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0
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0answers
8 views

Is a Pi able to put a monitor connected via HDMI to standby?

I've installed xset and tried to send the monitor to standby with xset dpms force standby The screen goes black, but the power LED doesn't start to flash, so the monitor doesn't seem to be in ...
0
votes
1answer
44 views

Raspberry Pi B+ usb port disable

Is it possible to enable/disable arbitrary usb port in ArchLinux via console on Raspberry Pi B+ and at the same time others still work?
0
votes
1answer
90 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 ...
2
votes
2answers
134 views

Does Raspberry PI Model B+ Works Over 24*7 and 365 days continously? [duplicate]

Does Raspberry PI Model B+ Works Over 24*7 and 365 days continuously??
1
vote
1answer
28 views

HDMI -> VGA idle power?

I have a HDMI -> VGA cable for my Pi that works well when I want to use it. The cable stays slightly warm even when not in use, but connected - I would like to know if it's possible to "shut down" ...
3
votes
3answers
158 views

Pi Headless: How to confirm that the Pi is shut down

I am running my Pi headless connected to my wireless router using a ethernet cable. I wanted to shut down the pi remotely even when I am not connected to it using SSH/Putty to shut it down ...
0
votes
1answer
73 views

Using battery pack as a UPS

I need to use raspberry devices as mini servers. I'll need to install ~100 of them in different locations. In those areas, electricity power offs are quite common, so I'm thinking using a cheap usb ...
0
votes
1answer
31 views

powering a RPI with its circuit from one wallsocket

I want to power a RaspberryPi with 54 LEDs (24 white, 24 warm white, 6 RGB - probably all at 20mA or something like that) from one wall socket. I'm planning to use the Pi to control the LEDs via ...
1
vote
1answer
65 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 ...
1
vote
1answer
92 views

how to cut power, especially by sleep mode and disabling peripherals?

I've never used the R. Pi before, but am considering it (model A) for my application. The main attraction is the hardware H.264 encoder, but not the power consumption :( I've read about a few power ...
-1
votes
1answer
63 views

Voltage controlled current amplifier [closed]

How to amplify current 1A, 5V from the 5mA, 5V??. More Particularly, In input side, i have 10mA and 5V and output side required 1A, 5V. Thanks.
2
votes
4answers
87 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 ...
1
vote
1answer
52 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.
1
vote
1answer
58 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 ...
1
vote
1answer
50 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 ...
1
vote
1answer
1k 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 ...
0
votes
0answers
29 views

is there a way to connect pin to shutdown

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 ...
1
vote
1answer
120 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 ...
2
votes
2answers
828 views

Creating halt/wake button?

I have rigged up a wake-from-halt button using pins 5 and 6. These two pins, when connected, will reset power and reboot from halt. I want to use this same button, if I can, to run a command that, ...
1
vote
2answers
649 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 ...
0
votes
0answers
213 views

RPi backup server: turn off when Idle (including USB HDD)

I'm using a USB HDD on a RPi as a backup server. I use samba to connect to it periodically, using some software on a Windows machine which updates the backup once per day. This will be the only ...
2
votes
3answers
1k 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 ...
1
vote
2answers
290 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 ...
3
votes
2answers
1k 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 ...
3
votes
2answers
4k 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 ...
2
votes
1answer
499 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 ...
24
votes
2answers
3k views

Disable LAN9512

The LAN9512 is the hardware device which controls Ethernet and USB ports. This chip consumes almost 200mA, and it will be very useful to disable it to save energy when I don't need USB or Ethernet. ...
1
vote
1answer
4k views

Controlling 240 volt power supply (via Relay) with Raspberry Pi

I love my little raspberry pi, and I am reviving an old home automation project, but instead of transmitting (in the old project, a butchered remote control) a signal at 433MHz (described here) to ...
3
votes
2answers
664 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 ...
1
vote
2answers
8k 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 ...
12
votes
1answer
13k views

How much energy does the raspberry pi consume in a day?

My searching efforts have failed when trying to find this. On average, how much energy does the raspberry pi consume in 24 hours ( minimal usage vs max usage in a day AND usb vs micro usb powered)?
3
votes
3answers
869 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 ...
1
vote
1answer
103 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).
2
votes
1answer
308 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 ...
31
votes
6answers
34k views

Disable screen blanking in X-Windows on Raspbian

We intend to use a RPi at work to drive a status display panel - it will show our project's bug status and a few other statistics of vital importance. I've been trying stop the screen-saver from ...
9
votes
1answer
1k 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 ...