Hi all i’m new so i’m at this so sorry if this ends up to be a dumb question.
I’m so confused !
I have some really basic code that moves a servo one way and then moves it back the other way.
I have a global variable to control how many times it performs this, the problem is that i cant seem to update my “cycles” variable after it has been declared.
The really weird bit is if i remove the servo deceleration then my variable gets updated just fine.
someone please put me out of my misery 
here is the code (don’t laugh)
// Servo - Version: Latest
#include <Servo.h>
Servo servo_1;
int pos = 0;
int cycles = 2;
void setup() {
servo_1.attach(2);
//servo_1.write(90);
}
void loop() {
//go forward
if(pos == 0 && cycles >0 ){
for (pos = 1; pos<= 180; pos++){
servo_1.write(pos);
delay(10);
}
}
//go backward
if(pos = 180 && cycles >0){
for (pos = 180; pos>= 1; pos--){
servo_1.write(pos);
delay(10);
}
}
cycles = cycles -1;
}