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1500 questions
13
votes
1 answer

How can I find out if my webcam is compatible?

Possible Duplicate: Can I use a USB webcam? Is there an official or other list of webcams that have been tested on the RPi?
David Sykes
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13
votes
5 answers

SSH - connection timeout when connecting

My RPi is running Raspbian. I am trying to get SSH set up. I followed these steps to get a static IP on my Pi: Since my PC was connected to the LAN via WiFi, I used ipconfig to get the IP address, gateway, etc. of my WLAN card I used this data to…
nbsrujan
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13
votes
4 answers

Raspberry PI and fingerprint scanner

How can I make Raspberry PI work with a fingerprint scanner like this? I found something for Arduino only (http://learn.adafruit.com/adafruit-optical-fingerprint-sensor) Are there any tutorials for the Raspberry or libraries? I couldn't find…
brgsousa
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13
votes
4 answers

Use SSD as RAM?

How can I use SSD disk space as RAM to run large-memory jobs on the Raspberry Pi? Is this the same in Linux as creating "ramdisk" as per this Q&A?
719016
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13
votes
12 answers

Can I use all 4 cores of the Raspberry Pi's CPU?

I was wondering if there is a simple way to "turn on" all 100% of the CPU so that I can run processes faster (such as python calculations). 1) Is this possible? 2) Is there an easy way to revert back to normal? 3) Is there a way to use less CPU if…
NaN
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13
votes
1 answer

How to INVERT SCROLLING DIRECTION on trackpad in Raspbian Stretch?

I would like to invert the scrolling direction so that when I scroll down (using two fingers in a downward direction) on my trackpad, the page also moves down (i.e. to content lower down). I did this in Raspbian Jessie previously like this by…
nu-bo
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13
votes
2 answers

What is the mmcqd process?

I have a Raspberry Pi running Raspbian Wheezy headlessly with all graphics-related software uninstalled. I have bitcoind running, which is mostly consuming most of the resources. Usually, when I check the processes via top, I can see that only…
Steven Roose
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13
votes
2 answers

Raspberry Pi apt-get update/upgrade on Raspbian hangs?

Whenever I try to update my pi using sudo apt-get update && sudo apt-get upgrade it will often hang at some point during the installation. It's been different ones each time, but the last was pulse audio. Furthermore, I am able to ping the pi and an…
whotyjones
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13
votes
3 answers

Setting up the Raspberry as a data logger

As the title states I'm working on a simple embedded application which reads some information from the serial port and logs it to file, in addition to displaying a bit of status on the display. I'm now at the stage the logging seems to be running…
doynax
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13
votes
1 answer

Is current Raspbian Pi 3 B 32 or 64 bits OS?

How do I verify my OS as 32 or 64 bits? I need that to select NEW version of Eclipse, not the one which came with installing Raspbian ? bit system
Jan Hus
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13
votes
4 answers

VNC error "No configured security type is supported by 3.3 VNC Viewer"

Ubuntu 16.04 LTS fully upgraded on computer Raspbian Jessie Lite fully upgraded on Rpi 3 I can SSH no problem into the raspberry, configured it from raspi-config to enable vnc at boot. I then tried to connect to it via tightvncviewer and got the…
Caterpillaraoz
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13
votes
2 answers

Why are there 8 ground pins on the Raspberry Pi?

On the image below the pin layout is shown for the Raspberry Pi and it can be seen that there are 8 GND pins for only 2 5V + 2 3.3V pins. What is the purpose?
Mehdi Nellen
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13
votes
2 answers

Pi powerd OBD-II Computer

I recently built an OBDuino32k with my Arduino Uno. Unfortunately, I built the wrong interface, so I can't use it with my car. I built an interface for ISO instead of ELM. I bought a Raspberry Pi the other day, and I'm thinking, since I have…
Thomas
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13
votes
4 answers

Raspberry Pi Raspbian Web Kiosk Virtual Keyboard Solution

I followed Alan D. Moore's step-by-step guide to have my Raspberry Pi running in kiosk mode. I did my own configuration as I needed it to run on a touchscreen with no physical keyboard and mouse. Here's how my ~/.xinitrc file looks. xset s off xset…
Janson Chah
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13
votes
3 answers

Why am I getting far slower internet on my Raspberry Pi when compared to my Mac and Windows Computer

I have reasonably fast broadband, which on my Mac, using Safari 6, is perfect for my uses. Webpages load quickly, and I am extremely satisfied with it overall. My Raspberry Pi is another story. I can't link to my speeds, so you will have to trust…
xxmbabanexx
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