/*
  AnalogReadSerial
  Reads an analog input on pin, prints the result to the Serial Monitor.
  Graphical representation is available using Serial Plotter (Tools > Serial Plotter menu).

  This example code is in the public domain.
*/

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
}
// the loop routine runs over and over again forever:
 void loop() {
  int sensorValue_N = analogRead(D3);
  int sensorValue_E = analogRead(D2);
  int sensorValue_W = analogRead(D1);
  int sensorValue_S = analogRead(D0);

  sensorValue_N = map(sensorValue_N, 0, 1024, 1024, 0);
  sensorValue_E = map(sensorValue_E, 0, 1024, 1024, 0);
  sensorValue_W = map(sensorValue_W, 0, 1024, 1024, 0);
  sensorValue_S = map(sensorValue_S, 0, 1024, 1024, 0);

  // 🔁 Send just numbers
  Serial.print(sensorValue_N); Serial.print(",");
  Serial.print(sensorValue_E); Serial.print(",");
  Serial.print(sensorValue_W); Serial.print(",");
  Serial.println(sensorValue_S);  // ends with newline

  delay(500);
}