/* Switch statement Demonstrates the use of a switch statement. The switch statement allows you to choose from among a set of discrete values of a variable. It's like a series of if statements. To see this sketch in action, but the board and sensor in a well-lit room, open the serial monitor, and and move your hand gradually down over the sensor. The circuit: * photoresistor from analog in 0 to +5V * 10K resistor from analog in 0 to ground created 1 Jul 2009 by Tom Igoe Ported to the Maple 27 May 2010 by Bryan Newbold http://leaflabs.com/docs/lang/cpp/switchcase.html */ // These constants won't change: const int sensorMin = 0; // sensor minimum, discovered through experiment const int sensorMax = 600; // sensor maximum, discovered through experiment void setup() { Serial.begin(115200); // Ignored by Maple. But needed by boards using hardware serial via a USB to Serial adaptor pinMode(0, INPUT_ANALOG); } void loop() { // Read the sensor: int sensorReading = analogRead(0); // Map the sensor range to a range of four options: int range = map(sensorReading, sensorMin, sensorMax, 0, 3); // Do something different depending on the range value: switch (range) { case 0: // your hand is on the sensor Serial.println("dark"); break; case 1: // your hand is close to the sensor Serial.println("dim"); break; case 2: // your hand is a few inches from the sensor Serial.println("medium"); break; case 3: // your hand is nowhere near the sensor Serial.println("bright"); break; } }