3 Arduino: IF and IF-ELSE

How do you set a digital pin to "on" using the digitalWrite() function?

• digitalWrite(pin, OFF)

• digitalWrite(pin, 1)

• digitalWrite(pin, HIGH)

• digitalWrite(pin, ON)

What are variables used for in Arduino programming?

• Variables in Arduino programming are used to display data on the LCD screen.

• Variables in Arduino programming are used to control the flow of the program.

• Variables in Arduino programming are used to connect to external devices.

• Variables in Arduino programming are used to store and manipulate data.

What is the purpose of the pinMode() function in Arduino programming?

• The pinMode() function is used to set the pin mode to analog.

• The purpose of the pinMode() function is to configure a pin as input or output.

• The pinMode() function is used to initialize the Arduino board.

• The pinMode() function is used to control the speed of the Arduino board.

Used to end a statement or command

• !

• "

• ;

• \

These tell the Arduino software when the setup or loop sections begins and ends. Without them, the software is lost and unable to compile your code. Think of these as additional punctuation that your code requires. Your code must be perfectly punctuated to compile.

• ( )

• [ ]

• < >

• { }

Used to end a statement

• !

• "

• ;

• \

Comparison operator which means not equal to.

• ++

• ==

• --

• !=

has a range of values (often 0-255)

• Polarity

• digital

• Analog

• boolean

Comparison operator which means equal to.

• ++

• ==

• =

• !=

What is an "if" statement?

• Lines of code activated when conditions are met

• Executes a written line of code.

• Stops the code if certain requirements are not met

• Repeats a command until a statement is true.