Questions tagged [alternative-power]

The methods for powering the Raspberry Pi via sources other than its micro-USB connection.

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Powering a pico with a lipo battery charged by a bike dynamo

So, I am building a gps tracker build on raspberry pico and a neo 6m gps module. Now, I want to power this project with a lithium battery that can offer some autonomy. I was thinking of using a , ...
Edoardo Balducci's user avatar
0 votes
2 answers
473 views

How do I prevent raspberry pi automatic turn on when I connect the power plug?

I connect the power in plug. After that raspberry pi automatically turn on . But I want it to be on when I press the button, how can I do this?
SURESH BHATI's user avatar
-1 votes
2 answers
161 views

gpio-poweroff configured as input: how can I read the input pin?

I am developing a power supply with a supercapacitor to give around 30 seconds of reserve power so the pi can safely shut itself down on power loss. I have a working gpio-poweroff definition in /boot/...
Marc's user avatar
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1 vote
0 answers
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Powering Raspberry Pi 3B+ with Multiple Attachments: Recommendations for Portability

Ok so I'll try and keep this short and sweet. Basically, I have all these attachments for my Raspberry Pi 3B+ Raspberry Pi 7" Touchscreen Case for Touchscreen w/ Cooling Fan Raspberry Pi Camera ...
Liebmann5's user avatar
2 votes
3 answers
558 views

Powering Pi 4B with dead PMIC

One of my many Raspberry Pi 4's in one of my clusters recently broke down. After some troubleshooting, I was surprised to find out, that the power circuit on the board was actually toast. I have no ...
Caeleste's user avatar
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-1 votes
2 answers
459 views

Detect shutdown via GPIO

I run one of my Pis with the Geekworm X735 power hat, which adds a button to power on, power down or reboot the Pi, along with a power LED. However, the power board does not seem to be able to detect ...
user149408's user avatar
0 votes
1 answer
62 views

Backpowering from Arduino on USB

I have connected an Arduino MEGA2560 with the Raspberry Pi B+ V1.2 via USB The idea is to use the Raspberry Pi as gateway to remote flash the Arduino. So I switch on the Arduino and the Arduino ...
apani's user avatar
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2 votes
2 answers
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Power Pi Pico by applying 5 V to VSYS—any experiences with or thoughts on additional safety measures?

The official Pico datasheet chapter 4.5 suggests using either a Schottky diode or a P-channel MOSFET (P-FET; or a combination of both) when powering the Pico from an external power source (at least if ...
Manuel Popp's user avatar
-1 votes
1 answer
534 views

Using Run Pin for Startup on pi zero w and v2

I'm planning on running a pi zero 2 connected to an arduino over uart for a personal project, but I'm using a pcb and I want to power it on and off without using any cables. My current plan is to ...
Shravan Mandava's user avatar
-3 votes
1 answer
277 views

How much powerful solar battery do I need to power the Raspberry Pi 4B at load and charge batteries to enough energy amount to work at night? [closed]

I need Raspberry Pi that will work autonomously long time. I think about solar panel what will power Pi at day and charge batteries for the night work till the next sunrise. So, how much powerful ...
Robotex's user avatar
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2 answers
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Powering Raspberry Pi 4 with a hat

I want to power my Raspberry Pi 4 and a hat separately. I have a 2200 mAh 3S LiPo and 2x 3.4 V 18560 batteries. If I just cut off the 5 V pin from the Pi and power the Pi from the LiPo batteries, ...
Healthyturnover's user avatar
1 vote
2 answers
702 views

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 ...
Zaffresky's user avatar
0 votes
2 answers
462 views

Dual Power a Pi from POE and USB input?

I have a Pi4 with the standard raspberry-pi branded POE hat, and it works fine. It is installed behind a monitor, which has USB ports. So I thought to add a USB-A to USB-C cable from monitor to Pi as ...
Criggie's user avatar
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1 vote
7 answers
879 views

How to daisy chain the power across two Pi's

Similar to Can I power a Pi through a 5V pin?, but I want to acquire the 5V power source from another Pi. The first Pi gets its power via micro USB, and then I want to use pins 2 and 6 from that to ...
Andrew Arnott's user avatar
3 votes
2 answers
899 views

RPi4 won't power on from 5V if any load is present on 3V3

The short version: Raspberry Pi 4B, rev 1.1, doesn't turn on when provided with 5V on the pins 2&4 if any load is present on the 3V3 (pins 1&17). However, powering the Pi from a USB-C source (...
MJBogusz's user avatar
0 votes
1 answer
173 views

What power supply can I use for 2 servos?

