Questions tagged [power-supply]
The methods for powering the Raspberry Pi (typically via its micro-USB connection.)
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questions
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1answer
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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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0answers
57 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
17 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
49 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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1answer
55 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: ...
4
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2answers
398 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
29 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
27 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
89 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
166 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 ...
0
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1answer
143 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
55 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
71 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 ...
1
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1answer
45 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
396 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
142 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
41 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
44 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
52 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
70 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 ...
0
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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:...
2
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1answer
619 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
81 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
37 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
45 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 ...
2
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1answer
74 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
77 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
33 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 ...
3
votes
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
63 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 ...
2
votes
1answer
42 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
52 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
331 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
257 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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0answers
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
74 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 ...
0
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2answers
79 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'...
0
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1answer
107 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
310 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, ...
0
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2answers
109 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 ...
3
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1answer
88 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 ...
2
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2answers
377 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
54 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 ...
2
votes
1answer
146 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
47 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 ...
0
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1answer
1k 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
77 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 ...
