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Mastering Conditional Statements

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Questions and Answers

What does digitalRead() do?

Writes a value to an analog pin

Reads the value from a digital pin (correct)

Writes a value to a digital pin

Reads the value from an analog pin

What is the syntax for using "if" statement?

if [condition] { code to execute }

if (condition) [code to execute]

if (condition) { code to execute } (correct)

if {condition} [code to execute]

Which of the following statements is true about digitalWrite()?

It can enable or disable the internal pull-up resistor on an input pin. (correct)

It can only write a HIGH value to a digital pin.

It is not recommended to use digitalWrite() without setting pinMode() to OUTPUT.

It only works on digital pins set to OUTPUT mode

Which of the following can digitalRead() return?

Both HIGH and LOW Signup and view all the answers

What is the default action if no tests are true in "if/else" statement?

"else" statement will execute Signup and view all the answers

What is the recommended pinMode() setting to enable the internal pull-up resistor?

INPUT_PULLUP Signup and view all the answers

Which statement can also be used for testing multiple conditions?

"switch case" Signup and view all the answers

What is the syntax of digitalWrite() and what does it return?

Syntax: digitalWrite(pin, value), returns nothing Signup and view all the answers

What must be specified as a parameter when using digitalRead()?

The pin number to read Signup and view all the answers

Study Notes

The "if" statement is used to test if a condition has been met.
The syntax for using "if" is "if (condition) { code to execute }".
The curly braces can be omitted if there is only one line of code to execute.
The condition in the parentheses must use one or more operators.
"if/else" allows for multiple tests to be combined.
If a test is true, the code associated with it will execute.
"else if" can be used to add additional tests.
"else" is the default action if no tests are true.
"switch case" can also be used for testing multiple conditions.
It is important to use proper syntax and indentation for readability.

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Description

Test your knowledge on using conditional statements in programming with this quiz! Learn about the "if" statement and how to combine multiple tests using "if/else" and "switch case". Understand the importance of proper syntax and indentation for readability. Challenge yourself to see how well you know conditional statements and their syntax in programming.