esp-idf-ssd1306/MouseMoveDemo

MouseMoveDemo for SSD1306

Demo of moving a circle using the mouse.
The circle moves when you move the mouse.
I used this as a reference.

Hardware requirements

• ESP32S2/S3
  These have USB-HOST functionality.

• USB Connector
  I used this:
  

• USB mouse
  2-button or 3-button usb mouse.
  Button 3 is not used in this project.

USB wiring

To stabilize the power supply, I placed a 100uF electrolytic capacitor between 5V and GND.

ESP32-S2/S3 BOARD           USB CONNECTOR
                            +--+
    [  5V   ]  +--------->  | || VCC
    [GPIO 19]  |--------->  | || D-
    [GPIO 20]  |--------->  | || D+
    [  GND  ]  |--------+>  | || GND
               |        |   +--+
               +---||---+
                  100uF

How to Use

The circle moves when you move the mouse.

Invert with left mouse click.

Right click the mouse to go back.

USB hot socket

There are times when it works correctly and times when it doesn't.
It works more stably if you connect before starting the firmware.
When it works correctly, a log like this will be displayed.

I (1166) usb_hid: hid_host_device_callback
I (1166) usb_hid: HID Device, protocol 'MOUSE' CONNECTED

Using USB-HUB

I tried it, but it doesn't work properly via USB-HUB.

Transfer failed error

For some reason, the following error may occur in rare cases.
This error occurs inside the usb_host_hid component.
It is unclear whether it is a component bug or an effect of electrical noise.
Some kind of stabilization circuitry may be required.
It may come back to life if you unplugging the mouse and plugging it again.
I would like to hear the opinion of someone who is familiar with USB electrical circuits.

E (12287696) hid-host: Transfer failed, status 1
E (12287696) usb_hid: HID Device, protocol 'MOUSE' TRANSFER_ERROR
E (15953516) USBH: Device 1 gone