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);
}
We care about the privacy and personal data of our users.
To continue, please give us your consent:
Please confirm that you have read the privacy policy
Thank you for subscribing!
Curious to learn more?
Are you also a teacher, student, or professional that loves using Arduino in your day-to-day activities?
Then keep up-to-date with either our STEM or Professional monthly newsletters.
Arduino weekly newsletter (already subscribed)
Educators can benefit from the ever growing tech that shapes our environment through fun cool projects.
Why not awe your boss with highly innovative ways to help keep your enterprise connected at no extra cost?
Arduino Survey
We'd like to get to know you little better.
Please help us improve by answering this super short optional survey.
