4_11 Turn Knob Serial Print

Turn Knob Serial Print

Code

The code in the editor below is ready to run! Plug Code Lab Mini in to your computer's USB port with the cable and hit 'Upload Your Code!' to see what it does. Change something in the code, like a delay or pin number. Try to add something new to the program - it's yours to tinker with! You can always press the 'Restore' button to return the code to the working example.

Restore 12 14 18 24 30

Monitor Upload Your Code!

/* Use the serial monitor to see the values that a turn knob sends in to your code Remember to hit the 'Monitor' button next to the dropdown menu on the code editor to open the serial monitor */ void setup() { pinMode(A0,INPUT); //turn knob Serial.begin(9600); //set the serial port up to receive data } void loop() { Serial.println(analogRead(A0)); //"Print" the value from the turn knob on the serial monitor } // (c) 2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense

 

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Success!

Compile errors:

Serial port monitor: Input: Send Close

 

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 challenge? 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 just above the Serial.println(); function in the loop so that you have a label that says “Knob Reading: “ before the number value from the sensor is shown.

Add an ‘if’ statement so that if the knob reading goes below 500, a message like “Low Reading!” shows on the serial monitor.