• Variable Declaration

• Integer Constants

• var - the long variable name
• val - the value assigned to the variable

[@ long speedOfLight = 186000L; // see Integer Constants for explanation of the 'L'

[@ long speedOfLight = 186000L; // see Integer Constants

[@long speedOfLight = 186000L; // see Integer Constants

Syntax

• unsigned int
• unsigned long

• byte

See Also

• [[byte]
• int

Long variables are extended size variables for number storage, and store 32 bits (4 bytes), from -2,147,483,648 to 2,147,483,647.

• var - your long variable name

long

long time;

void setup(){
  Serial.begin(9600);
}
void loop(){
  Serial.print("Time: ");
  time = millis();
  //prints time since program started
  Serial.println(time);
  // wait a second so as not to send massive amounts of data
  delay(1000);
}

long

Description

Long variables are extended size varialbes for number storage, and store 32 bits, from -2,147,483,648 to 2,147,483,647.

Example

    int ledPin = 13;

Parameters

    long var = val;

• var - your int variable name
• val - the value you assign to that variable

Reference Home

32 bits, from -2,147,483,648 to 2,147,483,647.