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by nucleocide
Wed Jul 11, 2012 2:07 am
Forum: Automation, sensing and robotics
Topic: GPIO with Arch Linux
Replies: 2
Views: 8047

Re: GPIO with Arch Linux

Awesome, thanks, worked like a charm!

If anyone stumbles upon this thread when trying to turn on lights or something similar with their GPIO, you'll need to run that export command, as well as the following:

echo "in" | sudo tee /sys/class/gpio/gpio22/direction
by nucleocide
Sat Jun 16, 2012 7:58 pm
Forum: Automation, sensing and robotics
Topic: Node.js Robotics Suite
Replies: 4
Views: 2506

Re: Node.js Robotics Suite

Sorry, I just saw your reply.

I found a pretty cool looking node.js library for talking to GPIO:

https://github.com/EnotionZ/GpiO

Unfortunately, it doesn't seem to work under Arch. Nothing I'm trying to do with GPIO appears to work under Arch.
by nucleocide
Sat Jun 16, 2012 7:27 pm
Forum: Automation, sensing and robotics
Topic: GPIO with Arch Linux
Replies: 2
Views: 8047

GPIO with Arch Linux

The /sys/class/gpio directory within Arch Linux doesn't appear to be in the same format as what a lot of website describe. This is the contents of that directory: $ ls /sys/class/gpio/ export gpiochip0 unexport I see a lot of places referring to directories like /sys/class/gpio/gpio#/direction where...
by nucleocide
Sun Jun 10, 2012 3:46 pm
Forum: Beginners
Topic: How to mount remaining SD Card?
Replies: 1
Views: 548

How to mount remaining SD Card?

I have an 8GB SD card . I went with the Arch linux distro. I just realized that ~2GB are available to the system. How would I go about making use of the remaining ~6GB of the card? $ df -h Filesystem Size Used Avail Use% Mounted on rootfs 1.8G 750M 923M 45% / /dev/root 1.8G 750M 923M 45% / devtmpfs ...
by nucleocide
Mon May 14, 2012 8:47 pm
Forum: General discussion
Topic: SD Card Benchmarks
Replies: 302
Views: 239297

Re: SD Card Benchmarks

Thought I'd post my results for everyone's benefit. I tested these all on the same card reader and same computer. Short version, Sandisk Ultra 8GB is awesome. 512MB Sandisk Sequential Read :    10.343 MB/s Sequential Write :     2.960 MB/s Random Read 512KB :    10.245 MB/s Random Write 512KB :    ...
by nucleocide
Sat May 12, 2012 11:06 pm
Forum: Automation, sensing and robotics
Topic: Node.js Robotics Suite
Replies: 4
Views: 2506

Node.js Robotics Suite

I plan on building a suite of tools for managing various aspects of a computer, specifically with the plan of running it on a Raspberry Pi. I'm going to maintain the code on GitHub, and release them under a dual MIT/GPL license. The first Node Module I am working on will handle wireless: https://git...
by nucleocide
Wed Nov 23, 2011 5:56 pm
Forum: General discussion
Topic: $30 Shipped, 32GB, Class 10 SD, today only
Replies: 8
Views: 1292

Re: $30 Shipped, 32GB, Class 10 SD, today only

Woot is an extremely popular and reputable website here in the states. They are owned by Amazon.
by nucleocide
Wed Nov 23, 2011 5:43 pm
Forum: General discussion
Topic: $30 Shipped, 32GB, Class 10 SD, today only
Replies: 8
Views: 1292

Re: $30 Shipped, 32GB, Class 10 SD, today only

Woot is selling a 32GB class 10 (10 MB/s read/write) for $30 USD shipped. Today only.

http://www.woot.com/
by nucleocide
Mon Oct 31, 2011 2:00 am
Forum: General discussion
Topic: 6V Lantern Battery
Replies: 11
Views: 3947

Re: 6V Lantern Battery

<r>I\'ve been scoping out the forums, and haven\'t seen anything about this.<br/> <br/> Does anyone know if a standard 6V lantern battery can run this thing, and if so for how long? They are pretty big and only cost a couple bucks, it seems like they might be a perfect batter for powering a mobile R...

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