Make sure to install the TLOB library by copying the library files to your Arduino library folder/TLOB
Connect 3 leds 1 button to your arduino, one end connects to arduino pins and the other end to ground.
Then copy the template below and replace the pin numbers:
tlob(led1, led2, led3, button)
Now upload the code to your arduino, and hold press the button to check if all leds light up.
It is recommended to call
tlob.update(); once per loop, this will make sure that button variables are processed as expected and that blink functions will work correctly. Alternatively you can call
tlob.updateLeds() and 'tlob.updateButton()` separately.
The TLOB library comes with a few functions and variables to make programming 3L1B games easier. It is recommendable to have a look at led(), blink() and buttonPressed() to begin with, but the other functions will surely be useful to you too.