// https://wokwi.com/projects/410780548329232385
// for https://forum.arduino.cc/t/dc-motor-direction-speed-control-with-joystick/1307821
// and https://www.youtube.com/watch?v=wSjZIHMDczk

// Hookups modified from 
// https://wokwi.com/projects/410601389043609601
// dc motor sim with encoders (taps on stepper quadrature signals)
// built from:
// https://wokwi.com/projects/410302035690579969
// ESC steppers simulating DC motor with L298N
//
// This project has two custom chips:
//
// L298N motor driver translates digital pins+PWM into 
//  PWM +/- signals for a DC motor./
//
// A custom chip to tranlate the PWM signals into quadrature
// signals for a stepper motor.  Essentially a Stepper ESC.
// 
// L298N Wokwi custom chip with LEDs-simulating motors
// and custom ESCs for PWM->Stepper control
// With potentiometers to control directions
// Also with @Dlloyd's Chip Scopes from https://github.com/Dlloydev/Wokwi-Chip-Scope
// to see the inputs abd outputs of the driver board
//
// Modified from
// https://wokwi.com/projects/351764383409373773 by Carlos Arino


int speedP = 5;
int dir1 = 4;
int dir2 = 3;
int mSpeed;
int rSpeed;
int xP = A0;
int xVal;
void setup() {
  // put your setup code here, to run once:
  pinMode(speedP, OUTPUT);
  pinMode(dir1, OUTPUT);
  pinMode(dir2, OUTPUT);
  pinMode(xP, INPUT);
  Serial.begin(9600);
}
void loop()  {
  // put your main code here, to run repeatedly:
  xVal = analogRead(xP);
  mSpeed = map(xVal, 0, 1023, -255, 255);
  if (mSpeed<-255){
    mSpeed = -255;
  }
  if (mSpeed>255){
    mSpeed = 255;
  }
  rSpeed = abs(mSpeed);
  if (mSpeed<0){
  digitalWrite(dir1, LOW);
  digitalWrite(dir2, HIGH);
  }
  if (mSpeed>=0) {
  digitalWrite(dir1, HIGH);
  digitalWrite(dir2, LOW);    
  }
  analogWrite(speedP, rSpeed);
  Serial.print("x: ");
  Serial.print(xVal);
  Serial.print(", in range: ");
  Serial.print(mSpeed);
  Serial.print(", Abs val: ");
  Serial.println(rSpeed);
}