Example:how to make games on scratch
When mBot travels within the surface of the white table (or other light color table), the line-patroling sensor can receive the returned infrared signal and the value is 3 (both Sensor1 and Sensor2 return 1); At the moment that mBot travels to the edge of the table surface, the line-patroling sensor cannot receive the reflected infrared light and the value is 0 (both Sensor1 and Sensor 2 return 0). When the value of the line-patroling sensor is 0, it is deemed to have reached the edge of the table surface and will be stopped. #how to make games on scratch#
Also if you use this program, mBot will stop moving forward when it detects black.
|Task 1||Modify the script to let mBot move back when it detects a cliff.|
|Task 2||Modify the script and use block to achieve the effects of this example.|
Attached – Line-patrolling sensor structure diagram
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