first commit

photoresistor1/photoresistor1.ino

@@ -0,0 +1,51 @@
+/*
+Basic Analogue Input Control - PhotoResistor Input
+This example reads an analogue value from analogue in pin 1 and then compares this to a set point.
+If the set point is threshold is crossed, the LED on digital pin 7 is turned on/off.
+Author: David M. Auld
+Date: 9th October 2009
+*/
+int photoIn = A0;       // photoresistor on Analogue Pin 1
+int ledOut = 7;        // LED on Digital Pin 7
+int aiValue = 0;       // input value
+int setPoint = 550;    // Trigger value
+
+int val = 0;
+
+void setup()
+{
+  pinMode(ledOut, OUTPUT);  // Configure the Digital Pin Direction for the LED  
+  pinMode(8, OUTPUT);
+  pinMode(9, OUTPUT);
+  Serial.begin(9600);
+}
+void loop() {
+  val = analogRead(1);
+  Serial.print(val);
+ Serial.println(""); 
+//  int dat = (125*val)>>8 ;
+//  Serial.print("Tep : ") ; //print “Tep” means temperature
+//Serial.print(dat) ; // print the value of dat
+//Serial.println(" C"); //print “C” means degree
+  
+  aiValue = analogRead(photoIn);    // Read the analogue input value
+  Serial.print(aiValue);
+  
+  Serial.print("\n");
+  
+  if (aiValue < setPoint)
+  {
+    digitalWrite(ledOut, HIGH);      // It has got dark, turn the LED on.
+    digitalWrite(8, LOW);      // It has got dark, turn the LED on.
+    //digitalWrite(9, HIGH);      // It has got dark, turn the LED on.
+  }
+  else
+  {
+    digitalWrite(ledOut, LOW);       // It is light again, turn the LED off.
+    digitalWrite(8, HIGH);      // It has got dark, turn the LED on.
+    //digitalWrite(9, LOW);   
+  }             
+  
+  delay(1000);
+}
+