Read Extra1 (Traction Loss) via Arduino (USB)

Hi All,

Am trying to do a bit of experimentation with Traction Loss (Extra 1 Channel) With Assetto Crosa.

Right now i'm just trying to get the raw data values for Extra 1 into my processing code on Arduino Nano.

I have Sim Tools 1.3 with AC Plug-in. I've mapped Axis 1 to Extra 1 in Axis Assignments.



With AC Running I can See Extra 1 in the SimTools Tuning Center is generating a value of approximately between -20 to +20 however it has 13 decimal places !!!!


eg: 20.2188758850098 to -20.2188758850098

Is there a way within Sim Tools to format the data to an 0 decimal places ?
i don't need the decimal places ?

I've got my Interface setup as follows ....



My Arduino code is working .. i have a second serial (software) port set up on the Arduino with a debug console running on a small linux PC .... if i open the serial (USB) monitor in the IDE and manually send data to it it processes the string correctly.

Some examples of manually sent data ....

TL5Z = a value of 5
TL-11Z = a value of -11
TL19Z = a value of 19

However if I close the serial (USB) monitor and allow the Arduino to receive data from Sim Tools all it ever sends is a value of 127

Sent string = TL127Z

No matter what i do it seems that the Axis 1 value never equals the Extra 1 value .. its always 127 ????

I will post my full Arduino code as a separate post following this one since no one respomded to my last ple for help with this issue ....

This is my first experience with Game Engine .... so be gentle with me if I've missed something obvious.

Cheers
Jay

This is my Arduino code for processing AC Extra 1 sent as Axis 1 ... right now i'm just trying to get meaningful data ...
TL position code will go in the commented area's

Code:

  #include <SoftwareSerial.h>
   #define DEBUG 1
 
  SoftwareSerial mySerial(8, 7);

  String inputString = "";         
  String LastInputString = "";
  boolean stringComplete = false;
  boolean ActiveTL = false;
  String TL_Raw = "" ;
  int TL_Value = 0;
  int Last_TL_Value = 0;

void setup() {

   Serial.begin(38400);
   Serial.flush();

   mySerial.begin(38400);
  
   #ifdef DEBUG
      mySerial.println("Traction Loss Test System Ready ....");
      mySerial.println("");
   #endif

   inputString.reserve(50);
}

void loop(){

  if (stringComplete) {
    ProcessData();
  }

  if (TL_Value != Last_TL_Value) {
    TL_Output();
  }
 
}

void serialEvent() {
  if ( ActiveTL == false){
    while (Serial.available()) {
      char inChar = (char)Serial.read();
    inputString += inChar;
      if (inChar == 'Z') {
        stringComplete = true;
      }
     }
  }
}

void ProcessData(){

     if (inputString.substring(0,2) == "TL") {
      TL_Raw = inputString.substring(2,inputString.length()-1);

      LastInputString = inputString;
    
     if (TL_Raw.substring(0,1) == "-") {
        TL_Value = TL_Raw.substring(1,2).toInt();
        TL_Value = - TL_Value;
     }
     else {
        TL_Value = TL_Raw.substring(0,2).toInt();
     }
     
      if(TL_Value > 20) {
        TL_Value = 20;
      }

      if(TL_Value < -20) {
        TL_Value = -20;
      }
     }
    stringComplete = false;
    inputString = "";
}

void TL_Output() {

    Last_TL_Value = TL_Value;
   
      #ifdef DEBUG
        mySerial.println("");
        mySerial.print("Traction Loss String = ");
        mySerial.println(LastInputString);
      #endif
     
      if (TL_Value == 0) {
        #ifdef DEBUG
          mySerial.println("No Traction Loss ... ");
        #endif

      // Code to move Traction Loss to 0 Position here *****

      }
     
      if (TL_Value > 0) {
        #ifdef DEBUG
         mySerial.print("Right side Traction Loss = ");
         mySerial.println(TL_Value);
        #endif

      // Code to move Traction Loss to + (right) Position

      }

      if (TL_Value < 0) {
        #ifdef DEBUG
          mySerial.print("Left side Traction Loss = ");
          mySerial.println(TL_Value);
        #endif
       }

      // Code to move Traction Loss to - (left) Position

}