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

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1answer
15 views

USB modem not switching from mass storage to modem mode

I have ZTE MF669 USB modem. root@raspberrypi:/home/pi# lsusb Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 ...
1
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1answer
15 views

Boots only when USB key connected (fstab related)

I have the following problem on ArchLinux system. My raspberry Pi won't boot unless I have my USB stick connected. I've been doing some tests and I discovered it is fstab related. When I comment the ...
0
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1answer
51 views

Can the new raspberry pi B+ act as a usb sniffer?

I am trying to capture data from a computer going to a USB peripheral. I think the previous raspberry pi (model B) couldn't do this because it could not act a USB slave. But can the new raspberry pi ...
2
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1answer
28 views

Is it possible to toggle individual USB ports?

I have a motion-detecting PiCamera set up running, which is fine and dandy until it gets dark. I could get another Pi with the NoIR camera instead, but a simple solution occurred to me the other day - ...
2
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1answer
24 views

Problems trying to expand USB file system

I am having a little bit of a problem expanding my file system on my Pi. I have just used Win32 to "burn" the Raspbian OS onto my 8Gb USB, which I then copied the boot files to my 2Gb SD and changed ...
2
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1answer
59 views

5 Ghz Wifi on Raspberry Pi

I have already configured by Raspberry Pi to be a wireless access point using the tutorial here: ...
2
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1answer
47 views

Arduino Serial Port via Raspberry Pi SSH [on hold]

I have just bought an Arduino Uno R3 and I would like to view the Serial Monitor using my Raspberry Pi via SSH. I have looked around on forum sites but cannot seem to find the proper software or ...
0
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2answers
44 views

Can I transfer programs to my RPi via a USB stick from Windows?

My raspberry pi isn't connected to the internet for now, and I don't have the patience to bridge connections and everything. Can I somehow download some linux programs from online through my windows ...
1
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1answer
35 views

How to set up data plan for 3g modem for raspberry pi?

I have seen several posts about how to connect a raspberry Pi to a 3g modem to begin transmitting data. Here is an example of a modem I would like to use. My main confusion is in how you get the ...
1
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2answers
51 views

Whenever I connect a usb device, it shuts down and won't boot for 3 minutes

when I boot my pi, everything is fine, but when I connect any usb device(they worked before), it just turns off and only will show the red light and a faint green glow for about 3 mins until it works ...
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0answers
19 views

Keyboard is disabled on boot up

I've just installed a copy of noobs on my Pi. I then installed Raspbian. When I boot up in recovery mode I can use my keyboard and mouse fine. However, when It boots normally I can see that it ...
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0answers
23 views

Raspbian keeps stalling at “[…] Starting OpenBSD Secure Shell server: sshd” during boot

I have the most up-to-date version of Raspbian (2014-06-20) freshly-installed, and went through the configuration screens without a problem. However when I shut it down, plug in a wireless USB adapter ...
1
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3answers
57 views

Raspberry Raid 0 gains

I'm currently using the Pi overclocked to 1GHz on Archlinux running deluge and samba which access a 3TB external USB drive. I plan on buying another identical drive and set it up as a raid 0 ...
0
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2answers
28 views

android device as USB Mass Storage

I've connected my nexus 4 to one of the usb ports on the model b, but it fails to mount the internal storage in /media. How do I get access to the internal storage? Connected as Media device (MTP), ...
0
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0answers
19 views

Raspi not 'accepting' JUH340 USB Hub. (Raspbian OS)

Easily, not too many people have asked a question about this model of usb hub. What I'm attempting to use is a J5 CREATE JUH340 USB 3.0 with the RPi, but it is highly unworkable. With most everything ...
0
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1answer
30 views

How to copy data from USB to RAM

I am trying to quickly download images from a USB digital camera to a hard drive disk attached by USB to my raspberry pi. I want to minimize the time the camera needs to be connected to the pi during ...
0
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0answers
20 views

Say command using mplayer no longer working

I have the say command that does text to speech on my RaspberryPi: #!/bin/bash mplayer "http://translate.google.com/translate_tts?tl=en&q=$1" The script is taken from jacobsalmela.com This ...
-1
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1answer
17 views

Active USB-Hub, letting the + and - open?

