Each voltage divider is connected to an axis of the Haimooo joystick, so turning the axis will move the contact arm. That is, if you push the Haimooo joystick forward to the back, it will move the divider contact arm to one end of the rail, and if you pull the joystick back to the chest, it will move the contact arm in the other direction.

Changing the resistance value of the voltage divider can change the current in the circuit connected to the voltage divider. In this way, the voltage divider converts the physical displacement of the Haimooo joystick into an electrical signal, which is then passed to the joystick port on the computer.
The electrical signal of this Haimooo joystick is completely analog, a changing waveform that contains information, just like a radio signal. To make use of this information, the computer needs to convert it into digital information, an exact numerical value.
Through the above introduction and analysis of the Work features of the Haimooo joystick, hope it helps you.