Arduino - If Statement - Tutorialspoint

Home Whiteboard Graphing Calculator Online Compilers Practice Articles Tools Chapters Categories Library Courses Certifications Login

• Arduino - Home
• Arduino - Overview
• Arduino - Board Description
• Arduino - Installation
• Arduino - Program Structure
• Arduino - Data Types
• Arduino - Variables & Constants
• Arduino - Operators
• Arduino - Control Statements
• Arduino - Loops
• Arduino - Functions
• Arduino - Strings
• Arduino - String Object
• Arduino - Time
• Arduino - Arrays
• Arduino Function Libraries
• Arduino - I/O Functions
• Arduino - Advanced I/O Function
• Arduino - Character Functions
• Arduino - Math Library
• Arduino - Trigonometric Functions
• Arduino Advanced
• Arduino - Due & Zero
• Arduino - Pulse Width Modulation
• Arduino - Random Numbers
• Arduino - Interrupts
• Arduino - Communication
• Arduino - Inter Integrated Circuit
• Arduino - Serial Peripheral Interface
• Arduino Projects
• Arduino - Blinking LED
• Arduino - Fading LED
• Arduino - Reading Analog Voltage
• Arduino - LED Bar Graph
• Arduino - Keyboard Logout
• Arduino - Keyboard Message
• Arduino - Mouse Button Control
• Arduino - Keyboard Serial
• Arduino Sensors
• Arduino - Humidity Sensor
• Arduino - Temperature Sensor
• Arduino - Water Detector / Sensor
• Arduino - PIR Sensor
• Arduino - Ultrasonic Sensor
• Arduino - Connecting Switch
• Motor Control
• Arduino - DC Motor
• Arduino - Servo Motor
• Arduino - Stepper Motor
• Arduino And Sound
• Arduino - Tone Library
• Arduino - Wireless Communication
• Arduino - Network Communication

• Arduino - Quick Guide
• Arduino - Useful Resources
• Arduino - Discussion

• Selected Reading
• UPSC IAS Exams Notes
• Developer's Best Practices
• Questions and Answers
• Effective Resume Writing
• AI Based Resume Builder
• Personal AI Study Assistant
• Generate Coding Logic
• HR Interview Questions
• Computer Glossary
• Who is Who

Arduino - If statement Previous Quiz Next

It takes an expression in parenthesis and a statement or block of statements. If the expression is true then the statement or block of statements gets executed otherwise these statements are skipped.

Different forms of if statement

Form 1

if (expression) statement;

You can use the if statement without braces { } if you have one statement.

Form 2

if (expression) { Block of statements; }

if Statement Execution Sequence

Example

/* Global variable definition */ int A = 5 ; int B = 9 ; Void setup () { } Void loop () { /* check the boolean condition */ if (A > B) /* if condition is true then execute the following statement*/ A++; /* check the boolean condition */ If ( ( A < B ) && ( B != 0 )) /* if condition is true then execute the following statement*/ { A += B; B--; } } arduino_control_statements.htm Print Page Previous Next Advertisements