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1answer
368 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 ...
-2
votes
2answers
49 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?
0
votes
1answer
366 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 ...
1
vote
2answers
673 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 ...
0
votes
2answers
3k 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 ...
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, ...
2
votes
1answer
4k views

Wire 5v to raspberry pi b+ without microUsb

On the original model b it was possible to wire power to the tp1 and tp2 (which ran through the fuse and was protected?) I am upgrading my 3d printer to run with a b+ but the b+ does not have the same ...
7
votes
3answers
4k views

Pi / Pi 2 using modern 'smart' USB Power Adapters to supply power to the Raspberry?

Once upon a time there was only one way to charge a usb device and that was done at 5V and 500mA max, or so I've been told. 'Modern' USB Power Adapters like the Apple 1Amp, 2Amp and 2.4Amp and many ...
27
votes
6answers
83k views

Will any external battery power a Raspberry Pi?

I am working on a project that needs the Raspberry Pi to work without a mains connection. I have considered buying a 50000mAh USB power bank. Would this power a Raspberry Pi, and if so, would it ...
7
votes
3answers
2k views

Car computer how to connect to car battery and also not drain battery when the car is switched off

I am doing research on creating a car computer with raspberry pi (so I have all the basics down before I start this project) and I am looking on a way to switch the whole device automatically whenever ...