build/shared/dist/examples/Analog/AnalogInOutSerial/AnalogInOutSerial.pde

@@ -0,0 +1,50 @@
+/*
+  Analog input, analog output, serial output
+ 
+ Reads an analog input pin, maps the result to a range from 0 to 255
+ and uses the result to set the pulsewidth modulation (PWM) of an output pin.
+ Also prints the results to the serial monitor.
+ 
+ The circuit:
+ * potentiometer connected to analog pin 0.
+   Center pin of the potentiometer goes to the analog pin.
+   side pins of the potentiometer go to +5V and ground
+ * LED connected from digital pin 9 to ground
+ 
+ created 29 Dec. 2008
+ by Tom Igoe
+ 
+ */
+
+// These constants won't change.  They're used to give names
+// to the pins used:
+const int analogInPin = 0;  // Analog input pin that the potentiometer is attached to
+const int analogOutPin = 9; // Analog output pin that the LED is attached to
+
+int sensorValue = 0;        // value read from the pot
+int outputValue = 0;        // value output to the PWM (analog out)
+
+void setup() {
+  // initialize serial communications at 9600 bps:
+  Serial.begin(9600); 
+}
+
+void loop() {
+  // read the analog in value:
+  sensorValue = analogRead(analogInPin);            
+  // map it to the range of the analog out:
+  outputValue = map(sensorValue, 0, 1023, 0, 255);  
+  // change the analog out value:
+  analogWrite(analogOutPin, outputValue);           
+
+  // print the results to the serial monitor:
+  Serial.print("sensor = " );                       
+  Serial.print(sensorValue);      
+  Serial.print("\t output = ");      
+  Serial.println(outputValue);   
+
+  // wait 10 milliseconds before the next loop
+  // for the analog-to-digital converter to settle
+  // after the last reading:
+  delay(10);                     
+}