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--- arduino:arduino_crash_course:light_meter [2012/11/06 01:19] – created mithat
+++ arduino:arduino_crash_course:light_meter [2012/11/06 01:32] (current) – mithat
@@ Line 3: / Line 3: @@
 Using serial communication and a CdS cell as a primitive light meter.
+<file c LightMeter.ino>
+/*
+ LightMeter
+ Report the light intensity at an arbitrary scale to the serial port.
+ */
+const int inputPin = A0;  // use analog 0 (A0) input pin
+int lightLevel = 0;       // used to store the input value
+void setup() {
+  Serial.begin(9600);  // initialize serial communication at 9600 bits/second
+}
+void loop() {
+  lightLevel = analogRead(inputPin);  // get a reading
+  Serial.println(lightLevel);         // print out reading
+  delay(500);                         // delay between reads
+}
+</file>