The document outlines the basics of accelerometers in Android development, their applications for detecting motion, orientation, and step counting. It provides examples of simple accelerometer applications, including functionalities like real-time acceleration printing, a shaking detector, and a interactive game called 'throw the phone' which calculates driving distance based on acceleration. Additionally, it highlights key learnings related to using accelerometers and text-to-speech technology.

1. IT I Android Development
World Friends IT
R E G E N T × U N I S T
Accelerometer
Instructor: Dongmin Kim (rocky112358@unist.ac.kr)

2. 1 What is Accelerometer?

3. 2 Applications of Accelerometer
Mostly used to detect shaking motion
This is ‘Sensor Box for Android’ application
Available on Google Play

4. 2 Applications of Accelerometer
or find orientation of phone
by finding direction of acceleration of gravity
Portrait
Landscape

5. 2 Applications of Accelerometer
or counting steps(passometer)

6. 3 Example: Simple Accelerometer
Summary of Simple Accelerometer
Functions of Simple Accelerometer
- Print current X, Y, Z direction acceleration real time
- Print green square when shaking is detected

7. 3 Example: Simple Accelerometer
Screen design of Simple Accelerometer
Width: Fill parent

8. 3 Example: Simple Accelerometer
Block of Simple Accelerometer

9. 3 Example: Simple Accelerometer
Screen of Simple Accelerometer

10. 3 Example: Throw the Phone
Functions of Throw the Phone
- When ‘START’ button is tapped, countdown “Three, Two, One”.
- Throw (but don’t throw)
- Calculate the driving distance according to the acceleration sensor
value.
- When ‘RESET’ button is tapped, store current record and reset.
- DO NOT THROW YOUR PHONE IN REALITY
- BE CAREFUL
Summary of Throw the Phone

11. 3 Example: Throw the Phone
Screen of Throw the Phone
Sensitivity: Strong
Country: USA
Language: en

12. 3 Example: Throw the Phone
Blocks of Throw the Phone

13. 3 Example: Throw the Phone
Blocks of Throw the Phone

14. 3 Example: Throw the Phone
Blocks of Throw the Phone

15. 3 Example: Throw the Phone
Blocks of Throw the Phone

16. 3 Example: Throw the Phone
Screen of Throw the Phone

17. 4 What we learned today
- How to use accelerometer
- How to use TTS (Text To Speech)