Arduino Micro as a game controller. Confused about how to use the Xinput library to make this code

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1

Okay, noob here. Sorry for how dumb my questions will sound. I've got a simple task, I'm pretty sure. Basically just want to get Steam to recognize my HX711 load cell sensor / Arduino micro as a game controller / joystick input. I'm going to use it as a brake pedal for my racing sim.

Code:

#include "Joystick.h" //https://github.com/MHeironimus/ArduinoJoystickLibrary
#include "HX711.h" //https://github.com/bogde/HX711

#define DOUT  3
#define CLK  2
HX711 scale;
float calibration_factor = -300; //this controls how sensitive the pedal is

Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID, 
  JOYSTICK_TYPE_JOYSTICK, 0, 0,
  false, false, false, false, false, false,
  false, false, false, true, false);

int brake = 0;
int lastBrakeValue = 0;

void setup() {
  //Serial.begin(9600);

  scale.begin(DOUT, CLK);
  scale.set_scale();
  scale.tare(); //Reset the scale to 0
  long zero_factor = scale.read_average(); //Get a baseline reading
  scale.set_scale(calibration_factor);
  Joystick.setBrakeRange(0, 1023);
  Joystick.begin();
}

void loop() {
  int brake = scale.get_units();
  //Serial.print(String(brake) + " >> ");
  if(brake > 1023){
    brake = 1023;
  }else if(brake < 10){
    brake = 0;
  }
  //Serial.println(brake);
  if (lastBrakeValue != brake) {
     Joystick.setBrake(brake);
     lastBrakeValue = brake;
  }
  delay(1);
}

But, from what I'm reading... it sounds like I'm going to have to use the xinput library to make this work, at least if I want Steam to handle the controller inputs for my game.

There's a wonderful guide here on using xinput: How to Emulate an Xbox Controller with Arduino (XInput) - Parts Not Included

But I'm dumb. What aspects of xinput beyond "xinput.begin();" do I need to include with the code from my first link?

In my mind, I don't really need any of the xinput functions, I'm mostly just using HX711 functions and all I need from xinput is for Steam / Windows to recognize it as a game controller instead of emulating actual buttons etc.

Thank you to any kind soul that can help my tiny brain comprehend what I need to do hah.

2

This probably will not be your solution, but you might be interested in this topic...

3

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