Create LED Control with LDR.ino

Author: osamaelkassaby

LED Control with LDR.ino

@@ -0,0 +1,30 @@
+const int ledPin = 13;   //the number of the LED pin
+const int ldrPin = A0;  //the number of the LDR pin
+
+
+void setup() {
+
+  Serial.begin(9600);
+  pinMode(ledPin, OUTPUT);  //initialize the LED pin as an output
+  pinMode(ldrPin, INPUT);   //initialize the LDR pin as an input
+}
+
+void loop() {
+
+  int ldrStatus = analogRead(ldrPin);   //read the status of the LDR value
+
+  //check if the LDR status is <= 300
+  //if it is, the LED is HIGH
+
+   if (ldrStatus <=300) {
+
+    digitalWrite(ledPin, HIGH);               //turn LED on
+    Serial.println("LDR is DARK, LED is ON");
+    
+   }
+  else {
+
+    digitalWrite(ledPin, LOW);          //turn LED off
+    Serial.println("---------------");
+  }
+}