Relates to powering USB devices from the Raspberry Pi
1
vote
1answer
71 views
Need advice on completing my raspberry vehicle setup
Lets start with my goal:
I want to control my raspberry pi tracked vehicle via wifi using nodejs. See the attached picture, it is awesome already.
I've got the following working:
rolling tracked ...
0
votes
0answers
31 views
Problem with Pi + Logitech C920 - after reboot, cam gets error - How to shutdown USB connection and restart it?
So I have a basic Pi + Logitec C920 cam setup where I want my pi running at all times taking pictures from the camera. I have finally set up to reboot the pi when it freezes. However, I have a problem ...
1
vote
2answers
152 views
4 USB camera framerate and resolution
I understand that the raspberry pi can record from USB webcams. My question is, if I use a powered hub to get extra USB ports, what kind of frame rate will the raspberry pi be able to record video at ...
0
votes
0answers
59 views
RPi shutting down after powered from 5V pin
My RPi is working fine and automatically connecting to wifi when powered from USB but when I try to power it from a regulated 5V supply on the extension headers I can see that it goes on but then ...
3
votes
1answer
93 views
Raspberry Pi Franken-charger: A Mini-B-to-Micro-B Conversion
So I go to the thrift shop around the corner, and I'm met with these two boxes in the electronics' section:
I'm sifting through these one by one, tangle by tangle, searching for a power adapter ...
2
votes
3answers
245 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
1answer
269 views
Problem with an USB extension cable powering a HDD
I have a 2.5" HDD with two wires, one for USB data and another for USB power. It works perfectly if I connect the USB power cable to the power.
Now, I need to move the raspberry pi and the HDD, so I ...
0
votes
0answers
385 views
Can't connect to 3G using Sakis3G software
I am trying to connect to mobile network using USB dongle ZTE MF190 on my Raspberry Pi machine. I already successfuly established the UMTS connection directly on Pi's USB host, but later I added ...
0
votes
2answers
146 views
Mini usb power cable and ethernet connection
I bought a brand new Raspberry Pi. It came with a 5v ~ 1A power adaptor and a mini-usb cable.
I plugged it in and plugged in my cat 5 into the ethernet port. The raspberry powered up but the Ethernet ...
6
votes
4answers
395 views
Long (30 to 50 foot) USB power only cable
I want to place my Raspberry Pi in a remote location to act as a surveillance camera and need to run a power-ONLY USB cable over a long distance of 30 to 50 feet.
Can I safely extend a normal USB 2.0 ...
2
votes
2answers
2k 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 ...
0
votes
2answers
292 views
Power USB Hub from “Mains to USB” adapter
I'm thinking of building myself a small media center using a RasPi, but 2 USB ports doesn't seem enough to me. So I will need a USB Hub. I still don't know exactly what devices will be plugged on it ...
2
votes
2answers
585 views
Can you transfer data through the microUSB?
The Raspberry Pi is powered through the microUSB port. If the Raspberry Pi is plugged into a computer instead of a power transformer, could you send data through that connection? I know iPhones and ...
2
votes
1answer
192 views
iPhone charges when using tethered internet (usb)
I'm using my iPhone to provide tethered internet to my Pi.
However I see my iPhone is actually charging while connected. Would anyone considered this bad for the Pi? I never figured there would be ...
4
votes
3answers
2k views
Will a 2.1 Amp MicroUSB charger be OK for the RPi?
I know the RPi needs a 700 mA MicroUSB charger, but can it handle a greater amp, namely 2.1amp?
4
votes
5answers
9k views
Powering the raspberry Pi from USB + microUSB, is it safe?
I want to power a Pi model B from a powered USB hub.
I got surprised that the Pi powers on with only the USB attached. A little search in the forums confirmed me that it is a working solution.
I ...
1
vote
2answers
183 views
Is the USB-Port generally faulty with the RP?
There is this saying that the USB-Port of the Pi(or the pi itself somewhere in it) had issues with synchronous data transmission, like sending and receiving data via bluetooth dongle at the same time.
