Lesson 6: Activity 3 (Automated Light (LDR))

Activity 3
Automated Light (LDR)

LDR Circuit

Materials Needed:

• Laptop
• USB cable
• Arduino Board
• 1 x LED
• 1 x 330Ω
• 1 x LDR
• 1 x 10kΩ
• 6 Jumper Wires

Codes: 

int analogVal;

const int ldrPin = ?;

const int led = 6;

void setup()

{

Serial.begin(9600);

pinMode(led, ?);

}

void loop()

{

analogVal = analogRead(ldrPin);

Serial.println(analogVal);

if (analogVal>800)

{

digitalWrite(led, ?);

delay (500);

}

else

{

digitalWrite(led, LOW);

}

delay(200);

}