Questions tagged [power-supply]

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

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21 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
23 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
69 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
163 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
49 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
50 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
65 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
41 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
388 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
88 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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40 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
42 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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42 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
52 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
54 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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1answer
330 views

Use MacBook charger for Raspberry Pi 4

I am using the official 15.3W USB-C Power Supply to power up my Raspberry Pi 4. I got my self a second Raspberry Pi 4 but I haven't bought the power supply yet. Would I be able to use the Macbook ...
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0answers
34 views

UPS for Pi 3B and hdd

I'm quite new to the Pi world, but I need a UPS unit to power both a Raspberry Pi 3B and a 2.5'' hard disk used by the Pi. I thought a power bank could be the right choice for me, but I cannot find a ...
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2answers
62 views

DS18B20 Temperature Sensor's Power Supply and Rpi's Pull-Down-GPIO-Pin Sinking Current Requirements

I have a RPi zero W and am reading four ds18b20 temperature sensors (with a 10K ohm resistor between the data and vcc line). Now and then I keep getting "SensorNotReadyError" from the sensors. My ...
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2answers
35 views

Can I power two Pi from a single Lithium battery?

I need to run at least 2 Pi together, one controlling hardware and another sensing its environment. I would like to keep weight down by using a single LiIon battery. I have one to connect to a PiJuice ...
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2answers
40 views

Is L293DNE Dual H-Bridge Motor Driver Chip/Board also a 5V voltage regulator/converter to power the Raspberry Pi itself?

Have been reading many articles showing how to connect DC motors to the Raspberry Pi and of course a DC Motor Driver Chip/Board is needed to come between DC motors and the Raspberry Pi GPIO Pins to be ...
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1answer
71 views

USB-C to USB-C Cable Recommendations for Pi 4

Based on the USB-C implementation issue in Pi 4 rev. 1, I'm looking for recommendations on a non e-marked USB-C cable to use for power. Having dug through my own cable stash, I've found a couple of ...
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1answer
76 views

Regularly power up an autonomous Raspberry Pi? (e.g. once a week)

I want to power a Raspberry PI from a power bank, which should give me - according to various sources on the Internet - 30 to 70 hours of operation. How can I power up the Raspberry Pi once a week to ...
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0answers
32 views

Reboot issues when plugging other devices into power

Model: Raspberry Pi 3b+ Raspberry pi 4.19.66-v7+ Raspbian Buster July 2019 edition Offical PSU. I have an Arduino uno powering off one of the USB ports on the PI. Nothing else attached. I have my ...
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1answer
56 views

How to power on multiple LED through 3.3V rail ? (Power supply problem)

I'm trying to use the 3.3V rail to power up 10 LED (20mA/LED). I read that the raspberryPi could supply until 1A through this 3.3V rail, that's a lot more than needed when all the LEDs are powered on....
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1answer
61 views

Reporting undervoltage, accidental reverse voltage

I've got a raspberry pi 3b+ mounted in my wall with the official 7″ touchscreen, and after some time i noticed the symbol in the top right corner notifying that it does not get the voltage it's ...
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1answer
1k views

How to choose a power source for Raspberry Pi 4?

I bought a R-Pi some days ago. We all know raspberry pi needs 5V 3Amp to operate. I have these options for the power source: I have an SMPS (Detached from a Desktop PC) which have 5 V and 15 Amp ...
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1answer
41 views

powering raspberry pi zeroW via computer usb port

I ran out of wall plugs for the Pi and I would like to power a zeroW via a USB port from my laptop. There are 2 microusb ports on the zeroW should which 1 should I use, the one near the edge or the ...
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1answer
47 views

Whether using a 3.4 Ampere adapter or Qualcomm QC 3.0 adapter to power a Raspberry Pi 3B+ can cause damage? [duplicate]

So here it goes,after looking out hundreds of pages regarding powering of Raspberry Pi 3B+ still some hesitations here. I have totally read this out very detailed & nicely written answer by ...
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1answer
266 views

Can a Raspberry Pi 4 be used as USB gadget but draw power from elsewhere?

Assuming that the Raspberry Pi 4 is attached as a slave to emulate different devices/gadgets using the USB OTG functionality available on the USB-C port: Is it possible to power the Raspberry from ...
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1answer
217 views

Compute Module 3+ Power supply

I am designing power supply for CM3+ board and got few questions. I decided to use 2 LDO's (3V3 and 1V8 outputs both from 5V usb VBUS). Wanted to ask if its good solution or maybe connect 1V8 to 3V3 ...
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27 views

RPi 3B power supply and external USB Hub issue

I am building a project with a custom USB hub attached to one of the RPi USB ports. On the custom hub I attach 7 USB devices powered by their own batteries. The custom USB Hub is equipped with an ...
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2answers
67 views

