Joystick Mouse

Create your own mouse!

Beginner circuitpython project to understand the basics of programming and create human interface devices.

In this project you will:

• Gain an introduction to microcontroller development
• Understand hardware and analog vs digital signals
• Learn the programming behind how a mouse works
• Develop in any way you see fit!

Hardware

• total cost:
• RP2040 controller
• Joystick
• USB-C chord
• 3d printed case
• Enclosure
• Top

Images

• CAD model

Wiring Diagram

Code

1. libraries are imported for interfacing with other programs.
2. A library is simply more code. It is a way to hide code inside other code and allows common functions to be re-used
3. Pins and hardware are initialized
4. A button (Switch) is set up to listen for when the user presses the joystick
5. 2x analog input pins are set up to read a value. Rather than 0 or 1 for on off, this can read values in between. Like .2 or .7!
6. Loop
7. This is a fundamental concept in programming. It simply means when the logic is finished, it starts again. Creating a full circle, or loop.
8. Reads button. If the button is pressed, it sends a mouse click event, otherwise it is released.

9. Reads analog values. If the values are negative or positive, it will move the mouse that many pixels

10. github