LEGO MINDSTORMS NXT Segway with DI IMU Sensor Following a Line

[hady6053]

how does it balance



[windra31290]

Dear Laurens...

I want to know how to control the power of right motor & left motor,so that it can follow the line...

could u tell the algorithm or code in java??because I also make balancing robot but it can't follow the line..

best regards

Pras

[Laurens200]

@windra31290

The program does proportional line following. light_error = SensorReading - AverageLightValue; steering = light_error*2/3;

That's it, basically. And, AverageLightValue = (black_reading+white_reading)/­2. The 2/3 is a constant value found by experimentation.

[katybrewer1966]

so cool.

[legomaniacman]

That is amazing. Can it go up a small incline?

[Laurens200]

@legomaniacman It can go up an incline. Backwards though, or the Light Sensor might get in the way :)

[ctimesrocker78]

I could never build this. The only thing I can build without instructions is a car.

[Laurens200]

@ctimesrocker78 Same thing for me when I started years ago. You'll learn on the go! :)

[ctimesrocker78]

@Laurens200 Thank you! :)

[holyhell5050]

Excellent stuff! :)

[bain006]

Laurens --

Amazing! Yet another impressive demonstration. Would love to see the code for that, too.

-- Will

[falanginho]

What the di imu do?

[MrNXTpro]

Is that the LEGO color or light sensor? Can you post the Code?

[DxtrIndustries]

Fantastic creation!

[philipstar10]

cool!