I am a complete noob when it comes to raspberry. I have 2 servos MG996R that I need to power from an external power supply. Currently I am doing it from the board, and when I turn both of them the ...
feedy's user avatar
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4 votes
4 answers
3k views

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 ...
g491's user avatar
  • 143
2 votes
1 answer
80 views

finding a 3.3V "micro-computer" to be used as a co-processor in some low power applications [closed]

I am working with some "low power" applications in which a 3.3V micro controller with some electronics around it logs some information for 20 minutes, and then the information needs to be ...
Zorglub29's user avatar
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-2 votes
1 answer
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Short circuit with male-2-male usb cable

My RPi 2B constantly sensed voltage drops on my 2 A charger. Since I know that I can additionally use one of those old USB Y-cables from external disk drives to support the power rail on my RPi 3B (...
Suuuehgi's user avatar
0 votes
1 answer
171 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 ...
gumby4231's user avatar
2 votes
1 answer
6k views

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 ...
Hitman2847's user avatar
1 vote
2 answers
369 views

powering a pi 3B using two 18650 batteries in series. what circuits do I need? [closed]

I have an raspberry pi 3B I want to use as the brains for a robot car. In my initial setup I used a power bank for the Pi and a powered the motors using a seperate pack of two 18650 batteries in ...
Marc Wagner's user avatar
2 votes
4 answers
340 views

Can I use my acer chromebook 11 charger to power my raspberry pi 4b?

What does it mean when my acer chromebook 11 charger says "5v ⎓ 3a / 9v ⎓ 3a / 15v ⎓ 3a / 20v ⎓ 2.25a" on the ac adapter? I want it to output 5 volts with 3 amps, but I am confused at why it also has ...
answerplease's user avatar
0 votes
1 answer
1k 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 ...
kramer65's user avatar
  • 315
3 votes
1 answer
2k views

How to connect Rpi4B to a HDMI Touch Screen?

I have recently invested in a HDMI touchscreen from Amazon, and a Raspberry Pi 4, For the touchscreen to work it must be connected via GPIO, however my pi cannot supply enough power to it from my usb ...
Big Bob's user avatar
  • 31
1 vote
0 answers
160 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 ...
mach3's user avatar
  • 11
6 votes
2 answers
5k 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?
F1Linux's user avatar
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2 votes
0 answers
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How do I power an IR LED signal that is 50 feet away?

I'm building an IR blaster with an LED that will be wired 50 feet away from the circuit. I'm going to use this 18 gauge wire to extend the LED connection. I'm using a GPIO pin connected to a BC547b ...
Michael Khalili's user avatar
1 vote
1 answer
170 views

Raspberry Pi Low Power warning when connecting without USB cable

I'm trying to connect power to Raspberry Pi 3B+ directly without USB cable, as in this question. I've tried both connecting the 5V and GND extension pins as in this answer and connecting to PP2 and ...
levsa's user avatar
  • 121
1 vote
1 answer
104 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 ...
Galaxy's user avatar
  • 65
1 vote
0 answers
85 views

How to power RPi with fan from single source?

Electronics beginner here. I have Raspberry Pi 4 GB variant. I have the following power requirements: power a 5V cooling fan 12V cooling fan (a spare cooler master)thanks @Milliways safely (i.e. ...
RinkyPinku's user avatar
1 vote
0 answers
102 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 ...
dcfg's user avatar
  • 111
3 votes
1 answer
5k views

USB problem on Raspberry Pi 4 won't boot

I have a strange problem with a Pi 4. I have my Raspberry Pi 4 powered by an external alimentation 5V 2 A, there are two USB devices connected (an Arduino Mega and the touch USB for the display) and ...
Buisson's user avatar
  • 181
0 votes
1 answer
1k views

Are there any battery backup options that work with a PoE powered Pi?

