The data structure has been discussed in posts 2,3,5&7. Are you asking how or when to modify them?

By the way, are there any other variables you might need? Like what the elevator is doing?

i want to know how to write it in a code and will i use it in this state machine or i will use another code ? . and this is all the variable s that i need for now , if there is any thin came up i will modify it.

 

I assume the proximity sensors will tell the car to slow when approaching a floor it needs to stop on.

What tells it when to stop?

 

when it approach the proximity sensor MCU give order to the motor to stop. no problem in this let's pass to the important step -storing requests- then i will modify the design if needed

 

Here is an example, described in words…

If call button for up is pressed on floor n, set the corresponding array entry (the nth element) to 1 in the up array. If the down button is pressed, set the nth element in the down array instead.

The logic is similar but more complex if the individual call buttons are pressed in the elevator.

 

Similarly call buttons in the car set the same elements, but the choice of either up array or down array is determined by the floor the car is on.

I hesitate to state this as it is bass ackwards. First comes the specfication, then the design for hardware, then the overall architecture design for software, then the last and final stage is writing some code.

 

Similarly call buttons in the car set the same elements, but the choice of either up array or down array is determined by the floor the car is on.

I hesitate to state this as it is bass ackwards. First comes the specfication, then the design for hardware, then the overall architecture design for software, then the last and final stage is writing some code.

I totally agree. I almost didn't post anything for that reason, but decided to throw the TS a bone.

 

how to write the code

Here is an example, described in words…

If call button for up is pressed on floor n, set the corresponding array entry (the nth element) to 1 in the up array. If the down button is pressed, set the nth element in the down array instead.

The logic is similar but more complex if the individual call buttons are pressed in the elevator.

i know this but i don't know how to code it and you said you will help with the code .

 

Yes we are quite willing to help you with your code. That includes our observations, recommendations, corrections and the like.

It does not now nor will it ever entail writing your code for you.

I imagine you are new to C which is why you picked a particularly tough problem to begin with. Perhaps you should pick a simpler problem and work your way up to the elevator.

 

May I remind you of some excellent advice you've received.

Now if you expect someone to write code to your spec... I suspect your wait will be much shortened if you cross post in the Flea market section and request consultants.
Ain't no one gonna write your code for free.

Sorry if this is frustrating, but TANSTAAFL