blue book examples

java/examples/Books/Processing Handbook/Extensions/Electronics/_02A/_02A.pde

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+// Code to read an analog value and write it to the serial port
+int val;
+int inputPin = 0; // Set the input to analog in pin 0
+
+void setup() {
+  Serial.begin(9600); // Start serial communication at 9600 bps
+}
+
+void loop() {
+  val = analogRead(inputPin) / 4; // Read analog input pin, put in range 0 to 255
+  Serial.print(val, BYTE); // Send the value
+  delay(100); // Wait 100ms for next reading
+}