Water bottle alert

步驟1：製作

它是什麼？

Turn your BBC micro:bit into a water bottle alert, so you can tell if someone else has drunk from it. You will learn how to use the micro:bit's LED display and accelerometer.

這兩支影片為您示範了製作內容和編碼方法：

運作方式

• The micro:bit shows a heart on its LED display when your water bottle is upright.
• The LED display shows a warning cross when a tilt is detected by the micro:bit’s accelerometer. The cross stays there until you reset the program by pressing the reset button on the back of the micro:bit or by disconnecting and reconnecting the battery.
• An accelerometer measures forces in three dimensions, including gravity, so your projects can tell which way up your micro:bit is.

你需要的東西

• micro:bit (或,MakeCode simulator)
• MakeCode編輯器
• battery pack

步驟2：編碼

1# Imports go at the top
2from microbit import *
3
4display.show(Image.HEART)
5sleep(400)
6
7while True:
8    if accelerometer.was_gesture('right'):
9        display.show(Image.NO)
10

步驟3：進階

• Find a way to reset the program without using the micro:bit’s reset button, for example by pressing button A or B to show a heart icon.
• Add an audible alarm using blocks from the music section of the MakeCode editor.