//I am using this sketch to measure the hall effect sensor- based on the elegoo linear hall effect sketch and my PT1521 sketch
int sensorPin = D3;    // D3 is also A3 on the pinout- its an analog input pin to read the data from the sensor
int sensorValue = 0;  // sensor variable to store the value coming from the sensor
 
void setup() {
  Serial.begin(9600); // initialize serial communications
}
 
void loop() {
  pinMode(sensorPin, INPUT);
  sensorValue = analogRead(sensorPin); // read the value from the sensor
  sensorValue = map(sensorValue, 0, 4095, 4095, 0);
  Serial.println(sensorValue); // print value to Serial Monitor
  delay(100); // short delay so we can actually see the numbers
}