Welcome to Building:bit Superkit repository
4.Micro:bit handle control
Micro:bit handle control
Micro:bit handle control1. Learning objectives2. Building blocks3. Motor wiring4. Programming4.1 Add expansion package4.2 Building blocks used4.3 Add new variables4.4 Combined blocks5. Experimental phenomenon
1. Learning objectives
In this course, we mainly learn how to use MakeCode graphical programming to realize the microbit handle to control the Lifting platform.
2. Building blocks
For the building blocks steps, please refer to the installation drawings of [Assembly Course]--[Lifting platform] in the materials or the building blocks installation book.
3. Motor wiring
Insert the building blocks servo wiring into the S1 interface of the Super:bit expansion board, and the orange servo wiring into the yellow pin of S1.
As shown in the figure below:
! Notes:
When taking a course related to building block servos for the first time, we need to remove the gears on the servos and upload the program of this course to micro:bit; then turn on the power switch of the Super:bit expansion board and wait for the building block servos to turn to the initial position; then, we can turn off the power, adjust the lifting platform to the lowest position, and then install the servo gear. (If you have used the lifting platform and servo-related programs before, you can skip this step)
4. Programming
Method 1 Online programming:
First, connect micro:bit to the computer via a USB data cable. The computer will pop up a U disk. Click the URL in the U disk: https://makecode.microbit.org/ to enter the programming interface. Then, add the Yahboom software package to start programming.
Method 2 Offline programming:
Open the offline programming software MakeCode and enter the programming interface. Click [New] and add the Yahboom software package to start programming.
superbit kit expansion package: https://github.com/YahboomTechnology/SuperBitLibV2 handle expansion package: https://github.com/YahboomTechnology/GHBitLib
4.1 Add expansion package
4.2 Building blocks used
The location of the building blocks required for this programming is shown in the figure below.
4.3 Add new variables
① Find the [Variable] option in the building block bar ---- [Set variable]
② Enter the variable name to complete the new variable.
4.4 Combined blocks
The microbit summary program on the Lifting platform is shown in the figure below
The Handle rocker control program is as follows
The Handle gravity control program is as follows
You can also directly open the microbit-handle-control-Lifting-platform.hex, microbit-Handle-rocker-control.hex, microbit-Handle-gravity-control.hex files provided in this experiment and drag them into the browser that opens the URL, and the program diagram of this project source code will be automatically opened
5. Experimental phenomenon
We need to download the Lifting platform program to the micro:bit motherboard of the Lifting platform, turn on the power switch of the Lifting platform, and we can see a smiley face pattern displayed on the micro:bit dot matrix;
Download the handle remote control program to the micro:bit motherboard of the handle, turn on the power switch of the handle, and we can see that the micro:bit dot matrix will be initialized to display a heart pattern, and then an "X" pattern will be displayed, indicating that the handle is in the default state and no data is sent.
The two will automatically pair, and then we can start remotely controlling the Lifting platform.
The handle functions are as follows.