Servo rotating infinitely when I want it to do so only once - arduino

Question

I am very new to Arduino. I want to make a simple setup, in which, pressing a button on a remote will make the servo rotate 90 degree and come back to 0.
Here is my code:
#include <Servo.h>
#include <IRremote.h>
int receiver = 13;
IRrecv irrecv(receiver);
decode_results results;
Servo myServo;
int pos = 0;
void setup() {
// put your setup code here, to run once:
myServo.attach(9);
Serial.begin(9600);
irrecv.enableIRIn();
myServo.write(0);
delay(200);
}
void loop() {
// put your main code here, to run repeatedly:
if (irrecv.decode(&results)){
if (results.value== 0xC0000C){
for (pos = 0; pos <= 90; pos += 1) {
// in steps of 1 degree
myServo.write(pos);
delay(15);
}
for (pos = 90; pos >= 0; pos -= 1) {
myServo.write(pos);
delay(15);
}
}
}
delay(100);
}
However, when I press the button assigned, the servo keeps swinging from 0 to 90 degree and back infinitely, but I only want it to do so once, each time the button is pressed. How do I do that?

Answer 1

You need to add the line
irrecv.resume();
to the end if loop just before that final delay in order to clear out the results and start looking for a new signal.
void loop() {
// put your main code here, to run repeatedly:
if (irrecv.decode(&results)){
if (results.value== 0xC0000C){
for (pos = 0; pos <= 90; pos += 1) {
// in steps of 1 degree
myServo.write(pos);
delay(15);
}
for (pos = 90; pos >= 0; pos -= 1) {
myServo.write(pos);
delay(15);
}
}
}
irrecv.resume();
delay(100);
}