I have done some modifications to my Raspberry Pi (Model B). The basic idea is to have an active usb-hub connected to the Raspi, so i can control the power of the hub with a switch(it should all run ...
0
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1answer
33 views

USB disabled when ethernet is plugged in

I'm using a wireless keyboard, it works fine with the raspberry pi, but when I plugin my ethernet my keyboard no longer functions. I can't enter any keys or anything. Any ideas? No usb hub involved.
0
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1answer
47 views

Rpi as usb stick

I'm looking for a way to turn my Pi into a usb stick. The data on the PiStick should actually be a network share (nfs) This way I would have a 1TB Usb stick in the house. Is there any way to ...
0
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1answer
31 views

Trouble finding Wi-Fi Adapter

I've followed this guide, wich explains to first check if my USB gets recognized by my raspberry by lsusb or ifconfig. I've tried both and this is what I get: ifconfig lsusb So my Raspberry does ...
3
votes
1answer
97 views

USB card as my default Audio Device

I purchased a small USB sound card. My Pi recognizes the device: $ lsusb Bus 001 Device 004: ID 0d8c:013c C-Media Electronics, Inc. CM108 Audio Controller If I run alsamixer and set the audio to ...
2
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0answers
41 views

usb soundcard losing power

I bought this USB soundcard. I have this powered USB hub and I plugged the soundcard to the hub(the 2 usb ports in the pi are used by wifi dongle and usb hub). I changed the configs , and rebooted and ...
3
votes
2answers
109 views

Is there a way to automatically activate a script when a USB device connects?

I have a USB device (POV camera) that collects a lot of data a fills up its storage regularly. The goal is to write a script that: Listens for the device to connect via USB Mounts it as a storage ...
0
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1answer
39 views

Does backfeeding the pi allow me to draw more current than normal from the other free usb port?

I've designed a PCB that does some I/O and powers the raspberry pi through one of the Pi's usb ports. I want to use the other free USB port for a wifi dongle. Since I'm backfeeding power will the ...
0
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2answers
93 views

Power external hard drive though USB — safe to use USB charger?

I would like to connect an external hard drive to the Raspberry Pi. This hard drive must be powered through USB and comes with a cable that has two ends (to ensure sufficient power). The cable is ...
0
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0answers
39 views

USB camera originally designed for PC hardware and kernel 2.x

I wonder if this is off-topic. Basically, I want to get some idea before spending expensive money on international mail order. The question is really getting comment on how compatible is Linux on ...
0
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1answer
114 views

Ethernet video input to RCA composite output

I have a model B raspberry pi running raspbian with an 8GB sd card. I want to connect my laptop by ethernet cable to my RPi and then output the laptops screen over the RCA composite output of the RPi ...
1
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1answer
50 views

Forcing one of two wifi dongles

I have two wifi dongles connected to a RPi. I like to use one dongle (Edimax) as primary connection to my home router, and the other as access point (this one being an AWUS036NH). How can I force that ...
0
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0answers
72 views

Adding and Cascading Ethernet and USB Hub LAN9512 to Raspberry Pi

as the title suggested, I am trying to add 2 ethernet interface and several USB port to my Rasp Pi. Since this will be used in project and the client wanted me to make the device as small as possible, ...
1
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2answers
84 views

Raspberry pi reboots when usb wifi (Edimax EW-7811UN) is plugged without usb extension cable

This is an odd issue that there have been quite a bit of discussion about even on this forum. Possible suggested issues range from insufficient power to bad internal hardware design of the pi. When ...
0
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1answer
37 views

Identifying USB devices [closed]

I have several RS232 to TTL UART converters plugged into my Pi. The problem is that their device assignments change sporadically. Sometimes the first device gets /dev/ttyUSB0, and another time ...
2
votes
2answers
72 views

How can I increase USB voltage on multiple Pi's?

