arduino light test

arduino/licht-test/sketch_sep6a/sketch_sep6a.ino

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+/*
+ * Created by ArduinoGetStarted.com
+ *
+ * This example code is in the public domain
+ *
+ * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-light-sensor
+ */
+#define LDR 5
+void setup() {
+  // initialize serial communication at 9600 bits per second:
+  Serial.begin(9600);
+}
+
+void loop() {
+  // reads the input on analog pin A0 (value between 0 and 1023)
+  int analogValue = analogRead(LDR);
+
+  Serial.println("Analog reading: ");
+  Serial.println(analogValue);  // the raw analog reading
+}