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106  Forum 2005-2010 (read only) / Exhibition / Re: Self Balancing Robot on: October 29, 2008, 08:02:44 am
Sure, i'll post the code this evening as i get home. Be warned that the code is a real mess smiley

Anyway, i adapted the code for the kalman filter from these two sites:

The rest is the pid controller (not that complex), something to use the LCD and other glue.
107  Forum 2005-2010 (read only) / Exhibition / Self Balancing Robot on: October 29, 2008, 07:26:49 am
Hello, i've been working on a self balancing robot, based on Arduino.
I used an RD01 drive system, an IMU combo board with 2 accelerometer and a gyroscope.

The system features a kalman filter to acquire data from the IMU and a PID controller to control the motors.

The robot is actually able to stand by itself indefinitely, but it's not completely stable, either becouse of my software or becouse of the motors that have a little "loosiness" (a couple of degrees of "free" rotation). I'm still working on it smiley

You can check some video here:

More info here:

108  Forum 2005-2010 (read only) / Exhibition / Re: NOkia LCD & Joystick Shield for Arduino on: October 06, 2008, 08:10:55 am
great smiley
the joystick looks a little small anyway..
109  Forum 2005-2010 (read only) / Exhibition / Re: Levitating magnet and improved Serial library on: March 05, 2009, 04:44:01 am
fantastic and original project smiley
110  Forum 2005-2010 (read only) / Exhibition / Re: Top 40 Arduino Projects of the Web on: January 28, 2009, 04:02:45 am
great list! very inspiring and interesting!
111  Forum 2005-2010 (read only) / Exhibition / Re: my 1st minisumo on: February 10, 2009, 10:50:37 am
great robots!

why don't you show it on smiley
112  Forum 2005-2010 (read only) / Exhibition / Re: Keyless Entry System Using the Arduino on: October 20, 2008, 02:10:09 am
cool idea smiley
113  Forum 2005-2010 (read only) / Bar Sport / bodhilabs vpack resellers in europe ? on: February 13, 2009, 05:37:33 am
Hello, i'd like to purchase a couple of vpack devices from but the ship from US..
Is there a reseller in Europe (i'm in Italy), or alternatively can anyone suggest something similar, expecially for 2xAAA or 1xAAA to 3.3V?

Many thanks smiley
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