Arduino Language Reference

AZ3166 supported Arduino language reference.

Functions

Digital I/O

digitalRead(), digitalWrite(), pinMode()

Analog I/O

analogRead(), analogReference(), analogWrite()

Zero, Due & MKR Family

analogReadResolution(), analogWriteResolution()

Time

delay(), delayMicroseconds(), micros(), millis()

Math

abs(), constrain(), map(), max(), min(), pow(), sq(), sqrt()

Trigonometry

cos(), sin(), tan()

Characters

isAlpha(), isAlphaNumeric(), isAscii(), isControl(), isDigit(), isGraph(), isHexadecimalDigit(), isLowerCase(), isPrintable(), isPunct(), isSpace(), isUpperCase(), isWhitespace()

Random Numbers

random(), randomSeed()

Bits and Bytes

bit(), bitClear(), bitRead(), bitSet(), bitWrite(), highByte(), lowByte()

External Interrupts

attachInterrupt(), detachInterrupt()

Interrupts

interrupts(), noInterrupts()

Communication

serial, stream

Variables

Constants

Floating Point Constants, Integer Constants, HIGH, LOW, INPUT, OUTPUT, INPUT_PULLUP, LED_BUILTIN, true, false

Conversion

byte(), char(), float(), int(), long(), word()

Data Types

String(), array, boolean, byte, char, double, float, int, long, short, string, unsigned char, unsigned int, unsigned long, void, word

Variable Scope & Qualifiers

const, scope, static, volatile

Utilities

PROGMEM, sizeof()

Structure

Sketch

loop(), setup()

Control Structure

break, continue, do…while, else, for, goto, if…else, return, switch…case, while

Further Syntax

#define (define), #include (include), /* */ (block comment), // (single line comment), ; (semicolon), {} (curly braces)

Arithmetic Operators

% (modulo), * (multiplication), + (addition), - (subtraction), / (division), = (assignment operator)

Comparison Operators

!= (not equal to), < (less than), <= (less than or equal to), == (equal to), > (greater than), >= (greater than or equal to)

Boolean Operators

! (logical not), && (logical and), || (logical or)

Pointer Access Operators

& (reference operator), * (dereference operator)

Bitwise Operators

& (bitwise and), « (bitshift left), » (bitshift right), ^ (bitwise xor), | (bitwise or), ~ (bitwise not)

Compound Operators

&= (compound bitwise and), *= (compound multiplication), ++ (increment), += (compound addition), – (decrement), -= (compound subtraction), /= (compound division), |= (compound bitwise or)