Here you will find some tips about programming an arduino. There are many sites which have good arduino tutorials but most of them do not go into details of what i find the more difficult programming bits and pieces. Here you can find some of these. In addition you can find how to interface several different integrated circuits to the arduino. These mini projects include the hardware and software needed to make the project. So dont be shy and simply try it. They are really simple so anyone can make them. You will still get the kick from making them work. 🙂 There are several accelerometer and gyroscopes which i experimented with whilst making the segway clone, but also include some real time clocks, temperature sensors and magnetometer. There is even an article about how to interface the polar heart rate chest belt to an arduino. If you have any specific ideas of integrated circuits you would like interfaced to an arduino please let me know and i will see if i can make an arduino tutorial out of it.
Just click on the link below and you will be directed to the corresponding arduino tutorial.
Arduino tutorial Datasheets
If you are looking for the datasheets for these you can find them here.
Inverting a bit PortD=^bit4;