Tilt Brightness Control

Code

The code in the editor below is ready to run! Plug Code Lab Mini in to your computer's USB port, make sure that your Code Lab Mini Sensor Trio Add-On (sold separately) is attached, 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.

If you haven't set up your Code Lab Mini Sensor Trio Add-On yet, visit Chapter 0 to watch a video showing you how to do that.

// Tilt Brightness Control: Tilt Code Lab Mini + Sensor Trio Add-On right to increase the brightness of an LED, and left to decrease it int brightness = 0; //variable named brightness to hold the brightness value of the LED void setup() { pinMode(10,OUTPUT); //LED pinMode(A4,INPUT_PULLUP);//Left Tilt Sensor pinMode(A5,INPUT_PULLUP);//Right Tilt Sensor } void loop() { if(digitalRead(A5)==LOW){ //If Code Lab Mini is tilted right... brightness++; //increase the value of brightness by 1 delay(10); //Pause for 10 milliseconds to control the speed of the change if(brightness >= 255){ //if brightness reaches the maximum analogWrite value of 256... brightness = 255; //keep the brightness at the maximum value so it doesn't overrun } } else if(digitalRead(A4)==LOW){ //If Code Lab Mini is tilted left... brightness--; //decrease the brightness variable by 1 delay(10); //Pause for 30 milliseconds to control the speed of the change if(brightness <= 0){ //if brightness goes below 0... brightness = 0; //reset brightness to 0 } } analogWrite(10,brightness); //use the variable as the analogWrite brightness (0 to 256) of LED 10 } // (c) 2023 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

Coming Soon!

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