Questions tagged [power-management]

Power Management is a feature of electrical appliances to enter a low-power state when inactive to reduce energy consumption.

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How can I charge a jawbone up using raspberry pi?

I am curious if it is possible to change the 3.5mm jack output on the raspberry pi to use it to charge a jawbone up fitness tracker?
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1answer
846 views

Does the Raspberry Pi camera module have any power saving modes?

My question is related to this one I just asked But this time, I want to know if I can cut the camera power. A FAQ says it draws 250mA, but I don't always need it to be on, so are there any power ...
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Auto-reboot on hang

I'm using my Raspberry Pi for data logging. I have a cron job that collects data every five minutes. The Pi is connected to the internet to another computer that collects this data. It sometimes ...
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2answers
2k views

Start Raspbmc via Logitech Unifying receiver

I have a my Raspbmc connected to my TV and i control it with a Logitech Unifying receiver Keyboard (Logitech k400). On this Keyboard there is a Power-Button that can turn on the connected PC, but it ...
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0answers
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Running RPi on Solar Panel and battery [closed]

I’m quite new in electronic projects and so my basics are quite limited. I've been reading a lot regarding this topic (refer to the title) and I’m currently planning to buy the suitable Solar Panel, ...
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1answer
2k views

B vs. B+ power consumption

I've read several comparisons of the Model B vs. B+, and they mention that one of the benefits of the B+ is it has lower power consumption. With the same processor, and most of the same components, ...
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1answer
491 views

Using Raspberry Pi to make Internet TV box (Power on/off issue)

I need to make a box (STB), which when plugged into TV can display live streaming URLs and can be controlled from remote control. So that a user can have the same experience as of a traditional live ...
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2answers
534 views
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1answer
747 views

Shutting down my Pi safely

I was looking at How to shut down RPi when running headless and really happy to see the awesomeness! So, is it possible to use udev rule to shutdown my Pi when I switch off the router that connects ...
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3answers
5k views

Power issues when connected to tv via usb

I have attached my raspberry pi to a tv and it is powered via the tv's usb port. The problem is that the raspberry pi shuts off a few minutes after it starts up. I am fairly certain that this is a ...
2
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4answers
287 views

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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1answer
147 views

Safest way to shutdown my media center

What is the safest way to close my raspberry pi media center? Can I simply unplug it or are there big risks of getting corrupted data on my SD card.
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1answer
106 views

RPi running too many accessories

I am new to the PI. I am building a pi that will have cameras, sensors and all sorts connected to it. I am wondering even if I use an over powered power supply at 5.3v will it really be enough to ...
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1answer
17k views

Hard drive not detected by the Pi

My raspberry pi is unable to detect my external hard drive, I'm wondering if I might have messed up in my setup. The hub is connected to the pi in two ways: from the hub to the pi's microusb to give ...
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1answer
151 views

Make Pi poweroff secure?

I made a little device that solves a specific task. It gets turned on and off by powering it up and down. Now I had a corrupted file system for the first time. That's why I'm thinking about a strategy ...
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0answers
46 views

is there a way to connect pin to shutdown [duplicate]

There is the little trick of connecting pin 5-6 to load in recovery mode. Is there an equivalent trick I missed to shutdown properly the pi using only a jumper ? There is also the p6 connector, is ...
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2answers
914 views

How to regulate current when peripherals or servos draw a large current? [closed]

I am creating a Raspberry powered WiFi car, called the PiCar :P In the current design the entire system is powered from a single 9V battery which was salvaged from the same RC car which provides the '...
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2answers
5k views

How to make Raspberry Pi suspend to RAM?

My application only uses Pi very occassionally and only a few seconds each time. It would be ideal if Pi supports suspend to RAM feature to save maximum energy. (I am thinking of the next step of ...
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2answers
6k views

Highest current raspberry pi can take from usb

I'm going to be working on a project from a DC power supply, and I need to know the maximum current the Raspberry Pi can handle from the USB port. I know my wall wart adapter that came with my Pi ...
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1answer
2k views

RPi: Handling large quantities of amperes

I have read on the Raspberry Pi Foundation's website and forum that RPi Model B rev 2 should not get more than 1200mA of power on a 5V power source. This post (Safe to power a raspberry pi from a 50W ...
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2answers
45k views

how to disable raspberry pi power management? [duplicate]

I am using my raspberry pi as a headless server. The problem is that after a couple of hours of inactivity it seems to enter a power suspend state where it disappears from the web and refuses ssh ...
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2answers
3k views

Display Powersaving Options (Pi powered on display USB)

Scenario I'm building several wall mounted kiosk that will be placed in remote locations and i'm trying to find a way to build in some longevity / power saving options (IE put them to sleep when the ...
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3answers
1k views

Light Controller System Help - What should I use in my build to individually control multiple lights?

I am currently working on a project with my Raspberry Pi.... I would like to be able to control 5 different lights at the same time, but only one of the lights will be on at a time. In theory, I ...
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1answer
123 views

Remove darkening monitor

My monitor goes dark after a while of inactivity. How do I alter or remove that setting in the Raspberry Pi (debian).
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1answer
437 views

XBMC and unclean shutdown

So, I have my Pi, and based on some posts here, am installing Raspbmc. I have a nice powerstrip that senses current through the "main" outlet (my TV), and will switch off some of the outlet if there ...
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1answer
2k views

System not shutting down properly

I'm running Arch, and when I shut down with the poweroff command (or with shutdown -h now) the 3 LEDs mentioned stay on. In addition, if I've plugged it into a screen, it displays > POWER OFF ...