Introduction

-Ideas

Two Learning Objectives

Learn the branch structure

Usage and comparison of variables

Knowledge Points

If .. then block

If .. then otherwise block

The value of the sensor will be saved into a variable

I. If .. then block

introduction
example

II. If .. then otherwise block

1. introduction

double branch structure
upper part of branch will run if conditions are met
lower part of branch will run if conditions aren't met

2. example

III. The value of the sensor will be saved into a variable.

1. introduction

NOT misjudge the sensor values

2. example

Programing Ideas

The Idea Description

Branch Structure

Branch structure is used for determining a given condition and controlling the flow of the program based on the judgment result.

Thinking Process

Try It

Scripting 1

Flow Chart

Click the flag to start the program.
The LEDs will be green light when the button is pressed; otherwise, the LEDs will be red.
Turn off the LEDs and repeat the if .. then block.

Scripting2

Flow Chart

Click the flag to start the program.
The light sensor will sense the intensity of light and compare it to specific value(set 300 here).
Base on the comparison, it will take different actions.
If the light intensity is smaller than 300 mbot will ring G4 for half beat; otherwise, mbot will ring C4 for half beat.

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