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

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11 views

How can I record audio from my RPI and save it to my PC (server)? [duplicate]

I would like to record audio from a usb device connected to my RPI and save it to a server (my pc on the same network). OS: RASPBIAN Debian Wheezy Model: B USB Mic: Sound-Tech 1000 Once the USB ...
1
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0answers
28 views

External HDD will not spin down

Good Evening, I am having an issue with my external harddrive, and - it is quite annoying. So, I purchased the Samsung M3, http://www.amazon.co.uk/Samsung-Slimline-Portable-Hard-Drive/dp/B008PABFX8, ...
1
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0answers
26 views

Why does inserting a USB device trigger activity on the pins

I have this strange phenomenon and unable to wrap my head around it. I have raspberry pi model B (26 pin header). On pin 18 I have a IR Beam Sensor which basically detects a broken beam event. I do ...
0
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1answer
32 views

Raspberry Pi as USB serial device

I have two Model A+ Pies and a Model B+, as well as a couple short USB A-to-A Male cables. I want to be able to have the A Pluses able to communicate over serial to the B Plus. The reason I'm doing ...
0
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0answers
41 views

Why is my usb flashdrive automatically mounted, without fstab?

I plugged in a usb storage device for the very first time, and it automatically mounted the FAT32 partition called "HMN"? At first i was pleasantly surprised, but it's mounted as root. Q: How can i ...
3
votes
1answer
36 views

USB power cycling problem

I am using a USB 3G stick on a RPI B+ (3.18.7+) to ftp measurements from a sensor platform. To limit RF interference, and save power, I am turning it on and off a lot (which on the B+ is now possible, ...
0
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0answers
11 views

pimame usb controller X button Crash [on hold]

I just got my Snes usb controller :D and I have a pi so i got Pimame for the pi. I installed Super mario world for Snes emulator and when I pressed X the whole emulator crashed. Please help me PS: ...
0
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0answers
29 views

Does the Raspberry Pi have USB power saving mode?

I have an issue with my Raspberry Pi 1 (Model B). It's connected to a USB hub (external power supply) with a card reader (keyboard emulated - plug&play). Everything works fine and all but if I let ...
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0answers
16 views

Bypassing mini micro usb dc 5v. With male usb spliced … Just need proper wiring instructions [closed]

Sony x3 Bluetooth speaker hard wired so it could still be used as Bluetooth Turns on but won't charge, having to do with the data cable pin missing Please respond as I have everything in pieces in ...
1
vote
1answer
40 views

which is best for rasbian, 'udev' or 'mdev'?

im trying to detect any mass storage whether been inserted to my Pi. If its a usb mass storage device(a pendrive), i want to transfer files from pi to the pendrive and unmount automatically once the ...
3
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1answer
442 views

Is setting `max_usb_current=1` to give more power to USB devices a bad idea?

I've been searching around for more information on the /boot/config.txt configuration directive max_usb_current, trying to find out exactly what happens when that is set to 1, but it's hard to find ...
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0answers
37 views

Stream Logitech C615 using mjpeg-streamer

recently I thought about making a streaming camera with my Pi and a Logitech C615 I had, so I followed a tutorial on MAKE.com, but I haven't been able to get it streaming properly. I'm up to the point ...
1
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2answers
67 views

Boot from usb if available

I have my raspbian OS located on a 3TB external harddrive only some bootmanager stuff left on the SD Card. (if i remember right i followed this guide) I want it to boot from the sd card ONLY if there ...
1
vote
1answer
70 views

How can I connect a kinect to my raspberry pi

The kinect plug looks close to USB but it's not quite the same. How do I get this to plug into my rpi? Do I need to cut the plug type and attach a regular usb plug instead? I've looked for a ...
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3answers
44 views

Dropout Wifi USB Dongle

my raspberry pi b+ is connected to my network wifi through a Belkin F5D7050 usb dongle. The connection works perfectly for about 10 minutes or more but after this time period my raspberry becomes ...
1
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0answers
81 views

fsck crashes when booting from USB

I have set up my Raspberry Pi 2 Model B to boot from a USB flash drive like in this article. Basically, I have burned the Raspbian image to a USB drive, then copied the boot partition to my SD card, ...
1
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1answer
287 views

Wifi Dongle not appearing in lsusb

I have recently purchased a Model 2 Pi and a TP-Link WN725N wireless USB device. According to what I have read, since it is a V2 WN725N device, I need to download and install the Realtek 8188eu ...
0
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1answer
60 views

Raspberry Pi newcomer questions

I have the Raspberry Pi model b+ 512mb and 8gbs noobs edition. I was wondering what basic programs i should install like a way to eject usbs. I am mostly used to windows but i do like using ubuntu ...
2
votes
1answer
484 views

Is there a 802.11ac dongle for the raspberry pi or pi 2?

