Thumb Joystick Module Dual Axis Sensor Game Controller Sensor Joystick Breakout Module Compatible with Arduino PS2 Raspberry Pi (10)

I purchased these joysticks for a project. I am using them to replace basic potentiometers from a remote control car so it uses joysticks instead of a trigger and wheel. My only complaint is that the resolution with these potentiometers is very low. They do have some modulation but the dead zone is large, very touchy, and almost seem like on and off. With very little input, the output is a lot. But what can you expect from cheap modules. I will probably try out some more expensive sticks meant for game console controllers to see if they have better resolution

The middle accuracy is off, i.e instead of 512 its 507 or other values depending on which device you pick! I don't see a way on device itself to calibrate for this. You have to adjust your code for each individual device.Also the switch won't work unless you populate the R1 with some +25K resistor. Is this expected? It seems the switch is floating and not correctly wired.

The switch on these are wired to the ground plane instead of 5V. No signal will be sent to your micro controller because you are essentially connecting ground to ground. The only way to fix it is to cut into the board separating the switch from the ground plane and solder a wire to the switch to 5v.

Tested 5 joystick modules consecutively. Two critical issues found for all of them:(1) X-values jump to maximum values when pointing joystick towards bottom and top, so X axis is non-linear.(2) The operating range is only near within 10 degrees of the center so you will have very jumpy feedback when performing anything.Would not recommend at all.

One of the three boards that I have checked had the connector not completely soldered.As other reviewer noted the range is about half of the travel.