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