Case 67: The Blocks Emitter
Introduction
Use Nezha 48 IN 1 Inventor's Kit and Potentiometer to make a blocks emitter that can control the firing frequency with a knob and can be loaded automatically.
Case Building
Materials Required
Rubber bands
Assembly
Parts list
The structure is built as shown in the figure:
After the construction is completed, as shown in the following figure：
Connection Diagram
Connect the Potentiometer to J1 port, and the Motor to M1 port on Nezha Breakout Board .
MakeCode Programming
Step1
Click “Advanced” in the MakeCode drawer to see more choices.
For programming the potentiometer, we need to add an extension library. Search with "PlanetX" in the dialog box to download this library.
For programming the Nezha expansion board, we need to add an expansion library. Search with "Nezha" in the dialog box to download it.
Notice: If you met a tip indicating that some codebases would be deleted due to incompatibility, you may continue as the tips say or create a new project in the menu.
Step 2
Write the program as the picture suggests
Reference
Link: https://makecode.microbit.org/_L7shxbLtVJYY
You may also download it directly:
Result
The potentiometer allows you to control the firing frequency of the blocks emitter.
