V 3A power supply with a USB exit from Amazon:...

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