Report Light Sensor Readings

/* Use the serial monitor to 'print' the values that the light sensor reports */ void setup() { pinMode(A2,INPUT); //light sensor Serial.begin(9600); //set up the serial monitor } void loop() { Serial.println(analogRead(A2)); //show the value of the analogRead the light sensor the serial monitor } // (c) 2024 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense

Walkthrough Video

Watch the video for a line-by-line explanation of how the example program works. Then you'll be ready to make some changes of your own!

Challenges

Can you complete the challenges? Change the code in your code editor above. Upload your code to see the effect when you're finished. Complete a challenge? Check it off the list!

Add a serial.print(“ “); function in the void loop above the serial.println(); function and create a text label for your light reading. Remember the serial.print(); function must be after the opening curly brace of void loop. Your new line of code would look something like:
serial.print("Reading: ");
serial.println(analogRead(A2));

Add a delay inside the void loop to slow down the speed at which the light readings are taken.

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