Micro:bit piano board Basic Course 2.2 Dot_matrix_display
In this lesson we mainly learn how to use the music touch return and music button blocks of Yahboom piano expansion package.
By programming, we will make the micro:bit dot matrix displays different patterns by touching the seven white keys on the piano expansion board.
Mode 1 online programming: First, we need to connect the micro:bit to the computer by USB cable. The computer will pop up a USB flash drive and click on the URL in the USB flash drive: http://microbit.org/ to enter the programming interface. Add the Yahboom package https://github.com/lzty634158/YB_Piano to program.
Mode 2 offline programming: We need to open the offline programming software. After the installation is complete, enter the programming interface, click【New Project】, add Yahboom package:
https://github.com/lzty634158/YB_Piano, you can program.
3.Looking for blocks
The following is the location of the building blocks required for this programming.
How to create a new variable：
4.Combine building block
The summary program is shown below:
5. Experimental phenomena
After the program is successfully downloaded, when I touch the C, D, E, F, G, A, B keys on the piano expansion board, the micro:bit dot matrix will display different patterns, as shown below.
（If you want to display other patterns with other keys, you can modify the program yourself.）
The code of the experiment: 2.Dot_matrix_display.rar