I am using this code to print out on a serial monitor at a particular interval. I don't understand why the code works in the -ve values. millis() gives unsigned long, however, I am curious why the if statement works in the -ve values. int ct, pt = 0; void setup() { Serial.begin(115200); } void…

[image] hexagun: still works. Why? To see how (-31908) - (32627) works in 16 bits we first convert the numbers to hexadecimal: 0x835C - 0x7F73 We change that to an addition problem by changing it to: 0x835C + (-0x7F73) To negate 0x7F73 we invert the bits and add 1 (2's Complement) 0x835C…

Millis() with int

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hexagun October 13, 2021, 11:45am 4

if ct = -31908 and pt = 32627 is considered. The if statement

if (ct - pt > 1000)

still works. Why?

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Millis() with int

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