Line Tracing
Buggy Base contains two Color Detectors and two ColorLEDs. These joined together can be used to detect when a line is detected based on its configured color. With this information, it is possible to steer the motors either left or right to stay on the line. The follow blocks will use the Color Detectors, ColorLEDs to stay along (trace) a line.
Block: Color Trace (Go along color)
Start of line tracing can be called with this block.
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Function: This block controls the Buggy Base to follow (trace) along the chosen color line.
- Color - color of the line to trace (either red, green, blue or black).
| Note: This block does one adjustment when it is called. This means this block has to be constantly called in order to make frequent adjustments to stay on the line.
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| Note: This block assumes that the color line is against a white background. (For example, a color line drawn on a white piece of paper.) Therefore, there may be issues when using it against a non-white background.
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| Note: The speed of tracing cannot be set.
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Example 1: Follow a black line
Note: this example is performed in offline mode  .
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Example
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Description: When activated, the program will trace along a black line. Download and print this map to test it out. File:Line Tracing Example1 Map.pdf
| Note: This example run the Trace Line block constantly inside a Forever block. Each time the Trace Line block, it adjust the Buggy Base to stay on the line. Therefore, it is important to be constantly calling the Trace Line block or else the it will go off the line.
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