Show or Hide a Screen Message with a Button Press

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 Screen 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 Screen Add-On yet, visit Chapter 0 to watch a video showing you how to do that.

//Show or hide a message on the Code Lab Mini Screen with the press of a button #include "CLMiniScreen.h" //A code library enables new functions to be used with the screen CLMiniScreen lcd; //the library name is followed by the 'name' you give the LCD screen. Here it is 'lcd' int pressCount=0; //create an integer called pressCount to keep track of how many times a button is pressed void setup() { pinMode(4,INPUT_PULLUP); //button lcd.begin(); //.begin() 'sets up' the screen. You'll always need it when using the screen lcd.print("Hello World!"); //16 characters including spaces can fit on one line of the screen } void loop() { if(digitalRead(4)==LOW){ //if button 4 is pressed... pressCount++; //increase the variable value by 1 delay(250); //Pause for 1/4 second to give you time to release the button } if(pressCount==1){ //if the variable is equal to 1... lcd.noDisplay(); //Hide anything that is displayed on the screen } else{ //otherwise, if the variable is anything but 1... lcd.display(); //Display the hidden message on the screen pressCount=0; //Reset the variable to 0 } } // (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!

Back to Projects Grid