stopping a sketch once completed

Projects Programming
1

Hi folks, hoping someone can help me. Im writing a sketch and having some trouble with something no doubt is insanely easy, but I cant find anything about it on-line. I want it to follow a set program then stop, but instead once its completed said task it continues to repeat it.

My program is:

/*
motor driver control.
*/

int motor1APin = 6; // H-bridge leg 1
int motor2APin = 7; // H-bridge leg 2

void setup()
{
pinMode(motor1APin, OUTPUT);
pinMode(motor2APin, OUTPUT);
}

void loop()
{
digitalWrite(motor1APin, LOW); // set leg 1 of the H-bridge low
digitalWrite(motor2APin, HIGH); // set leg 2 of the H-bridge high
delay (5000);
digitalWrite(motor1APin, LOW); // set leg 1 of the H-bridge low
digitalWrite(motor2APin, LOW); // set leg 2 of the H-bridge low
delay (1000);
digitalWrite(motor1APin, HIGH); // set leg 1 of the H-bridge low
digitalWrite(motor2APin, LOW); // set leg 2 of the H-bridge high
delay (5000);
digitalWrite(motor1APin, LOW); // set leg 1 of the H-bridge low
digitalWrite(motor2APin, LOW); // set leg 2 of the H-bridge low
}

this is basically a circuit set up with a H Bridge IC Chip for changing the direction of a motor, but i need it to completely stop after this set of tasks. When using PBasic you can just write "end" at the end which would stop it- is there an alternative for this?
Ive just realised its in a void loop() - could that be it?

Any help is greatly appreciated!!

2

Ive just realised its in a void loop() - could that be it?

Nail struck squarely on head.

Put run-once code in "setup()".

please use code tags when posting code.

3

It is better to think of stopping the sketch doing whatever it was doing rather than stopping the sketch.

In this case if you only want to run through a set of instructions once the easiest thing is to move all the code into setup() and leave loop() empty.

If you do want to stop something from repeating after, say 5 iterations, you need a counter and some code like this, perhaps

if (counter > 5) {
   while(true);
}

That WHILE will loop for ever and the only way to stop it is to press the reset button.

...R

4

AWOL:

Ive just realised its in a void loop() - could that be it?

Nail struck squarely on head.

Put run-once code in "setup()".

please use code tags when posting code.

Ah sorry didnt realise till now there was a code tag :slight_smile:

5

There are a few different methods for stopping a sketch explained here: http://arduino.land/FAQ/content/7/47/en/how-to-stop-an-arduino-sketch.html

6

thanks everybody - got it XD