Little project based on Arduino

Other Hardware 3rd Party Boards
1

Hello,
I'm thinking about making a project with only one I/O connection (or maybe a couple).
The point is, using an Arduino board would be a waste of pins/energy...wouldn't it?
Is there an easy way to use the power of Arduino (IDE, bootloader(?) etc...) to make this project?
Is there an article/tutorial where to start?
Keep in mind that I'm not familiar with such things butI have some basic knowledge of electronics.

Thanks in advance.

Gianmarco

2

You may want to try an ATtiny chip. Here is a tutorial: http://hlt.media.mit.edu/?p=1695
It does require some external components though.

3

Can use a small version of arduino
thruhole

or surface mount

4

If you have an Arduino Uno or similar the tiny's are perfect for such a small project.
The only components you need beside the Attiny is a 10mF capacitor (and maybe a 10 kohm resistor)
You can download the core for Attiny 45/85 here:

http://code.google.com/p/arduino-tiny/

And for the even smaller Attiny13

5

Thanks you all for your great - and quick - help!
That was really appreciated!
It appears simplier than expected, I think I'm going to follow the Attiny way.
Just one more question. Is it possible to add Ethernet/Wifi capability in a similar simple way?