I can't make a line following bot using a light/colour sensor in C# any help with the code for a robot to follow a black line?
I was thinking about an if statement, such as; if colorsensor = black; motorpair mvefwd.
something along those lines, if i'm being vague its because i'm a beginner at C#, sorry.

I'm afraid that this is not a C# forum but ROBOTC. The two are very different. What robotics platform are you using? Maybe you can ask on the forums for that specific platform.

= Xander

This is a code for LEGO Mindstorms and 2 Light Sensor configuration:

task main()
{
int err;
int u;
int k=9.5;
int v=35;
int es=SensorValue[S1]-SensorValue[S2];
while(nNxtButtonPressed!=3)
while(true)
{
err=SensorValue[S1]-SensorValue[S2]-es;
u=k*err;
motor[motorB]=v+u;
motor[motorC]=v-u;
}
}

I'm not sure what your code should be doing that it's not doing, but I can immediately spot an error. You're missing a pair of brackets for the while(nNxtButtonPressed != 3). Change that line to

and that should fix that problem.