I got a raspberry pi

I have two, but I don't know what to use them for. Any ideas would be nice. They are raspberry pi 2 model B I believe. I just got them a few days ago and don't know much about them. Posting this in Linux because they run it.

webserver, database, ftp server. I run all those on my pi 2, and its awesome.
This is my final project I'm making for my web design class.

EDIT: link removed for security reasons, and is no longer valid.

HTPC running XBMC.....at least that's one of my winter plans.

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@Noburt
Yes, you can do this.
Here is a great example:

Supplies needed:
velcro
scissors (for the velcro strips)
USB cable
Raspberry PI
Raspberry PI Case
SDCard
HD TV with USB service port (to power the Raspberry PI)
XBMC for Raspberry PI
Wireless keyboard / mouse that has dongle (don't use bluetooth)
USB wifi adapter

Now you can attach the Raspberry PI to the back of the TV and now it's a Media Center & you can play files from a server

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how do you do this? I have the newest version and it gets so hot, how can you run it 24/7 as a web sever it would surely just explode if more than 1 client was using it??

I have a copper heatsink on the cpu. I had left over copper vram heatsinks that I bought for a gpu, and it fit snuggly onto the pi. So far, the device had an uptime of 15 days before I rebooted it. Ran just fine.

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Did you get the heatsink kit?

I use it to program my arduino over ssh

Loved mine while I had it. Ran Kodi and a ubuntu mate image on it. Unfortunately my hdmi out stopped working altogether for some reason. I'm actually looking to try some of odroid's offerings soon

There is a good ARM assembler tutorial on http://thinkingeek.com
just try it for fun! It will be very educating!

I don't know much about Raspberry pi.Can you install linux and use it as "Workstation" of some kind?

Add an external HDD and build an ownCloud server. I'm using one of my Pi 2's doing this exact thing.

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Ah okay cool :)

When you say web server... what exactly are you hosting can i ask? :)

and FTP server, so your using as cloud storage do you mean or...?

@Cerimania At the moment, I am just hosting a project for my web design class. Later, I plan to make a web-managed database/ftp server, that I can access all my files from anywhere. I could stream movies I have ripped onto there, school papers, and other web projects.

As far as cloud storage goes, I use dropbox because of its ease of use on linux. Later I plan to make my own as I have 4 TB of free drive space.

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I have a RaspPi 2 on the way, not sure to do with it either.

Ubuntu Mate (15.10) is a good distribution that I am trying using a basic class 10 micro SD. Its looking good so far for libre office . I am waiting on a faster card to see what difference it makes,

My plan is to use it for sorting photos and backing them up to my home server when travelling.

Guys, please help.
I bought Rapberry pi 2, model B in hopes that I'll make a solution for my 78 year old grandfather to watch youtube videos on TV, he never used PC before. So watching videos is the only thing required by Rasp. I have installed ubuntu on it, but videos lag. Now I installed OpenElec but when I boot it shows only colored triangle. I am new to Linux and have only used Mint on my desktop for couple of months, without using Terminal. I need guidance regarding distro for Rasp. and setting it up, so when finished it would be as easy as possible to use only with mouse, with keyboard on the monitor. It should play videos on youtube and possibly on other sites, in 1080p. Learning this my self takes time which my granddad might not have.
Any guides are welcomed!

just use raspbian?

And a pi boots by default into terminal mode, you will need to initialize the gui in terminal

~$ startx

You can change this at any time to start into the graphical interface, but I would reccomend you configure this during the initial set up.

Videos lagging sounds like you need to incrase the size of the ram allocated for video memory. I run my pi headless so I set it to the smallest possible value. But you can try this:

Edit /boot/config.txt and add or edit the following line:

gpu_mem=16

Change 16 to 128. You can set as much as you want, but keep in mind that you will be sacrificing system RAM. Be mindful; but experiment.

And if your not familiar with how to do commands, make sure you're root:

~$ sudo nano /boot/config.txt

Nano should come on there, but if not

~$ sudo apt-get update
~$ sudo apt-get install nano

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I have installed Raspbian Wheezy, but it does not play videos. Any ideas?
Seems to me that this was a waste of money, because the horsepower of this device reminds a level of smart TV. Probably its exactly same.
Do I like have to buy codex packs now to be able to watch youtube videos? :)