Line follower concepts

Here are some essential programs to learn and utilise to help your journey on the LEGO EV3 Software. First the line followers, there are four different types, according to EV3Lessons.com, simple, smooth, 3-stage, and proportional.

• The simple line follower program is the most basic of the four types, it also wiggles a lot because of the sharp turns, so it is not smooth.
  • Make sure to calibrate your censors, since the programs use the EV3 Colour Sensor in Light Sensor.
• And so, the second type would be the smooth line follower, where it is almost exactly like the simple, however the turns are not as sharp, this will result in issues on sharp curves.
• The third type is the 3-stage follower, this is best used for straight lines, and nested switches are needed
• The final type is the proportional follower, which makes proportional turns. This type works well on straight and curved lines.
  • The pseudocode of this follower is: first, reset the rotation sensor, compute the errors and determine the distance from the line, establish the correction amount and adjust the scaling factor, then use the correction value to adjust the robot’s line following.