Book Image

Scratch Cookbook

By : Brandon Milonovich
Book Image

Scratch Cookbook

By: Brandon Milonovich

Overview of this book

Scratch 2.0 is an easy to use programming language that allows you to animate stories and create interactive games. Scratch also gives you the capability of using programming to calculate complicated calculations for you. Scratch Cookbook will lead you through easy-to-follow recipes that give you everything you need to become a more advanced programmer. Scratch Cookbook will take you through the essential features of Scratch. You'll then work through simple recipes to gain an understanding of the more advanced features of Scratch. You will learn how to create animations using Scratch. Sensory board integration (getting input from the outside environment) will also be covered, along with using Scratch to solve complicated and tedious calculations for you. You'll also learn how to work through the exciting process of project remixing where you build on the work of others. Scratch Cookbook will give you everything you need to get started with building your own programs in Scratch that involve sounds, animations, and user interaction.
Table of Contents (17 chapters)
Scratch Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Getting values from the sensor board


This recipe will get us ready to do all of the fun things a PicoBoard can do. We'll start off with the basics of getting some data from the sensor board.

Getting ready

Open up a new Scratch file to use. This recipe will strictly focus on storing the data from a sensor as a variable, so will be relatively short in length.

How to do it...

Follow the steps:

  1. Create a new variable called Slider Value.

  2. Drag over a block (remember, this is in the Control category in Scratch 1.4, but in the Events category in version 2.0).
  3. Drop a block underneath the block from step 2. Note that in the older version of Scratch this is in the Variables category, but this category was renamed Data in version 2.0.
  4. Now we will use one of our new blocks from Sensing. Drop the block as shown in the following screenshot:
  5. You should now have the code shown in the following screenshot in your script area. You can now use the variable as you would for any other variable in Scratch:

How...