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Questions tagged [alternative-power]

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

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1answer
79 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 ...
0
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0answers
56 views

On the Raspberry Pi 3B+ can the POE pins be used for 12v-24v DC power input

I have an application where I need to power a Raspberry Pi 3B+ in a compact case form a 12v power supply. I also have a 3A 5v power supply available in the case. The GPIO header is covered up with a ...
0
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1answer
39 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 ...
0
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2answers
102 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 (...
1
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1answer
247 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 (...
0
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1answer
499 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 ...
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2answers
193 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 (...
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3answers
121 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 ...
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4answers
107 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 ...
0
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5answers
89 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 ...
0
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1answer
81 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 ...
0
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2answers
391 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 ...
0
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1answer
141 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 ...
1
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1answer
287 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 ...
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0answers
450 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. ...
1
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2answers
126 views

Possible to Power RPi 3 & Touchscreen with Old Intercom Wires?

So this question could be a dumb one, as I have little to no experience with electricity. Anyways, here it is: My current project is using the RPi Official Touchscreen (7 inches), along with a RPi3 ...
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1answer
1k views

Any way to manually reset polyfuse?

I a using as raspberry pi 3 model B and I think I have tripped the poly fuse as I connected it to a nine volt battery pack and a 5 volt extension. I waited for the poly fuse to reset itself for like ...
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1answer
84 views

Torrentbox Hard Drive keeps unmounting when copying files. How to avoid it?

My external hard drive is connected to a powered usb hub (5v 3000mA) then connected to rpi3. Whenever I copy any file that would take more than 30 sec, it would unmount and I have to mount the next ...
2
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0answers
268 views

Is the PoEPi available or is it still in development? [closed]

I was looking around for a way to power the Pi Zero W over PoE in a compact package, and I came across this board. It does exactly what I want, but I can't find it being crowdfunded, talked about, ...
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0answers
501 views

Current Required to Power Pi Via 5V GPIO

So for the project I am working on I am attempting to power a Raspiberry Pi 3 through the 5V Pin along the header. This is the setup I have: The large orange box on the right is a 12V power supply, ...
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2answers
47 views

Help with resistors

I have a raspberry pi 3 that runs on 5.1v but I have a battery that is 7.4v, what transistor do I need so I don't fry the rpb3?
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2answers
305 views

Connecting 5V PSU to GPIO

Disclaimer: My knowledge is fairly limited when it comes to electronics. I want to connect an external PSU to the 2/4 GPIO pins. Link to PSU I didn't know a barrel to microUSB adaptor exist and I ...
5
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2answers
3k views

Is it possible to power a Raspberry Pi (Zero/Compute Module) over an HDMI/MHL socket of a TV?

Today I stumbled upon the WDLabs Media Stick for the Raspberry Pi Compute Module at the ModMyPi Online Store and was immediately reminded of the Intel Compute Sticks or the ASUS Stick PCs. But the ...
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1answer
441 views

Raspberry Pi 3 and UPS Pico HV3.0A, cold boot

I am already building a Pi 3 mobile project, with a 5 inch screen, Bluetooth keyboard and so on. What Ii am interested in is using the new version of UPS Pico HV3.0A, that supports up to 3A of current,...
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0answers
141 views

Best Way To Power Raspberry Pi Zero and External 4.5 - 36v Circuit

I am creating a drone where I have a Raspberry Pi Zero, and a Motozero. I need to supply the Motozero with power from 4.5 to 36 volts as well as the Raspberry Pi Zero. What is the best way to do ...
6
votes
1answer
551 views

Lithium power supply not working

Re: Kuman Lithium Battery Pack Power Expansion Board with Switch + Micro USB Cable for Raspberry Pi 3 Model B, Pi 2 Model B & Pi 1 Model B+ A+ A KY68 I just bought this for use with Pi3 model B ...
0
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1answer
347 views

Will low power indicator come up on any os(retropie) if power is low?

I'm building a portable gaming system and I have a power bank coming in for it I want to know if it will indicate a warning if my "battery" is not supplying enough power so I know when to shut it ...
5
votes
1answer
539 views

Powering WS2812B LED strip from Pi brownouts

I have a Raspberry Pi 3 Model B currently controlling and powering a strip of WS2812B LED's. A separate 5V 15A power supply powers the Pi through pins 2 and 6, while the LED's are powered off of pins ...
0
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0answers
34 views

Raspberry PI UPS that doesn't shutdown the pi [duplicate]

So, I want to make an UPS for my raspberry PI, but the UPS needs to be able to supply power to the pi for several hours. So I mean this: The pi originally gets power from the wall socket, but in ...
0
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2answers
1k views

Is it possible to run Pi Zero from Phone Battery

I would like to create a retro game project and I have to be able to have a portable Pi without being plugged into a electric socket. I have been looking into my phone battery and saw that it's 4.2v ...
0
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1answer
697 views

How can I display the charge from a battery on my Pi? [closed]

I have a robot that uses a Raspberry Pi 3 Model B and a 12 volt sealed lead acid battery. The battery powers other things (motors, etc), and the Pi receives a regulated current. How can I display the ...
1
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1answer
3k views

Reusing a phone battery to power a Pi

I know this question might be too broad or too generally worded, but I'll ask it anyway, because I can't find it anywhere else. Is there any simple way how to convert any old phone (fully functional) ...
1
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2answers
109 views

Can Raspberry Pi draw power FROM an external HD?

