thank you Tim,
to tell you the truth I am not a bit concerned about this as long as tasks that I assign the controller to do do not interfere or interrupt each other , so that is my only concern actually . i am working on a code were i need to initiate a relay while certain readings are obtained by an ultrasound sensor and start a sound for a certain period of time at the same time and then stopping it without interrupting the relay function at any time because the relay function could last for 1:30 hour or more,
so do you think that i can just use the readDigital function to read the pin I assigned as writeDigital (pin, High)
to activate the relay and link it in an If function to do the cut tones without affecting the relay function?
thanks,