LEGO nxt Gino 2.0 precision driving software testrun

The new Gino 2.0 programmed in NXC. Here featuring the new precision software. The test was as follows:
- set travel speed to 50
- go fw till 20.0 cm
- turn left 90 deg
- go fw till 20.0 cm
- turn left 90 deg
- go fw till 20.0 cm
- set speed to 0
- turn left 90 deg
- set speed to 100
- turn right 90 deg (slowly)
- set speed to 0 if target heading reached

Category:

Entertainment

Tags:

• lego
• nxt
• robot
• software
• nxc
• precision
• drive

[cyborgyn]

This navigation depends on the servos' built in rotation counter. I calibrated it with measurement of the wheels and the distance of it's tires of each other. It does the math all inside the program.

Ofcourse because of the lack of the compass sensor, it is a good chance of getting misscalibrated through time... :)

[brdavis5]

Question: how exactly did you get the turns at 90°? In other words, how did you calibrate it, and how accruate is it ultimately (say, repeating the square a dozen times), or does it use a compass sensor?