I just hooked up an external Kingston SATA drive with a SATA-USB adaptor to my Pi 2B. I powered the disk from a separate USB hub, the Pi had its power from a common micro-USB PSU. Then something a ...
1
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2answers
647 views

Powering Raspberry Pi 3 alternatives

I am starting my first raspberry pie project and I am essentially going for a entertainment center. I ordered a 2.5A power adapter to provide power to the unit, but was wondering if it was possible to ...
1
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0answers
519 views

Controlling power to a raspberry pi with relay or MOSFETs

So I have a 12V battery connected to a (5v/6v optional) UBEC powering the pi through the GPIO pins. Using a separate circuit, probably with a micro-controller, I want to be able to toggle power to ...
0
votes
1answer
108 views

Power Raspberry Pi and charge Adafruit FONA from same source

I have 12v leisure batteries hooked up to solar panels, I want to be able to power my pi (5V 0.7A max) and charge the Lipo battery for the Adafruit FONA (5V 2A max) for a combined 2.7A max (i think) ...
1
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2answers
458 views

Power multiple Pis through 5V GPIO and 5V wall wart

I'm considering making a Pi cluster (Let's say 8 Pi 3s), and instead of buying an 8-port USB charger and 8 USB cables of exactly the right length, could I use a powerful enough (8A?) 5V wall wart and ...
0
votes
1answer
124 views

Is powering the Pi 3B using GPIO allowed?

I am building a GPIO module that actually powers the Raspberry Pi. I am working with Pi 3B boards and want to feed power directly to GPIO pins 2/4 (VCC +5V) and pin 6 (GND,) completely bypassing the ...
3
votes
1answer
599 views

Raspberry Pi 3 Reboot/Power issue

I'm having an issue with my Pi 3 regarding power/heat issues. I have a setup where a UBEC has been powering a Raspberry Pi 3, 5in HDMI touchscreen, and small fan for a project. It was running fine ...
2
votes
2answers
949 views

Power up from USB Cable or GPIO?

I have made a battery pack to power up my Raspberry Pi 3 for a project. The pack uses 2 Samsung ICR 18650 Li-Ion batteries (connected in series) and a 5V 3A UBEC and gives 5.05V output. Now I'm a ...
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2answers
2k views

Powering a Raspberry Pi from a vehicle battery 24/7

I am working on a project where my Pi is always connected to a vehicle to provide its GPS information. Seeing such a device must be always turned on, I am attempting to tap into a battery line that ...
3
votes
2answers
2k views

Power Raspberry Pi 2 From vehicle battery

I have seen many tutorials and blogs of people setting up their PI 2 in their vehicles for media systems etc. I would actually like to attempt the following however I am unsure how to power the pi. I ...
1
vote
2answers
2k views

Can I power a RPi3 from its USB ports?

https://www.raspberrypi.org/help/faqs/#powerHub indicates that certain USB hubs can "backpower" the the Raspberry Pi by its USB ports. Apart from the fact that it seems to bypass the overvoltage ...
4
votes
2answers
2k views

Is there a max current that can be supplied when powering the Pi from the pins?

I want to power my Pi Zero from the header pins, pin 2 and pin 6 specifically. I know that my Pi Zero can consume up to 120mA, and my power supply can provide up to 500mA. I've heard that the 3.3v ...
0
votes
1answer
373 views

For how much time does a 600 VA UPS run my RPI 2?

I am planning to buy a 600VA UPS as power backup for my rpi 2. Can someone please help me to find out how much time it can run my rpi? I am running rpi with a 5.3V 2A usb charge and connected a 500 ...
6
votes
4answers
208 views

How can I power the pi safely?

I'm a student in 7th grade building a project that has to include a raspberry pi of a contest coming up in april. Long story short I have a solar panel with a 6v usb output and I would like to power ...
7
votes
2answers
2k views

Can I use a DC-DC step up module to power a Raspberry Pi from 2AA batteries?

I understand that I can use 4AA batteries and a step down module to get 5V and power the Pi, however briefly. However, now I'm getting real outrageous and want to trying powering the Pi from just 2AA, ...
5
votes
3answers
829 views

Possible to power a Raspberry Pi Zero or B+ plugged in via an Ethernet port?

I want to build a device using a Raspberry Pi where you plug in the Ethernet port into any Ethernet port device and then from the Raspberry Pi it routes it back into the same device. Say for example: ...
0
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0answers
77 views

Raspberry Pi 2 rewire power input [duplicate]

I want to use my raspberry pi 2 as an media center and use movies from my usb HDD Now the problem is that it runs short on power for that usb HDD (my usb hdd uses 2 usb ports btw) Now I found an old ...
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1answer
154 views

Why it should not be possible to back feed a modern Raspberry Pi? [duplicate]

I read some posts, like this one, saying it this not possible to back feed a RPI from the USB sockets. But I think this is possible. I have two evidences for that: This post from Eben Upton (...