Raspbian has Arduino 1.0.1 in the repository's.. Simple "sudo apt-get install arduino", sets all the permissions and everything..

It's common for a microcontroller to have many fewer A-D converters than it has analog pins, with an analog multiplexer in between the pins and the A-D converter.  The Atmel AVR used on the Arduino only has ONE A-D converter, fronted by a 16
:1 analog multiplexer (some of whose inputs are not connected)

I had no idea it worked like this. Your explanation was very enlightening. Thanks.

I disagree that it'll NEVER be as easy as the Arduino. The Maple Leaf board uses an Arduino style IDE, and is exactly like the Arduino when programming it. The Maple uses an STM32F1 if I'm not mistaken.
As for an example sketch.. I'd like to see at least one of the ADC's get read, and then use that information to drive a PWM output. Maybe a stepper motor and i2c example too.
At $8-$15 for a STM32 board, it'd make an extremely nice RepRap brain. Overkill, for sure, but for the price...

Maybe it'll be better with an RTOS Linux on it?

It's a shame it's not as simple as simply adapting the Arduino environment/compiler to work on the STM32 boards.. I got the F4 back when it was free, and recently scored an F0 freebie as well.

That'd be THIS weekend. It may be a Mini Maker Faire, but it's the first Maker Faire ever in Seattle. I imagine if this one does well, we'll get the real deal next time around. So everyone needs to show up!
More details here: http://makerfaireseattle.com/

The Raspbian distro (highly recommend, that FPU dramatically improves performance) has Arduino 1.0 in the repositories. Certainly better than the 010 the base Debian distro installed.. And certainly easier to do an "apt-get install arduino" than installing it manually.

The Arduino IDE seems to run really well. As far as Java apps go, the Arduino IDE is pretty light. The Pi would definitely make a good Arduino programming platform for students to learn on.

Is there a device like the MAX232, but instead of going from 5v to 12v, goes from 5v to 3.3v? Seems like this would be handy.

Cool. The default Debian install had 018 in the package manager. I never could figure out how to update it to 1.0 (1.0.1 now). The only thing I see being a problem with your instructions is you don't cover the final install, which would put it into the apps menu in the window manager..

Just as a point of note, you can use beef sticks from the convenience store as a stylus for this sort of thing. Much cheaper and quicker to acquire than the capacitive stylii.

Sounds like someone needs to come up with a non-Java Arduino IDE, maybe native C++, maybe Python.. Something lighter. Saying 256megs of ram isn't enough just boggles my mind. I learned to program Java back when 64mb was a luxury. Bloat bloat bloat. Given all the trouble Oracle is causing lately, it's probably a good idea to be looking for the exits when it comes to Java, anyways.

http://hlt.media.mit.edu/?p=1695   Check out this page, under the ATTiny84, should cover your pin definitions on the 24 as well.

Haven't looked at your source, just the examples above. If you changed the write from a void, to a size_t (I'm not familiar with what that is, but it's something other than a void, for sure), don't you have to have a return(0); at the end of that function now, where you didn't previously?

This month's get together will be the 3rd Sunday, rather than the 2nd, due to Mother's Day.
Also, we will have a booth at the Mini Maker Faire in Seattle, June 2nd and 3rd. If you can make it, please come say hi.