Pointing Device + (Wireless Mouse Mod) - I found an interesting thing about the mouse from the Internet. That is when you flip the light sensing mouse upside down and use a cloth to replace the mouse pad, the cursor can still move smoothly. So I built a device using a wireless mouse module, putting into a round corner
shell and putting cloth on it. Modifying the left mouse click button into a big press button, thus we can press the mouse button by squishing the shell of this device.