SunFounder PiCar-X Kit
The Ultrasonic get distance block will read the distance from the PiCar-X to an obstacle directly ahead.
This program is simplified with a Variable. For example, when there are multiple functions in a program that each
need to use the distance to an obstacle, a Variable can be used to report the same distance value to each function,
instead of each function reading the same value separately.
Click the Create variable.. . button on the Variables category, and use the drop-down arrow to select the variable
named “distance”.
The Print function can print data such as variables and text for easy debugging.
122 Chapter 6. Play with Ezblock
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