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2.2 Control speed

Posted by Fiona Su on

1.Learning goals

In this lesson, we mainly learn how to control building block motor by micro:bit and Super:bit expansion board.

2.Programming method

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/SuperBit 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/SuperBit, you can program.

3.Looking for blocks

The following is the location of the building blocks required for this programming.

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4.Combine building block

The summary program is shown below:

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5.Assembly steps

Please refer to the assembly steps in the Assembly instructions folder for building blocks assembly steps.

4.About wiring:

As shown below,

Left motor connect to M1 interface of super:bit.

Right motor connect to M3 interface of super:bit.

 image.png image.png

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5. Experimental phenomena

After the program is successfully downloaded, the micro:bit dot matrix will display the smile pattern and the car will advance with different speed, speed is 0 -> 125 -> 255 -> 125. The car will keep a loop in such a state.

If you need to start over, press the reset button on the back of the micro:bit board.

 The code of the experiment: 2.Control speed.rar 

Tutorial

Yahboom Micro:bit Remote Control Building Block 5 in 1 Robot Car Kit Tutorial

Buy Yahboom Micro:bit Remote Control Building Block 5 in 1 Robot Car Kit

 

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