...
0
votes
1answer
596 views
Raspberry Pi USB power from 5V S-ATA
I have a 3.5" HDD enclosure with external power supply. Inside I have a 2.5" HDD and there is space in there for the RPi. The problem is I don't want to have two power supplies so I was thinking to ...
1
vote
1answer
604 views
Can the keyboard draw too much power and cause damage?
I've been using a small, lightweight keyboard, fearful that one using a higher voltage would damage my Pi. Could I have invested in a better keyboard or did I do the right thing to prevent damage?
1
vote
1answer
2k views
Serial versus USB connection for RFID reader
I'm a university student attempting to make a wall-mounted RFID reader using a Raspberry Pi device and a Parallax RFID reader. I'm still in the process of planning and ordering the components, and ...
6
votes
2answers
7k views
External power for USB HDD
I want to plug my 2.5 USB external hard drive to the Raspberry Pi, however, there is not enough power on the USB ports for it to work. I've had some problems with a cheap USB AC-powered hub from eBay ...
2
votes
2answers
734 views
How can I cut power coming out of the Pi's USB ports?
I have a simple device connected to the Raspberry Pi, a small USB fan. The problem is that the fan does not have a on/off switch so I must unplug the fan every time I want it to stop.
My question is: ...
3
votes
1answer
238 views
Can I power two Raspberry Pis from one Powered Hub?
I have this hub: Mod My Pi 4 Port USB Hub, which is recommended for use with the Raspberry.
I have two Raspberries but one Hub. My Question is:
Can I power both Raspberries at the same time, without ...
6
votes
1answer
6k 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)?
2
votes
0answers
250 views
Pi - Detecting hdmi out or power interrupted
Does anyone know of a way to script this?
The idea being that using raspbmc / hdmi to TV / Tv USB to Pi mini USB (with a battery for buffer)...
You could have your Pi running off the tv's usb. When ...
2
votes
1answer
524 views
3G Dongle / USB Device Appears and Disappears
I have a 3G dongle plugged into my Pi. Running lsusb only occasionally shows the device occasionally in the list. When I tail /var/log/messages I see the following:
Feb 7 17:09:07 raspberrypi ...
3
votes
4answers
3k views
Powered hubs, backfeeding and safety
I've got my RPi set up as a media centre, running Raspbmc, using a powered hub to run a bunch of peripherals including terabyte external HD and a hacked-together IR remote.
All very nice, but it's ...
4
votes
1answer
368 views
Power issues with 2 external hard drives connected
I'm using the B model pi which has two usb ports. I originally had 1 1TB external usb hard drive connected to it and then tried to add another 1TB drive and it seemed like that one would not power ...
1
vote
4answers
3k views
High Power USB Power Hub
I currently have four raspberry pi's connected via ethernet to each other. They are currently powered by four 1A power adapters which works fine. But I was wondering if there are any devices out there ...
8
votes
2answers
2k views
Powering Raspberry Pi and other USB devices through a single USB Hub
I bought a powered 7-port USB Hub, which has 7 downstream ports, 1 up stream port and one power port.
My question is can I connect both Raspberry Pi and the USB devices that I want to use with ...
3
votes
2answers
2k views
one power supply for raspberry pi and external HDD
I have my Pi and a USB powered external hard disk. I am looking for a way just to have one plug for the both of them. At the moment my Kindle Charger doesn't have adequate power to power them both.
...
2
votes
2answers
4k views
DIY External Powered USB hub not working
I have put together a DIY External Powered USB Hub by following the instructions. (Instructables, htc-linux)
USB hub with 4 ports
5v 2A AC/DC power supply (It varies when tested with multimeter, ...
2
votes
4answers
3k views
External Hard Drive w/ Powered Hub will not mount
I recently purchased this USB hub for use with my raspberry pi. However I've been having issues with it and my external hard drive.
When I plug the drive in everything appears to be okay. The LED on ...
