SparkFun Qwiic Joystick
The SparkFun Qwiic Joystick combines the convenience of the Qwiic connection system and an analog joystick that feels reminiscent of the thumbstick from a PlayStation 2 controller and for that reason it’s become a favorite of ours. The only thing that could make it better is a “smart” version, so SparkFun have made one. With the pre-installed firmware, the ATtiny85 acts as an intermediary (microcontroller) for the analog and digital inputs from the joystick. This allows the Qwiic Joystick to report its position over I2C. Utilizing the handy Qwiic system, no soldering is required to connect it to the rest of your system.
The joystick is similar to the analog joysticks on PS2 (PlayStation 2) controllers. Directional movements are simply measured with two 10 kΩ potentiometers, connected with a gimbal mechanism that separates the horizontal and vertical movements. This joystick also has a select button that is actuated when the joystick is pressed down. The SparkFun Qwiic Joystick’s I2C address is also software selectable so you can have plenty of them to added the same bus without any risk of collision!
