// https://wokwi.com/projects/361085264872987649
// https://forum.arduino.cc/t/using-a-pot-to-set-a-number-between-1-and-3/1110731

void setup() {
  Serial.begin(115200);
  Serial.println("map function\n");
}

void loop() {
  int a2 = analogRead(A2);
  int m2 = map(a2, 0, 1023, 1, 3);

  Serial.print(a2); Serial.print(" in, ");
  Serial.print(m2); Serial.print(" out ");
  Serial.println();

  delay(333);
}