2
votes
2answers
1k views
RPi rev 2 and USB powered harddrive
I am getting my RasperryPi Rev2 soon, and I plan to use it as a media centre. I have a WesternDigital Elements 1TB USB3 2.5" USB powered external harddrive. I know that a normal USB port outputs ...
4
votes
2answers
3k views
Problems with External Hard Drive - kernel: journal commit I/O error
I'm having issues keeping a 3TB USB 2.0 External Hard drive (self powered) mounted on my pi.
I'm using a 1.0 A wall charger to power the pi. I'm connecting the hard drive to a powered Belkin USB hub ...
4
votes
7answers
4k views
What is the lowest power, most compatible, most compact usb wi-fi adaptor that works out of the box with the Raspberry Pi?
It seems that several people (myself included) are having great difficulty getting different wi-fi adapters to work reliably with the Pi. Some adaptors seem to require excessive amounts of power and a ...
8
votes
1answer
630 views
Alternative to polyfuse mod
I have one usb device that will not work because of the limited usb current. I don't want to add a powered usb hub (saving cost and space) and I don't want to solder on my pi (polyfuse mode). Can I ...
2
votes
1answer
1k views
Raspberry Pi USB hub failure
I'm planning to create a media center with Raspberry Pi. For that I would like to attach a 500 GB USB hard disk drive that I already own.
Right now, I'm trying XBian, but I already tried Raspbmc ...
5
votes
2answers
3k views
Raspberry Pi Model B Revision 2, Max USB Output Power
With the rev. 2 of the Rasberry, the USB protective fuses are removed.
Does this change increase the max current limitation of 100mA per USB?
If not, what does imply the elimination of the fuses? ...
7
votes
1answer
755 views
If I power my Pi from GPIO, can I detect that it's not being powered by USB?
I'd like to create a backup power solution for my Raspberry Pi, and I'd like a notification to come up that the Raspberry Pi is running on this backup power. This notification has to tell me that ...
10
votes
2answers
997 views
Can I provide separate power to USB device?
I have a USB device that requires more power than the RPi can provide. I don't want to use a powered hub. Couldn't I build a simple adapter that passes only the data lines and breaks out Vcc and ...
8
votes
1answer
1k views
How do I get a WiFi dongle to work with the device?
I own a Model B Raspberry Pi and am trying to get my Edimax WiFi dongle to work via the USB ports. I am using a 750mA power supply and usually have a keyboard touchpad combo plugged in too, which has ...
7
votes
3answers
2k views
Will router's USB port supply enough power for the Raspberry Pi?
I'd like to use the Raspberry Pi as a small server. My Linksys WRT610N router has a rear USB port and I'd like to use it to supply power to the Raspi. That way, the Raspi doesn't need to have a ...
7
votes
1answer
357 views
Does a two-port charger at 1.5A provide 750mA from each port?
So, I'm looking to buy this energizer charger: http://www.amazon.com/Energizer-Dual-Universal-Charger-Pc2-wa/dp/B004YZI1VW/ref=cm_cr_pr_product_top
The 1 port product has 1A the two port product has ...
8
votes
3answers
4k views
Powering from my PC's USB 3.0 port
The spec for my PC's motherboard doesn't mention any upper or lower limit for its built-in USB 3.0 ports.
What is the minimum current that any (standards compliant) built-in USB 3.0 port should be ...
6
votes
2answers
5k views
Fixing issues with Powered USB Hub
With my PI I'm trying to use the F4U018 Belkin 7 port hub (yes - the one on the problem list). Its one of three I have around, all of which happen to be on the problem list - I don't want to shell out ...
8
votes
2answers
2k views
Why are there delays and input issues when using my wireless keyboard?
I booted up my Raspberry Pi for the first time and I plugged in my USB dongle for my wireless keyboard and mouse. It booted up fine but when I type keys either don't appear on the screen or they ...
33
votes
2answers
30k views
How much power can be provided through USB?
I know that my USB powered Hard Drive doesn't work, but what is the minimum power requirement that the Raspberry Pi can fulfil for devices that connect via USB?