I am looking for a 802.11 ac dongle for the raspberry pi 2 actually. Is there such usb a dongle on the market with drivers for the pi? Edit: To be clear I understand the USB2 bus will limit the ...
0
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0answers
61 views

Adafruit GPS module (plugged in via SMA to u.FL adapter to usb) is preventing all of my other USB devices from working

I just got the Adafruit GPS breakout kit. I've also purchased Adafruit's SMA to u.FL adapter to allow me to just plug it into my USB port. However, whenever I do, it prevents all of my other usb ...
0
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0answers
30 views

Raspberry Pi USB Devices

I have two USB RFID. They are connected to Raspberry Pi and sends data to pi. How can I know which one is sending data? Note: Running only one RFID at the same time. Thanks
0
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1answer
78 views

Keyboard and Wi-Fi dongle don't work after updating kernel

I have installed Raspbian on my Paspberry Pi and was experimenting with developing for it. I have followed this tutorial and cloned the kernel on an Ubuntu VM to cross compile it with raspberry tools. ...
0
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0answers
124 views

USB Issues with recent kernel build

I am trying to roll my own image for the raspberry Pi, I am using a B+ model Pi. What I want to do is build my own kernel and for now have it load busybox or something similar, but I seem to be ...
0
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1answer
42 views

Mounting one USB stick to multiple locations [closed]

I have a USB stick permanently mounted to my Pi to increase its storage capacity and to reduce strain on the ever so volatile SD card. At present, the USB stick is mounted to one of the users' home ...
3
votes
1answer
436 views

Multiple Display Screens

I want to build a mini multimedia system based on the raspberry pi B+, which has 2 display screens: The main screen (like a 42" LED TV), which plays the main video in Full HD. HDMI RCA/AV/Composite ...
0
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1answer
52 views

Raspberry Pi as a link between a scanner and cloud storage

I've never had a Raspberry Pi in my hands. I'm just looking for a device to perform a specific single task and I wonder if Raspberry Pi could be my solution. My situation is this: I've got a portable ...
1
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1answer
27 views

Can I use PS/2 barcode scanner with the Compute Module?

I'm about to start a project for the Compute Module where I use a barcode scanner but I don't know if it's better to use the PS/2 or the USB version. If I could choose, I would go with PS/2. I what ...
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0answers
49 views

Running two camera at the same time (Pi Camera & USB camera)

I would like for my project to have one camera (PiCamera) Streaming video. And another USB Camera (PS3 Camera) taking pictures when I execute this function: def grabPicture(self): grab_cam = ...
1
vote
1answer
103 views

USB wifi won't connect after reboot

I have two USB wifi adapters plugged into a powered hub. When I reboot, one of them (wlan1) does not show. In order to get it to show I have to unplug it and reinsert it. Then wlan1 shows on a ...
1
vote
1answer
69 views

Is it possible to connect zigbee and a GSM modem over the same RX, TX GPIO pins of Pi?

I would like to connect a XBee module (Zigbee) and also a GSM modem for voice and SMS. From what I have seen, mostly both uses the Rx, Tx pins of Pi for serial communication. Other option would be to ...
0
votes
1answer
39 views

Missing /dev/ACMX on Arch linux ARM when connected to Arduino

I want to be able to communicate with my Arduino serially using the pySerial module; however, when I connect using usb, no /dev/ttys appear - the device only appears in /bus/USB/001. When I plug it ...
1
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1answer
108 views

The pi as a mobile, off-grid outdoor device

How can current Raspberry Pi power and display technology be used to create a practical, outdoor computer for light weight text editing or programming off-the-grid and in strong ambient light ...
1
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1answer
52 views

USB Wifi adopter Comfast CF-WU715

I would like to buy comfast CF-WU715 wifi adopter,In the description of this product they have mentioned that this is supported Win and linux. So can i use this with raspberry pi b+? description here ...
0
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1answer
35 views

USB drive is rejected

I stuck a USB Drive into my raspberry pi, both of which, obviously, have files on them. The pi violently told me that permission was denied, and I could not view the files on the USB Drive. Is there a ...
0
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1answer
391 views

Drivers for dwa-171 wifi usb dongle

I'm having trouble to compile and use drivers for dwa-171 wifi usb. I have tried a lot of things but currently i'm unable to load module. Recap of what i have done so far: Getting kernel sources: ...
0
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1answer
67 views

Connect my raspberry to my pc by usb

I would like know if it's safe to connect my Raspbery Pi B+ to my PC by usb please (usb to usb), I want display the micro sd card of my raspberry on my windows.
0
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1answer
108 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
69 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
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1answer
61 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
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2answers
67 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
318 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
74 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
32 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
202 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
35 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
188 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
79 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
293 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 ...
1
vote
1answer
63 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
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1answer
396 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 ...