The best way to connect the 7” touchscreen

I have a pi 3 model B+ and the official raspberry Pi PSU, and the official 7” touch screen. I’m running Raspbian with all the latest updates. I have connected the display using a USB cable as ...
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2answers
73 views

About Power supply for Pi 4b [duplicate]

I have bought Pi 4b but now I don't wanna buy separate power adapter for it, I already have 5V,4A power adapter of my smartphone so can I use it for Pi 4b also??
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2answers
1k views

powering the RPi 4 + a 2.5" HDD with 1 power adapter

Ok, so here's the problem: I want to build a RPi 4 machine for gaming. From what I've read, if I want to attach a 2.5" HDD via usb 3.0 to the Pi 4, it will have to be powered somehow, since the Pi won'...
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1answer
105 views

Pi 3 w/Pisound - Won't turn on unless wait a few minutes

I have a Pi 3 and Pisound (hat) and to turn it off I just unplug the cable. Now oddly, if I plug it back in right away I just get a red light, no blinking yellow BUT If I wait a few minutes to plug it ...
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0answers
285 views

power supply for multiple raspberry pi4

I am wondering if any one knows of a power supply that will power 4 or more raspberry pi4 with the type C plug? (Yes I would like the full 3 amps or more) I thought of a standard ATX power supply, ...
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2answers
93 views

Voltage drop when RaspberryPi boots

Im trying to learn robotics with raspberrypi but im having a problem. I have 6 AA batteries in a batteryholder that are connected to a breadboard and with M-M jumping wires its connected to a LM2596S ...
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1answer
85 views

Powered USB3 Hub vs USB3 Y Power Cable

I have an issue that means I have to use a powered USB hub for the HDD that is attached to my RPI4 (long story). The hub just broke. My budget doesn't allow for a decent powered USB3 hub BUT does ...
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2answers
363 views

Power Rasberry Pi Zero W using LiPo 11.4V and 7805 converter

In order to power a Raspberry Pi Zero W, I'm using the 7805 converter to lower the ~11.4V from a LiPo Battery to 5V. The resulted voltage is about 4.96V. The Raspberry Pi starts to boot for about 20 ...
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0answers
49 views

RaspberryPi is not provided with enough power

Im trying to learn robotics with raspberrypi but im having a problem. I have 6 AA batteries that are connected to a LM2596S adjustable voltage regulator module, Which then is connected to the ...
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1answer
110 views

Battery Usage Pi Zero W for video stream

I am trying to do live video streaming from the rasberry pi, meaning the camera is recording a video and then transmitting the live video over wifi. What is the smallest battery I can use to power ...
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2answers
42 views

do RPi3 3.3/5V pins output constant voltage even if the RPi power supply is changing voltage?

I want to power my RPi with a lithium ion battery. The RPi will be powering some devices which require constant voltage to power them. If I use a battery as supply for the RPi (which changes as it ...
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1answer
947 views

Can I supply power with 5V 2Amp to Raspberry pi 4 [duplicate]

Can I supply power with 5V 2Amp to Raspberry pi 4? Currently 5V 3Amp chargers by Raspberry Pi are out of stock , so I am using phone charger with 5V 2Amp along with Type C adapter.
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2answers
73 views

Should I tear apart USB PSU or get a dedicated switching PSU?

I'm going to be using an Pi-3B+ to switch an AC and a DC device using one of the popular relay modules. This whole project is going to go in a custom screw-together project box that will have AC input ...
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2answers
371 views

Powering a Raspberry Pi without a micro USB cable

I want to attach a Raspberry Pi to hardware I'm developing. There is already +5v and GND available on the hardware. Is there any way to power up my Raspberry Pi from this (I just wanna avoid another ...
3
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1answer
408 views

How to make a splitter cable for the USB2 OTG port on the RPi 4B?

According to the answer to Where is the USB2 OTG port on the RPi 4 Model B located? the Raspberry Pi 4B has a "hidden" OTG port in the USB-C power connector. I found at Very simple OTG on pi4 and at 4 ...
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2answers
810 views

how does the Raspberry Pi PoE shield work?

I would like to do PoE for some Pies, but I dont like the real-estate the PoE hat takes up. what exactly is required for the PoE to work? what pins must I use on the raspberry PI, and what does the ...
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2answers
198 views

Convert 12V to 5V to power RaspberryPi

I have an Eleksmaker laser cutter which has a board with a 12V output (see top of image). I would like to power my RaspberryPi using this 12V output. What is the advantage of powering the ...
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0answers
30 views

Location of Voltage regulator on the pi-star zero

My pi-star is overheating and turning off. I was told that it may be the voltage regulator. Is this possible and where is it located or do you have a schematic for the pi-star.
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6answers
14k views

Choosing a Pi4 power supply

I'm trying to decide what is the best option for powering a Pi4. The specs mention for a minimum of 3A. Let's consider we would also like to connect a 2.5" drive to the Pi4. Could someone more ...

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