Gyroscope - Angular Rate Sensor

So I was looking for a new sensor to tinker with and I really wanted an Accelerometer. However, I am cheap and don't have a whole lot of money and so I bought a Gyroscope instead. This sensor measure the angular rate of movement. So here it is.

The Angular Rate Sensor XV-3500CB Gyroscope

Of course I did my usualy thing, build a test circuit to utilize this sensor. Using an Atmel Atmega48 AVR microcontroller I interfaced this sensor to it and used an LED light bar to indicate the rate of movement. To be honest, I was rather dissappointed with this sensor, it was well kind of boring. Its circuit is already designed and built onto this chip, using I2C bus or an A/D Converter, so no external hardware is needed.

And the last thing about Gyroscopes, they are not widely used. They don't give position, only angular movement. So one can use an Accelerometer instead, poll it periodically, and compare those positions with respect to time and calculate angular movement with some Physics.