7. case 04:Timer

7.1. Our Goal

  • Use our watch kit to create a wearable timer.

7.2. Material

  • 1 x Watch kit

7.3. Hardware Connection

Assemble our watch kit directly just like the picture below.

../../_images/vOZpBF4.jpg

7.4. Software

Microsoft Makecode

7.5. Programming

Step 1

  • When start our program, create a variable flag and set its value to 0. When button A is pressed, delay time for 5 second. When button B is pressed, set the value of variable flag to 1.

../../_images/cP4zcvV.png

Step 2

  • Create a forever loop and place an if statement under it. When the variable flag equals to 1, then activate the function.
  • Set time delay and play the built-in music nyan for once. Then set the variable flag to 0.

../../_images/lcr6uOP.png

Program

7.6. Result

  • The watch can keep time precisely and play music.

7.7. Think

7.8. FAQ

7.9. Relative Readings