const int vref = D8; // ref logic voltage for h-bridges
bool set_vref = true;
// define coil objects as structs with input pins
struct Coil {
  int input1;
  int input2;
};
// create coil objects
Coil left_coil = {D9, D10}; //xiao pins
Coil right_coil = {D6, D5};

// h-bridge driving helpers
void setCoilPositive(Coil coil) {
  digitalWrite(coil.input1, HIGH);
  digitalWrite(coil.input2, LOW);
}

void setCoilNegative(Coil coil) {
  digitalWrite(coil.input1, LOW);
  digitalWrite(coil.input2, HIGH);
}

void shutOff(Coil coil){
  digitalWrite(coil.input1, LOW);
  digitalWrite(coil.input2, LOW);
}
  
void dumpState(Coil coil1, Coil coil2){
  Serial.println("Coil1:");
  Serial.println(analogRead(coil1.input1));
  Serial.println(analogRead(coil1.input2));
  Serial.println("Coil2:");
  Serial.println(analogRead(coil2.input1));
  Serial.println(analogRead(coil2.input2));
}


void setup() {
  // not sure if this is necessary since it works anyway
  pinMode(left_coil.input1, OUTPUT);
  pinMode(left_coil.input2, OUTPUT);
  pinMode(right_coil.input1, OUTPUT);
  pinMode(right_coil.input2, OUTPUT);
  pinMode(vref, OUTPUT);

  Serial.begin(9600);
  Serial.print("help!");
  delay(1000);
  //set some default values
 
}

void loop() {
   // set reference voltage
   digitalWrite(vref, HIGH);
 
  //run sequence one time
  setCoilNegative(left_coil);
  setCoilPositive(right_coil);
//  
//  //  dumpState(left_coil, right_coil);
//  delay(2000);
//  setCoilPositive(left_coil);
//  setCoilNegative(right_coil);
//  
//  //  dumpState(left_coil, right_coil);
//  delay(2000);
//  shutOff(left_coil, right_coil);
//  
//  while (true){
//    // do nothing
//  }

  // h-bridge test
}