Good articles about Arduino and IMU

Kalman filter is the one of the filter, or signal processing technique that lures me.

I wanna make a small system (via Arduino) to implement it and act as the lab material of embedded system tutorial.

Some useful websites and source code listing here :

• Arduino 5 min tutorial -- IMU 
• A practical approach to Kalman filter and how to implement it
• TKJ Eelectronics's Github

Besides, here is the Arduino PID lib.

Great article : Faster analogRead()