simple motion sensor

to many new terms.
please be lenient.

changed

while (millis() < 5000) {
    sensorValue = analogRead(sensorPin1);
    sensorValue = analogRead(sensorPin2);
    sensorValue = analogRead(sensorPin3);



    // record the maximum sensor value
    if (sensorValue > sensorMax) {
      sensorMax = sensorValue;
    }

    // record the minimum sensor value
    if (sensorValue < sensorMin) {
      sensorMin = sensorValue;
    }
  }