MindStorms Line-following Maths
x-axis=sensor input .... y-axis = direction ouput to motor
Use the graph above to find the best values for m and c.
The horizontal axis (x) is the input from the line sensor. 0=black, 100=white.
The vertical axis (y) is the direction to the motor. -100=full left turn, 0=straight, +100=full right turn
Adjust c and m until the line fits what you need:
- the x intercept should be the light input value you want your robot to start turning at. (typically 50-80)
- the y intercept should be the maximum amount you want your robot to turn. (typically 50-100)
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