I'm in a situation where I have to leave something like 10-12 Pi's for more than a week, and I want to connect independent HDDs to each one of them. It seems impossible for me to obtain individual ...
0
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0answers
42 views

Problems reading data with usb to serial adapter

I made application in Java that receives requests over HTTP and forwards them to the serial port, and back. I am using RXTX Java library and usb to serial port adapter. From my windows machine where ...
1
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1answer
146 views

Raspberry Pi and the USB to TTL Serial Cable on Mac

I've logged all my progress here Raspberry Pi and the USB to TTL Serial Cable on Mac (unfinished). screen /dev/cu.PL2303-000013FA 115200 Here's the errors that I'm getting It just hangs with a ...
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0answers
36 views

RPi: Using WvDial (error 16) and/or Sakis3G with EE, for Headless

I'll try and keep it short and sweet - I am trying to create a headless RPi that will wake up and connect to the internet, be it anywhere. I found Sakis3G to be somewhat successful, and I have ...
2
votes
1answer
244 views

How to receive data via bluetooth on Raspberry Pi and transfer it to USB port

I would like to know the way by which the data received on raspberry pi via Bluetooth from some other device can be transferred to a flash drive connected to the USB port of raspberry Pi.
2
votes
1answer
67 views

Cheap COTS transceivers that work with Raspberry Pi?

I'm looking for a way to get an app running on a laptop to communicate with an app running on a Raspberry Pi. This is a home/hobby project, so looking for inexpensive COTS hardware and open source ...
1
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0answers
162 views

How to display video through Logitech Quickcam Express (V-UH9)

I am trying to setup my very old Logitech Quickcam Express (V-UH9) using motion. When I run motion, I see on the local ip address a grey box, with time and text being displayed (according to the ...
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1answer
41 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.
0
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4answers
132 views

How to identify the USB to Serial wire mismatched?

I am not alone, I experienced a similar problem as: "...instead of having the pin connections described as they should be they were mismatched so GND is described as TXD, TXD as RXD, and RXD as ...
0
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1answer
58 views

USB Movie Media Center

Problem I got a smart tv which already contains a good media center, but this media center is too overcrowded, means it has too much feautures and it's confused. XBMC is better than the media center ...
0
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1answer
52 views

Pi usb gps data connection issue with xgps or cgps

am having a similar issue. I can see that the receiver is getting gps data (lat/long/etc.) by using: gpsmon /dev/gps0 If I query: gpsmon /dev/ttyUSB0 (there is no reply.) However: ls -l /dev/gps0 ...
0
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1answer
77 views

How do I setup automount of any (mountable) USB drive in Raspbian?

I used fstab to mount a specific device automatically at boot in a specific location. That is very simple but not what I need now. Is there a way to setup the automount of any mountable USB device I ...
0
votes
2answers
438 views

WIFI USB adapter not detected

I'm using a WIFI USB adapter : TP-Link TL-WN725N Nano Adaptateur USB wireless N 150 Mbps. I plug it to my raspberry and configured it in /etc/network/interfaces . I added this : allow-hotplug wlan0 ...
0
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2answers
129 views

Safest way to power a hungry Wifi adapter and the Pi from a single 5V source

My Pi is destined for the skies, so it will receive power at roundabout 5.3V via the BEC (battery eliminator circuit) which will be capable of delivering up to 10A (heavy duty BEC it is), so sourcing ...
1
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2answers
125 views

Raspberry Pi as NAS

I was just wondering: Can I use my Raspberry Pi Model B as a Network Attached Storage? My plan is to have a wired connection from my router to the Pi, and a 2TB Exfat formatted drive attached to it. ...
1
vote
3answers
113 views

Transferring data from Arduino to RPi, Missing data

I had hooked up the Arduino Uno to the RPi through USB connection. The Arduino contains a light sensor and it will transfer data to the RPi. The baud rate used was 115200. This baud rate was used due ...
1
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1answer
315 views

What to do when raspbmc loses mounted usb hard drive?

I have a raspberry pi with raspbmc installed on. It used to run very stable, no issues at all. Since I have installed BitTorrent Sync, that has changed however. When I restart BitTorrent Sync or when ...
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votes
2answers
124 views

What GPIO pins are required to Power RPi? [duplicate]

We are using Raspberry Pi Model B: We used USB connector from PC - confirmed output - 5V, with 2 leads: Connected +5V to Pin 2 Connected GND to Pin 6 on connector - Inserted Ethernet cable ...