©2017 The LEGO Group.
8
Program with WeDo 2.0
Program strings are designed for computers to understand, and pseudocode is
a way to explain a program so that people can understand it. Good pseudocode
respects program structures, but uses common words.
In WeDo 2.0, pseudocode can also be used to describe each step of a sequence.
There are no specific rules to follow when writing pseudocode, but you will see
that using a consistent structure will help you and your students while using it.
Example One
1. Start program
2. Start motor at power 1
3. Wait for 1 second
4. Stop motor
Example Two
1. Start program when “A” is pressed
2. Wait for Tilt Sensor to detect Shake
3. Start motor this way
4. Repeat steps 2 and 3 forever
Example Three
1. Start program when “A” is pressed
2. Wait for Tilt Sensor to detect No Tilt
3. Stop motor
4. Turn LED on colour 9 (red)
5. Repeat steps 2 to 4 forever
What is Pseudocode?