unsigned long

[Data Types]

Description

Unsigned long variables are extended size variables for number storage, and store 32 bits (4 bytes). Unlike standard longs unsigned longs won’t store negative numbers, making their range from 0 to 4,294,967,295 (2^32 - 1).

Syntax

unsigned long var = val;

Parameters

var: variable name.
val: the value you assign to that variable.

Example Code

unsigned 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);
}

See also

  • Language String()

  • Language array

  • Language bool

  • Language boolean

  • Language byte

  • Language char

  • Language double

  • Language float

  • Language int

  • Language long

  • Language short

  • Language size_t

  • Language string

  • Language unsigned char

  • Language unsigned int

  • Language void

  • Language word