Leçon 1, Chapitre 1
En cours

Robot intelligent : Suiveur de ligne – Logique

Yann KIDSHAKER 18 mars 2026

Overview

So far, we’ve made a body for our robot and given him a brain AND an enemy-hunting upgrade. But we should know the logic behind it. Let’s see how our robo-comrade will hunt the bad guys down.

The logic is pretty simple. What is more, you already know the part concerning the robot’s motion. Refer to the previous mission’s training for the logic and script for the same. All that remains is to decide how to make the robot follow your enemy.

Logic

How, or rather when the robot follows anything depends on the state of the two sensors.  If both sensors are ON, that means the object is in front; the robot should move in the forward direction.IR sensor Follow me_forward

If only the sensor on the right is ON, it means the object is in the right, and hence the robot should turn right.IR sensor Follow me_right

Similarly, when the object is to its left, only the sensor on the left will be ON and the robot should turn left.IR sensor Follow me_left

If there is no object within 10cm, both sensors will be OFF. Therefore, the robot should stop.IR sensor Follow me_stop

Flow Chart

Below is the flowchart for the above logic:

follow the enemy flowchart