3_8 Message Selector

4 Button Message Selector

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.

Restore 12 14 18 24 30

Monitor Upload Your Code!

//Show different messages on the screen, depending on which button is pressed #include "CLMiniScreen.h" //The code library enables new functions to be used with the screen CLMiniScreen lcd; //the library name followed by the name you give the LCD screen. Here it is 'lcd' void setup() { //Set all of Code Lab Mini's buttons as INPUT_PULLUP pinmodes pinMode(4,INPUT_PULLUP); pinMode(5,INPUT_PULLUP); pinMode(6,INPUT_PULLUP); pinMode(7,INPUT_PULLUP); lcd.begin(); //.begin() 'sets up' the screen. You'll always need it when using the screen } void loop() { if(digitalRead(4)==LOW){ //if button 4 is pressed... lcd.clear(); //clear off any message on the screen lcd.print("No Way"); //print this message } else if(digitalRead(5)==LOW){ //otherwise, if button 5 is pressed... lcd.clear(); //clear off any message on the screen lcd.print("Not Likely"); //print this message } else if(digitalRead(6)==LOW){ //otherwise, if button 6 is pressed... lcd.clear(); //clear off any message on the screen lcd.print("Looking Good"); //print this message } else if(digitalRead(7)==LOW){ //otherwise, if button 7 is pressed... lcd.clear(); //clear off any message on the screen lcd.print("Absolutely!!"); //print this message } } // (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

Coming Soon!