3_8 Turn Knob Digital Motor Switch

Twist the Knob to Buzz the Motor

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.

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Monitor Upload Your Code!

//Use the turn knob to turn on and off the motor void setup(){ pinMode(3,OUTPUT); //Motor pinMode(A0,INPUT); //Turn Knob } void loop(){ if(digitalRead(A0)==HIGH){ //If the turn knob reading is HIGH (knob turned more than halfway on) digitalWrite(3,HIGH); //turn on the motor } else{ digitalWrite(3,LOW); //otherwise, turn off the motor } } // (c) 2023 Let's Start Coding. License: www.letsstartcoding.com/bsdlicense

 

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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 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!

Combine this project with the last one so that when the motor turns on, at least one of the LEDs lights up.

Reverse the 'if' statement so the motor is on when turned the opposite way of the example code.