cannot perform normal line following even though programming is completed. RGB Line Follower
Learning Method is as follows:
Adjusting the color of fill light: Long pressing the button to select the color of the fill light
that is suitable for the current environment.
Learning background color: Installing the RGB Line Follower module at the place to use it,
so that all the 4 RGB lights directly face the background of the arena. Click the button, when the four
indicators start to flash slowly, it indicates correct operation. After waiting for 2 to 3 seconds, the
indicators stop flashing, it indicates the completion of background color learning.
Learning track color: Installing the RGB Line Follower module at the place use it, so that all
the 4 RGB lights directly face the track. Double-click the button, when the four indicators start to flash
quickly, it indicates correct operation. After waiting for 2 to 3 seconds, the indicators stop flashing, it
indicates the completion of track learning.
Test Confirmation: Use the four probes to confirm that RGB Line Follower can correctly
detect the color of background and track. When the background is detected, the LED corresponding to
the probe turns on, and the corresponding LED turns off when the track is detected.
Re-learning: Should any change in the arena, environment, RGB Line Follower installation
location, etc., it is recommended to learn them again. The learning information will be saved in eeprom
to prevent loss.
5.
Programming tutorial
5.1 Installing RGB Line Follower plug-in
When using mBlock3 for the programming of RGB Line Follower, the RGB Line Follower plug-in
must be installed. To install the plug-in, open the mBlock software → Extension → Extension Manager
→ Find RGB Line Follower → Download plug-in package.
The RGB Line Follower plug-in is based on the coding blocks that can be used by default line
following algorithm. Its coding blocks are as shown in Figure 3.
Figure3: RGB Line Follower plug-in statement blocks
