Questions relating to the Raspberry Pi USB ports and specific Raspberry Pi USB devices and device interaction.

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0
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0answers
8 views

No sound from mic

I have run the command arecord -D plughw:io2 --duration=10 -f cd -vv ~/rectest.wav To record a sound from my device io2. This then returns: Recording WAVE '/home/pi/rectest.wav' : Signed 16 bit ...
0
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0answers
19 views

Moving files on OpenELEC

I have a model B Raspberry Pi running OpenELEC v4.2.1. I have two attached usb sticks (formats: exFAT and FAT) and an attached hard drive (format: NTFS). When I go to the file manager in OpenELEC I ...
1
vote
1answer
36 views

Why does plugging a usb 2.0 memory stick into a 2011 raspberry pi running openelec cause it to crash?

I have a 2011 raspberry pi set up and running with openelec (v13.2 "GOTHAM") running on it. When I power up the raspberry pi with a USB 2.0 memory stick connected to it, it causes the screen to flash ...
0
votes
1answer
28 views

RPi B v2.0 not accepting keyboards

I'm using a RPi B v2.0 ("Made in the UK" with the P5 connector). I've installed Raspbian to an 8GB SDHC class 4 card and can boot (the display shows nice boot log). When measuring between TP1 and TP2, ...
0
votes
2answers
36 views

Running raspbian from usb stick, does it matter what kind of usb stick I use?

I've read that running raspbian from an usb-stick can speed up your raspberry pi (as explained here). How to do this is clear to me, but I was wondering if it matters what kind of usb stick I'll use. ...
2
votes
4answers
135 views

Can the pi power this 2.5" drive without a usb hub?

I want to use my PI model B as a NAS, but I'd like to avoid using a usb-hub. I have a 2.5" western digital 1tb usb drive (this one), and a 2A power supply for the pi that I'm planning on using with ...
2
votes
1answer
42 views

How to configure a Pi model A for OTG usage (as a USB slave)

Seeing as how the model A supports OTG mode via the hardware (both the CPU and USB controller were designed for it) The USB host port inside the Pi is an On-The-Go (OTG) host as the application ...
1
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0answers
20 views

Ebola treatment unit wifi communication system using smart phones and Raspberry Pi without internet [closed]

I've volunteered to go to West Africa to work in an Ebola Treatment Unit this coming January. From what I've been hearing, the treatments units are going smaller and in more rural areas, thus there is ...
3
votes
5answers
116 views

Can I connect two Linux systems via USB?

I would like to hook up my new Raspberry Pi A+ to an older B model without having to connect the A+ to WiFi. Can I connect them somehow via USB? Can I do it with a hub in between?
0
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2answers
28 views

Read load of battery via USB

I don't know if it is the right forum to ask the question but I just post it here. I have a power bank connected to my rpi b+ and I want to ask if it is in general possible to read the current load ...
2
votes
2answers
107 views

What's the best way to interface RPi with an Android app?

For my university senior project, I've been tasked with creating an Android app that will function as a HUD for the driver of a Formula Hybrid vehicle. The Raspberry Pi will gather all sorts of data ...
0
votes
1answer
38 views

Troubleshoot USB RFID desktop reader ACS ACR1281U

I have a USB desktop reader "ACR1281U" which is a basic keyboard emulation reader. When you "swipe" the card it'll output it's ID and run a ENTER-command. When I plug this into my Raspberry Pi it'll ...
3
votes
2answers
142 views

Will reformatting external hard drive to Ext4 from NTFS speed up data transfers?

I have two (externally-powered) external USB hard drives plugged into my Raspberry Pi. I use this to download torrents (using Transmission) and to share these with the other computers on the network ...
0
votes
1answer
36 views

Getting 3 new entries in /dev/ttyUSBx for each 3G dongle connected

I am trying to connect 4 3G dongles to Raspberry Pi B+, I have some troubles making them all reply to AT commands, and I see that each time I connect one dongle, 3 new /dev/ttyUSBx ports are created ...
1
vote
1answer
168 views

Raspberry Pi with USB DAC and ALSA audio not working

I finally got a USB DAC (HiFimeDIY Sabre DAC) for my Raspberry Pi (running on Raspbian Wheezy) today, but of course, just plugging it in doesn't do the trick. I've been messing around for quite some ...
1
vote
4answers
70 views

Powering a stack of Raspberry Pis

I'm looking at putting together a small stack (maybe 4 - 6) of Pis to host my currently externally hosted services, plus a router and a media server. Software setup is not a problem and basic hardware ...
1
vote
0answers
106 views

Streaming Audio and Video from a remote Raspberry Pi to my computer

Good afternoon, I've been working a couple of days on this issue. I need to set a stream up that streams audio and video (doesn't matter if I need to open seperate connections for it, as long as it ...
0
votes
1answer
51 views

How can I detect if specific USB port is being used, and then command an action?

