Mouse replacement for people with brain injury or disability

Mouse replacement for people with a nervous or brain dysfunction which prevents them from using a regular computer mouse. In this case a child was not able to use a regular mouse, because she was not able to click the mouse without having a tremor. The joystick is pretty easy to make, or to have made by a person with minor elektronics knowledge. Soldering is also required. 

The dust cap should be printed in a very flexible material (TPU) or may be omitted.

Additional parts needed:

• Arduino pro micro without headers
• MPU-6050 Accelerometer and Gyroscope 3-Axis Module 3.3V-5V
• 3 non latching buttons type AB6Y-M-(colour)
• several different colours of thin insulated stranded wire
• a micro USB data cable
• a tap M4
• a tap M6
• a sockethead screw M6x30
• two sockethead screws M5x40 
• two nuts M5
• two setscrews M4 with a flat point and internal hexagon
• one strong printbed spring about 30mm long OD 8mm

Instructible for the assembly and code:

https://www.instructables.com/Mouse-for-People-With-Brain-or-Nervous-Diability/

I want to mention 'Kikihobbyrepair'. I have worked further from his idea ‘space rat’ which you can find on this link: https://youtu.be/68EapQbDBOc

I hope i can help some people with this design.

Davy