Elevator project with stepper motor, opto interrupter and buttons

Other Hardware Motors, Mechanics, Power and CNC
1

Hi all,
I prepare elevator stand with 2 opto interrupters one stepper motor and 3 buttons. The problem is where i push one button and it finished function other buttons is not available and i dont have a loop. Can you support me? The code is below:
/* Example sketch to control a stepper motor with TB6600 stepper motor driver and Arduino without a library: continuous rotation. More info: https://www.makerguides.com */
// Define stepper motor connections:
#define enablePin 8
#define dirPin 6
#define stepPin 7
#define switch0 9
#define switch1 3
#define switch2 4
#define switch3 5
#define opto1 A0
#define opto2 A1
#define opto3 A2
#define ledRed A4
#define ledGreen A5
void setup() {
Serial.begin(9600);
// Declare pins as output:
pinMode(stepPin, OUTPUT);
pinMode(dirPin, OUTPUT);
pinMode(ledRed, OUTPUT);
pinMode(ledGreen, OUTPUT);
pinMode(enablePin, OUTPUT);
pinMode(switch0,INPUT);
pinMode(switch1,INPUT);
pinMode(switch2,INPUT);
pinMode(switch3,INPUT);
pinMode(opto1,INPUT);
// Set the spinning direction CW/CCW:
//digitalWrite(dirPin, HIGH);
digitalWrite(enablePin, LOW);
digitalWrite(ledRed, LOW);
digitalWrite(ledGreen, LOW);
}
void function0()
{
if(digitalRead(switch0)==LOW && digitalRead(switch1)==HIGH && digitalRead(switch2)==HIGH && digitalRead(switch3)==HIGH)
{
for(int i=0;i<20000;i++)
{
digitalWrite(enablePin, LOW);
}
//digitalWrite(enablePin, LOW);
}
}
void function1()
{
if(digitalRead(switch1)==LOW && digitalRead(switch2)==HIGH && digitalRead(switch3)==HIGH)
{
for(int i=0;i<60000;i++)
{
digitalWrite(dirPin, HIGH);
digitalWrite(enablePin, HIGH);
digitalWrite(stepPin, HIGH);
// These four lines result in 1 step:
delayMicroseconds(200);
digitalWrite(stepPin, LOW);
delayMicroseconds(200);
digitalWrite(enablePin, LOW);
if(analogRead(opto1)>900)
{
digitalWrite(enablePin, LOW);
delay(100);
for(int i=0;i<60000;i++)
{
digitalWrite(dirPin, LOW);
digitalWrite(enablePin, HIGH);
digitalWrite(stepPin, HIGH);
// These four lines result in 1 step:
delayMicroseconds(200);
digitalWrite(stepPin, LOW);
delayMicroseconds(200);
digitalWrite(enablePin, LOW);
if(analogRead(opto2)>900)
{
digitalWrite(enablePin, LOW);
//delay(20);
digitalWrite(dirPin, LOW);
for(int i=0;i<60000;i++)
{
if(analogRead(opto2)<900)
{
digitalWrite(enablePin, LOW);
}
else
{
digitalWrite(dirPin, LOW);
digitalWrite(enablePin, HIGH);
digitalWrite(stepPin, HIGH);

                      // These four lines result in 1 step:
                    delayMicroseconds(200);
                    digitalWrite(stepPin, LOW);
                    delayMicroseconds(200);
                    digitalWrite(enablePin, LOW);
                    }
                  }
                 digitalWrite(enablePin, HIGH);
            }
           }
  }
}
//digitalWrite(enablePin, LOW);

}
}
void function2(){
if(digitalRead(switch1)==HIGH && digitalRead(switch2)==LOW && digitalRead(switch3)==HIGH)
{
for(int i=0;i<20000;i++)
{
digitalWrite(enablePin, HIGH);
digitalWrite(stepPin, HIGH);
digitalWrite(dirPin, HIGH);
// These four lines result in 1 step:
delayMicroseconds(200);
digitalWrite(stepPin, LOW);
delayMicroseconds(200);
digitalWrite(enablePin, LOW);
if(analogRead(opto2)>900)
{
digitalWrite(enablePin, LOW);
delay(2000);
digitalWrite(dirPin, LOW);
}
//digitalWrite(enablePin, LOW);
}
}
}
void function3()
{
if(digitalRead(switch1)==HIGH && digitalRead(switch2)==HIGH && digitalRead(switch3)==LOW)
{
for(int i=0;i<20000;i++)
{
digitalWrite(enablePin, HIGH);
digitalWrite(stepPin, HIGH);
digitalWrite(dirPin, LOW);
// These four lines result in 1 step:
delayMicroseconds(200);
digitalWrite(stepPin, LOW);
delayMicroseconds(200);
digitalWrite(enablePin, LOW);
}
//digitalWrite(enablePin, LOW);
}
}
void loop()
{
function0();
function1();
function2();
function3();
}

2

Is it wired correctly with the correct parts? If not post a schematic, not a frizzy drawing with all interconnections shown and links to each piece of hardware. In the code get rid of the delays, they cause all types of problems.

3

How are the switches wired? Do they have external pullup or pulldown resistors?

You may be better off writing the code with a state machine. Here is a tutorial on state machines that even includes an example with an elevator.

4

Thanks for support. When i keep success decision i will upload schematic and project here.

5

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