This can be especially difficult in the case of quadriplegia sufferers, the loss of control ... a joystick module , and a length of tubing connects the mouthpiece to a pressure sensor. An Arduino ...

The front has a prominent red PSP joystick for mouse input and a custom keyboard. The keyboard is especially interesting. On the inside it’s a custom PCB with tactile switches and a ATmega32U4 r ...

The following is excerpted from the book Arduino Project Handbook ... want something more temporary. Now you can control the laser using the joystick. The servos will clip into the tilt-and ...