Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

Questions tagged [power-management]

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

197 questions
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Is it possible to create a keyboard shortcut that acts as an on/off switch?

I just got a RaspberryPi and I'm completely new to linux and all the intricate details of programming. My issue with the RaspberryPi is the difficulty with turning it on and off. After doing some research, it seems that there are boards out there…
Kinser
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Raspi with readonly fs, does power loss still do damage?

I plan to use a read-only filesystem to lose power without corrupting data. I know some routers are designed this way. Are there any problems besides the filesystem I should be aware of?
Bryan Shadow
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3
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How can enable Deep sleep mode in Rasberry PI

If mains fails and my device is working in battery mode I would like to disable Ethernet, USB, HDMI, turn off the LCD backlight etc. Is it possible to disable these modules? My device battery is discharging very quickly, and I am looking for anyway…
naveen
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Do I need to explicitly turn-off unused modules like wi-fi or hdmi to conserve power?

I just got my first PI4 to be used as a NAS with OpenMediaValut and USB3 HDD. It is connected to my router directly via ethernet. I'd like to make sure it is not consuming more power than needed for the task. Do I need to explicitly switch-off…
Ivan Koshelev
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Power RPi from a Battery: On/off via UI or Sleep?

I will be using the Raspbian Lite OS. I want my Users to be able to switch the device on/off. I am using a battery source for the main application. I was thinking of providing kiosk browser UI (which I found some sample code for) to allow the user…
user11286
2
votes
1 answer

Powering Off RPI when on UPS

Is there any way by which I can power off RPI2 when system is on UPS after sometime using software only. My UPS communicates with the system using USB. But it has windows support. I want to have similar mechanism with RPI2. I'm using this UPS model.…
Amol
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1
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Can the 5V and 3.3V power pins be used to power multiple devices?

I am building a device that will be controlled by several digital encoders, all which are hooked up to the device's Raspberry Pi 3 model B. I know this may be a trivial question but bear with me as I have never built a device using a RPi before, but…
wlegra2
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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 happens that the Pi hangs. I can't SSH to it and no…
shrx
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Power consumption of Raspberry 400 when in deep sleep via Fn-F10

have anyone measured power consumption of the newly-introduced "off" state via long-press of the Fn-F10 combination on the Raspberry 400 model? https://www.raspberrypi.org/blog/designing-raspberry-pi-400/ "We also have a feature that is completely…
lzap
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Wake display, via trigger and then have it sleep after n minutes?

We are looking at mixing a PIR (motion sensor) with a Raspberry Pi, such that the screen will turn on when motion in sensed and then sleep after a certain period of no sensed motion. The screen will be connected via HDMI and the OS will be Raspbian…
Andre M
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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?
avk
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How can I boot a Pi from a battery pack when the light level exceeds a preset level?

I have a Naturewatch camera using a PiZero powered by a large battery pack. The pack will last several days as is, but I would like the camera to be running only during daylight, for obvious reasons, to extend the battery’s life. Does there exist a…
Nicholas Walton
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Questions on dtoverlay gpio-poweroff

I'm working on a soft-latching power control for my raspberry PI project. I want to use the 'gpio-poweroff' overlay to cut all power after the system gracefully shuts down. I have it working, but I'm seeing some odd behavior. To test I started with…
mkeveney
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