Using Photoresistors with an Arduino

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Implement photoresistor circuit 5V analog input 2 photoresistor 10kW

Enter and run the following sketch int val = 0; // variable to store value read at analog pin 2 void setup() { Serial.begin(9600); // set up to print out text to monitor } void loop() { val = analogRead(2); // read analog input pin 2 Serial.println(val); // print value to serial monitor What happens to the values on your serial monitor when you put your hand over the photoresistor?

Implement photoresistor and LED circuits 220Ω digital pin 11 5V analog input 2 photoresistor 10kW

Enter and run the following sketch int val = 0; // variable to store value read at analog pin 2 void setup() { Serial.begin(9600); // set up to print out text to monitor pinMode(11,OUTPUT); // declare pin 11 as an output } void loop() { val = analogRead(2); // read analog input pin 2 Serial.println(val); // print value to serial monitor if(val < 600) // if statement used to control LED { digitalWrite(11,HIGH); delay(100); digitalWrite(11,LOW); delay(100); How does the photoresistor control the LED?