
97Experiment 5: A Pico Test Transmitter
(Notice that the pin numbers in a sketch are not the same as the basic pin
numbers on the Pico board.)
Continuing down the listing, all Arduino sketches contain two functions
named setup and loop.
(A function is a routine that is contained within two curly brackets, properly
known as brace symbols.)
Additional functions can be added and called by name, but you only need
setup and loop in this sketch.
The setup prepares everything, and the loop then repeats indefinitely. In this
sketch, the setup just initializes the LCD screen. Then the loop begins, and
repeats between the braces on line 22 and line 43.
On ...