Analog Joystick

This example shows how to connect a joystick to your St Nucleo. This could be used for games or perhaps navigating through a menu for example Here is a picture of the joystick I am using, this is commonly found for sale on many sites. Usually part of a sensor kit, links at the bottom

joystick

Here is the pinout and where I connected it to on my ST Nucleo board, the pinout is underneath

Here is the STM32 nucleo pinout

nucleo pins

Code

Nothing fancy in this example, we will simply output the values from the X and Y pins. Typically you would read these values and them perform actions based on the various positions such as left, right and up and down. A later update will show this.

This requires the https://developer.mbed.org/users/happinesstaker/notebook/sparkfun-analog-joystick/ to be imported into your project

[codesyntax lang=”cpp”]

#include "mbed.h"
#include "SparkfunAnalogJoystick.h"

 
SparkfunAnalogJoystick joysttick(A0, A1, D7);

 
// Test program for the library
// It would output all data about the joystick
// It would also draw a compass to indicate the joystick status on the LCD display
 
int main() {


    while(1) {
        printf("X-Axis: %f\n\r", joysttick.xAxis());
        printf("Y-Axis: %f\n\r", joysttick.yAxis());
        printf("Button: %d\n\r\n", joysttick.button());
   
        wait(1);
    }
}

[/codesyntax]
Links
Arduino joystick at Amazon UK

Arduino joystick at Amazon