Questions tagged [power-supply]

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

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4answers
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Will my Pi will be fine if I use those el cheapo chinese power adapters? [duplicate]

Title says all. does these cheap power adapters can harm my Pi anyway? and also, lets say these things stop providing less than what required (less than 5v and less than 0.7A), what will happen to my ...
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3k 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 ...
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1answer
56 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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3answers
885 views

RPI 2 B freezes when Wi-Fi dongle is inserted and doesn't detect it

I have an RPI Model 2B running Raspbian that works (almost) perfectly. I recently bought a TP-LINK WN725N V2.0 that I thought would work if I followed the instructions listed here. However, when I ...
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1answer
5k views

What could be causing “over-current change” all the sudden?

This is a Raspberry Pi 2 using a 5V 2 Amp power supply running with a LaCie 2TB USB external drive connected via the USB port. It gets its power from the USB port for the drive. The above has been ...
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1answer
502 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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2answers
3k views

Safest way to power a hungry Wifi adapter and the Pi from a single 5V source

My Pi is destined for the skies, so it will receive power at roundabout 5.3V via the BEC (battery eliminator circuit) which will be capable of delivering up to 10A (heavy duty BEC it is), so sourcing ...
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2answers
338 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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1answer
2k views

Power Supply for PI Zero [duplicate]

I was thinking about getting a cable for Pi Zero, this one: https://www.adafruit.com/products/1995 But it's 2.4 ampere, won't that overcharge the little Pi Zero and damage it? The specifications say ...
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1answer
407 views

What is it about the redesign of the new Pi 3 B+ power supply that's discussed here? [closed]

Today's announcement at raspberrypi.org: Raspberry Pi 3 Model B+ On Sale Now at $35 describes several improvements. In the linked YouTube video changes to the power supply are discussed between 04:30 ...
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1answer
373 views

Amazon Basics Powered USB Hub not Powering Pi 2

So I bought an Amazon Basics powered USB 3.0 hub for my pi model 2. It works perfectly fine for powering peripherals and data transfer works just fine when my pi is powered off of a separate power ...
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1answer
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Raspberry Pi model b+ has stopped working

I am using a Raspberry Pi model b+ to drive a wheelchair. I am running the motors through relay modules. The signal to the relay module is given from the Pi. Also a GSM module and voice recognition ...
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2answers
104 views

Uninterrupted Power Supply needed for Raspberry Pi

We have designed multiple temperature sensors. its executed as well too. but we need external power supply or Uninterrupted Power supply for Rpi. I have chosen power bank ..but it works with only one ...

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