Thames & Kosmos Robotics Workshop handleiding

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Thames & Kosmos

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Handleiding

PROGRAMMING

SAMPLE PROGRAM FOR THE LIGHT-TRACKING ROBOT

The light-tracking robot uses a light sensor and motor to rotate towards a light source such as a ﬂashlight. Test out

the program by holding a light source a few inches to the right or left of the light sensor. Watch as the robot rotates

toward the light source then stops once it is pointing toward it. This program is preloaded in the app in the Load Demo

Code menu. After testing out this program, try modifying it so that the light-tracking robot rotates away from the

source of light.

The ﬁrst part of the code is placed in a loop so that the light-tracking robot is always checking to see if the reading from

the light sensor is greater than 900. Once that value is greater than 900, the program exits the loop.

The program uses an if-statement to compare the ﬁrst (“a”) and

second (“b”) readings from the light sensor.

If the ﬁrst reading is greater than or equal to the second reading,

that means the robot rotated away from the light source. So, the

robot rotates in the opposite direction (counterclockwise).

The light-tracking robot then turns on motor 1, rotating

the robot to the right.

This part of the code saves the initial value from the

light sensor as the variable “a.”

If the ﬁrst reading is less than the second reading, that means the robot

rotated toward the light source. So, the robot rotates again in the same

direction that it initially rotated (clockwise).

The loop then repeats again, from the beginning, until the value from

the light sensor is greater than 900.

The robot then saves the second value as the

variable “b.”

Once the value from the light sensor is greater than

900, motors 1 and 2 are turned oﬀ.

Scan this QR code to view

online tech support videos

of the models in action.

Bekijk gratis de handleiding van Thames & Kosmos Robotics Workshop, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.