Welcome to Mini Microbit Handle repository

3. Flowing sand

1. Learning goals

In this lesson, we will learn to use micro:bit to realize the effect of flowing sand.

2.Code and analysis

from microbit import * 

This code is to import everything from the microbit library, and any program need to uses import this library.

Micro:bit has a dot matrix of 5*5 LEDs, and the brightness of each LED on the dot matrix can be set to a value from 0 to 9.

If the brightness of an LED is set to 0, then it goes out.

If its brightness is set to 9, then it is at the brightest level.

We can display a custom image on the micro:bit dot matrix. Based on the pattern required this time, we define four custom patterns and display this pattern.

accelerometer.current_gesture() 

According to the direction of the microbit position. Get the gesture direction of the current microbit, and return the strings "up", "down", "left", "right", "face up", "face down", etc.

Note:

1 - The capital letter/lowercase letters must be distinguished！

2 - Correct spelling!

3 - Keywords such as # need a space between the content.

4 - You can only use the Tab key (tabulation key) for indentation. 

3.Programming and downloading

3.1 You should open the Mu software, and enter the code in the edit window, , as shown in Figure .

Note! All English and symbols should be entered in English, and the last line must be a space.

3.2 As shown in Figure, you need to click the Check button to check if our code has an error. If a line appears with a cursor or an underscore, the program indicating this line is wrong.

3.3 You need to connect the micro data cable to micro:bit and the computer, then click the Flash button to download the program to micro:bit as shown in Figure 2-3.

3.4 After downloading the program, the micro:bit board will show a smile when you put it upright (dot matrix facing up).

When you shake it to show a plate of loose sand.

When the micro:bit tilts in different directions, the state of the LED on the dot matrix will change, and a plate of flowing sand will sound.