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Step 8 Click the Code button to open the code editor.

Step 9 Click on the EDIT MODE dropdown button and
select the Blocks option.
Step 10 Click on the Create variable button in the
Variables section and name it Nightsensor.

Step 11 Drag and place the set Nightsensor to
block from the Variables section into the
editor window.

Step 12 Drag and place the read digital pin block from
the Input section inside the ‘set Nightsensor to’ block and set it to pin 7.
Step 13 Drag and place the print to serial monitor block from the Output section and set
Nightsensor inside it to print the sensor’s value to the serial monitor.

Step 14 Drag and place the if then else block from the Control section. Place the comparison
block from the Math section and set it to =. Compare Nightsensor with 0.

Step 15 Inside the if block, drag and place the set pin 8 to HIGH block from the Output section
to turn pin 8 on if Nightsensor equals 0.
Step 16 Inside the else block, drag and place the set pin 8 to LOW block from the Output
section to turn pin 8 off if Nightsensor does not equal 0.

Step 17 Click on the Start Simulation button to see the Smart Lamp turn ON or OFF based on
the Nightsensor’s value.
Text based programming:

Step 18 Click on the EDIT MODE dropdown button and select the Text option. The code you
created will be displayed here.

QR QUEST

Visit the given link
to learn how to create an RGB
LED circuit:
https://www.youtube.com/
watch?v=YqHkULDmmGU
Answer the given questions:
1. Write the key components
needed to design an RGB LED
circuit.
2. What role does the resistor
play in the LED circuit?

Here’s an explanation of the code you created:

int Nightsensor = 0: This line declares a variable named Nightsensor to store the state of the
light sensor. It is initially set to 0.

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Premium Edition-VII