This is a simple set of makefiles and source code to get you started 
with avr-gcc. The ATtiny26 datasheet* is necessary to understand the 
special variables in the code. All of the examples can be downloaded 
into an ATtiny26 by issuing the command 'make install'.

Start with "blinky" which blinks an LED. A hex file is included so you 
can test your programmer and chip without needing to get the compiler 
set up. You can use 'make install' or download the file with avrdude 
manually.

When you get bored with blinky,  move on to "breathe" which 
makes an LED breathe like a macintosh in sleep mode.

The "quadrature" example tests reading an optical encoder using hardware 
interrupts.

Finally, if you're feeling bold, examine "servo" which controls a 
brushed dc motor with a high resolution optical encoder using the PID 
motion control algorithm.

If you wish to build your own chip flashing circuit, see the files 
"avrisp-buffered.gif" or "avrisp-unbuffered.gif". The first is more 
reliable and noise-resistant, but the second is extremely simple. 

*at http://www.atmel.com/dyn/resources/prod_documents/doc1477.pdf