I'm very new to Raspberry Pi/Linux/Python world and I'm trying to identify one of the ports on my RPi, so if someone for example, connects a USB Flash drive (or anything) to that specific port an ...
0
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0answers
28 views

How can I schedule a task to power down USB HDD and USB Wifi?

I have a RaspberryPi B+ which I connected to an USB HDD and a USB Wifi adapter. Both works great. Also, I have running a webserver and a seafile server. Now, I want to set up a task (scheduled at ...
0
votes
1answer
368 views

static sound when recording with USB sound card mic/input on a B+

I have a Raspberry Pi B+ model and I am using a USB sound card to record audio. The problem is that I am only getting static and loud humming when recording, with nothing else actually recorded. I am ...
0
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0answers
89 views

raspberry pi web server using USB HDD

I have to create an Apache tomcat web-server on a Raspberry Pi. However, I want to install Apache tomcat, java, mysql on an external hard disk and run them from there. How can do this? Also, which ...
0
votes
1answer
63 views

Connecting a 12V USB device to Pi [closed]

I'm planning to use a long range USB RFID reader (12V) like this with Pi. As Pi USB can supply only 5V, how can I connect it to Pi USB, if it is not external powered..??
1
vote
1answer
364 views

Barcode Scanners compatible with Raspberry Pi

I would like to buy a barcode scanner to use with Pi, so which one will be compatible with Pi..?? Something around $50 would be great, like the Barcode Scanners we use at POS (Point of Sale), ...
0
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0answers
33 views

How can I use an encrypted folder as a Seafile repository?

I have an external HDD connected with USB. I want to encrypt the HDD with encfs (see: http://www.howtoforge.com/encrypt-your-data-with-encfs-debian-squeeze-ubuntu-11.10) Furthermore I want to use my ...
0
votes
1answer
171 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?
1
vote
1answer
47 views

Can I connect Garmin Oregon 600 to my Pi B+

Seems simple enough to try but I can't find my GPS unit at the moment. I'm also not finding anything online that suggests this is possible. I want to connect my Oregon 600 to my Pi B+ and process the ...
0
votes
0answers
191 views

Raspberry Pi Model B as FM radio receiver

I've got an idea- FM radio tuner on Pi, and it could be done with usb fm-receiver and any radio app, but Pi has a bad bug- with anything connected to usb, from usb-flash to usb powered hub, sometimes ...
0
votes
3answers
71 views

Can I measure provided current/power by measuring voltage over resistor?

Background I'm trying to get my scanner (CanoScan LIDE 100, USB 2.0, back says power input 5V/500mA) working with a Raspberry Pi. Whenever I issue a scan command it usually gives me a device I/O ...
1
vote
2answers
98 views

USB Modem rebooting problem

I have a python program that sends text message using a USB modem, it works fine.. But sometimes when I reboot my device the program cant find the device, so I need unplug than plug back again to ...
0
votes
0answers
123 views

Raspberry Pi B+ direct interface with usb camera

I would like to know if it is possible to connect usb cameras directly with RPi B+...?? While working with RPi Model B, I had to use a powered USB hub to interface with my i-ball camera, but with 4 ...
2
votes
1answer
52 views

Can't find the menu for adding an usb game controller

A couple weeks back I was setting up my pi and going through a ton of info about setting it up and I remember coming across a menu to set up USB game controllers (the USB human interface device). ...
0
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0answers
30 views

Alternative to HDMI4PI?

I'm looking for an LCD kit with touchscreen support that connects over VGA for the LCD and USB for the touchscreen, with a screen that is 4.3"-5" Essentially, a less expensive alternative to this ...
0
votes
0answers
90 views

Can't get Wi-Fi dongle to work

I bought a generic Wi-Fi dongle that, according to the comments of the people who bought it, worked out of the box on Raspbian. Well, turns out it didn't. I'm struggling to make it work. I'm using ...
0
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0answers
69 views

Kernel module usbnet for Raspbian?

