// https://www.diyrobocars.com/2020/05/04/arduino-serial-plotter-the-missing-manual/

void setup() {
  Serial.begin(115200);
  Serial.println("var1:,var2:,var3:"); // prints labels in Arduino IDE
}
void loop() {
  // read inputs on analog pins
  int sensorValue1 = analogRead(A2);
  int sensorValue2 = analogRead(A1);
  int sensorValue3 = analogRead(A0);
  // print out the value you read:
  Serial.print(sensorValue1);
  Serial.print(",");
  Serial.print(sensorValue2);
  Serial.print(",");
  Serial.println(sensorValue3);
  delay(10);        // delay between reads for stability
}