Looking to have a Pi (4) that is powered over PoE - are there any battery backup options (i.e. hats) that can be stacked with the PoE hat & supply power if/when the PoE fails (and then re-charge ...
user2813274's user avatar
  • 1,289
4 votes
2 answers
10k 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 ...
master_yoda's user avatar
0 votes
1 answer
268 views

Power Pack for RPi 3

Is there a popular ups power shield that can be used to with RPi 3? Ideally I would like to write some code in Python to monitor the battery status of the power pack and also still have access to the ...
3kstc's user avatar
  • 131
0 votes
1 answer
1k views

How to power a Raspberry Pi 3B+ with DC-DC Boost Convertor module (3.5v to 5v) via GPIO Pins

I am trying to power up a Raspberry Pi 3B+ via GPIO pins and have read about the specs to provide 5V input voltage. Since there are no batteries that can directly output 5v - i had to fallback to 3.7V ...
Swaroop's user avatar
  • 101
1 vote
2 answers
277 views

Power Raspberry Pi using GPIO Pins and a 10A supply with 7805

I am currently working on a project where i have micro-controller,stepper drivers etc all powered through a single 12v 10a power supply. I was planning to use the same supply to power the raspberry pi ...
jesvin palatty's user avatar
0 votes
2 answers
614 views

Can I power a raspberry pi and motor hat from the same source?

I have a raspberry pi 3 and an Adafruit motor hat. The motor hat is powered from a 24v wall plug adapter while the pi is powered from a 5v one. I'd like to save a wall outlet and cleanup the wires (...
everett1992's user avatar
4 votes
1 answer
1k views

Under-voltage problems when using the new PoE hat

I'm experiencing some issues with the new PoE hat when using my NETGEAR gs108pe PoE switch. Basically when I use my raspberry pi 3B+ with only my HDMI monitor and a USB serial converter attached (...
Linus's user avatar
  • 529
0 votes
2 answers
1k views

Raspberry Pi 3B+ with a 2.5 hdd is the power always on?

Background I do not own a Raspberry Pi yet so I could not test this but I plan to get a 40 watt 5 port USB charging hub and have that power the Pi and a 2.5 hard drive (HDD); yes in this scenario 3 ...
Blizzardengle's user avatar
0 votes
2 answers
839 views

Powering a number of Pi from a single bench top power supply [closed]

I'm thinking of investigating the Bitscope Blade QUATTRO to host up to forty boards. Looking at the details each Blade can power the boards off a single supply, which need not be at 5V with up to 3A (...
Nick's user avatar
  • 776
1 vote
3 answers
928 views

Make Pi take photo every day (power?)

Quick question for a kinda pointless project: Does anyone have any ideas on how I would be able to make a raspberry pi + camera (3rd party or official) take a photo every day for a year? - problems ...
Command-Alt-Escape's user avatar
0 votes
4 answers
1k views

Power Requirement for Pi 3

I have a Raspberry Pi 3 Model B, and I wish to make a tablet with it. I am using the WaveShare 7inch touchscreen, the pi camera V1, a USB hub and an external CD/DVD drive. But when I got everything ...
overwerk's user avatar
0 votes
5 answers
325 views

Connecting 5V / 2A DC adapter positive line to GPIO

I have a working DIY UPS for my Raspberry PI 3B board. My requirement is that whenever the main power goes off the PI, the software should be able to detect it and immediately trigger a graceful ...
moosambi2020's user avatar
1 vote
1 answer
531 views

Supply 5v to peripheral using solder pads and not GPIO?

This seems like a simple enough question but it hasn't been easy to find an answer! I have a Pi3 (with recommended PSU), official screen, official camera and I've now added the respeaker 2-mics Pi ...
Finbar Maginn's user avatar
0 votes
2 answers
1k views

Power Pi Zero with 3.5V?

I have an old, completely analogue phone-entry system in my flat. I'd like to play with using a Pi to interact with it, e.g. sending a notification to my phone when the buzzer rings. I've measured ...
Tom Medley's user avatar
  • 4,089
0 votes
1 answer
205 views

Raspberry Pi power supply

This has been asked and answered many times, but my specific question is not in the list of results when I search. I have a nominal 2.6A supply here, and it remains stable at 5V up to exactly this ...
user2497's user avatar
  • 679
1 vote
1 answer
476 views

Autonomous Raspberry Pi [closed]

I'm looking for a way to have an autonomous Raspberry Pi. The idea is to have a Raspberry Pi outdoor, with a camera, + possible weather sensor and Wi-Fi mesh (I might looking for too much...) Any ...
Kevin's user avatar
  • 237
0 votes
0 answers
1k views

Disable Power Over HDMI

I built a Retropie using a PI Model 3B that is powered via the GPIO pins. Specifically with this case which adapts micro usb to the GPIO power. Everything works fine except when I turn the system off. ...
Jon Doe's user avatar
  • 101