I'm looking for a faster way to exchange data between two Raspberry Pi (raspi). The ideal scenario would be, having one raspi A connected to an external hard-drive, and mount this hard-drive via ...
1
vote
1answer
175 views

How can a USB Bluetooth Dongle be used as login TTY

I would like to be able to use a Bluetooth Dongle - not the HC06 module, but a simple USB dongle (the pretty generic kind, or even poundshop type) as a serial login console/tty. I have already tried ...
0
votes
0answers
40 views

How to blink LED when a USB drive is attached?

I've managed to turn on a LED on the GPIO pin when i connect a USB drive. I've managed to turn it off as well when the USB drive is disconnected. Now i'm trying to get it to blink but having ...
0
votes
0answers
60 views

Pi not recognizing USB ports with an adequate PSU

So I got the Raspberry Pi B+ about 3 weeks ago and it hasn't been functioning 100% correctly... I have a PiHub to power my ehdd (1tb WD Elements), Wifi Adapter Realtek 8188CU, and (usually) the ...
0
votes
0answers
60 views

Sending Data from microcontroller to USB port of rpi

I am trying to send data from my PIC microcontroller to USB port of RPi. Could you please suggest me a way that I can read it and save the data in my memory card of Raspberry Pi.
2
votes
1answer
155 views

slow network performance samba

I'm suffering from poor network performance on my PI. I use samba to copy files from W7 to an external 3,5inch usb3 drive, NTFS formatted and mounted on the pi using NTFS (not the 3g). I have seen ...
-1
votes
1answer
71 views

So is there any C++ alternative for PiUi?

So actually i have a little project that require the Pi to communicate to a Smartphone (in this case android device) to transact data (sending and receiving command,etc) via any available connection ...
1
vote
2answers
30 views

Unresponsive USB on a Raspi Model A

I've been running a headless Pi Model A (1 USB and no ethernet port) for a little while and it's just stopped working. The wifi dongle shows no life, and the pluggin keyboard has no effect. So I ...
2
votes
1answer
87 views

Write to USB stick on specific USB port

I want to write data to a USB stick plugged into a specific USB port on the PI. I know I can write to a specific USB device by using its UUID, and I know I can find the address for the USB port ...
2
votes
2answers
757 views

USB bandwidth for the RPi model B+

I've haven't been able to find any conclusive data about USB bandwidth for the RPi model B+ As I understand, the bandwidth is shared between all 4 USB-ports (and the Ethernet) because they are using ...
0
votes
1answer
476 views

Extra power to usb port on raspberry pi

I have a model B raspberry pi and an external hard drive that requires more power than the usb port on the raspberry pi can provide. Is there any way to increase the power to the usb port so that I ...
0
votes
0answers
54 views

Wvdial and usb_modeswitch dont work unless Device is hotplugged

I want to connect to the internet using a 3g usb dongle. I have downloaded ppp, usb modeswitch and wvdial. Modeswitch is able to switch my from storage to modem only if I hotplug the device into the ...
1
vote
0answers
169 views

Connecting 3g dongle requires it to be replugged

I am using a 3g dongle and usb_modeswith. It works fine if I plug the device after the Raspbian Os has booted up. The thing is, it does not connect (wvdial doesnt detect modem) , if the modem is ...
0
votes
0answers
247 views

Usb_modeswitch doesnt seem to work in raspberry pi b+

I just purchased a raspberry pi b+. I want to connect to the internet using a 3g dongle (huawei ec152). I followed ...
6
votes
1answer
286 views

Pi as a USB client

I am looking for a way to have the Pi act as a USB client and masquerade as a flash drive. I have seen lots of suggestions, however most of them are old (1+ years) by now and vague/incomplete - I ...
2
votes
1answer
3k views

Maximum current from usb (model b+)

I want to run the ps eye camera for my raspberry pi model b+. It is rated at 5v 500 mA . The question is , is it wise to directly connect it to the provided usb? I am using the pi to make something ...
1
vote
0answers
141 views

Wifi connection stops working

I am using a raspberry pi model b 512 MB with an Edimax EW-7811Un wifi stick and the raspberry pi camera. Power adapter has 2A/5V. OS is latest raspbian, kernel 3.12.25+. For the wifi stick, I have ...