The NASSAU Pitting Machine

An Arduino MIC driving i) a carrousel, ii) fruit feeding box and iii) a pneumatic piston providing stoning of fruit.

Jan 17, 2020

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2684 views

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2 respects

home automation

art

food and drinks

Components and supplies

Pneumatic cylinder

Relay Module (Generic)

Motor Driver/Controller, H-Bridge

Darlington High Power Transistor

Spherical container on spindle, including a device to pick fruit object; originally a illumination lamp

Belt pulley 60 teeth + pulley 20 teeth

Stepper Motor, Mini Step

Arduino UNO

Project description

Code

https://create.arduino.cc/editor/NassauLv/2af44846-7a96-4bd6-94a8-97b2f3a4190c/preview

c_cpp

The code provides the control of 2 stepper motors (stepper1 for the carrousel and stepper2 for the fruit supply container), the control of the pneumatic valve and also the solonoid magnets which provide a one after one supply of the fruit objects. The code include the homing of the carrousel to assure the correct position of the plunger for the stoning action.

1ttps://create.arduino.cc/editor/NassauLv/2af44846-7a96-4bd6-94a8-97b2f3a4190c/previe

ttps://create.arduino.cc/editor/NassauLv/2af44846-7a96-4bd6-94a8-97b2f3a4190c/previe

untitled

c_cpp

1
2// read the state of the switch value:
3// check if switch is pressed:
4
5        
6  { 
7  if (digitalRead(home_switch)==HIGH)
8    {
9      digitalWrite(GLED,
10  HIGH);
11      digitalWrite(RLED, LOW);
12      digitalWrite(RELAY, LOW);
13
14      
15      delay(20);
16    }
17  
18  else if (digitalRead(home_switch)==LOW);
19
20      digitalWrite(RLED, HIGH);
21      digitalWrite(GLED, LOW);
22      digitalWrite(RELAY,
23  HIGH);
24     
25//Set basket turn 1/2 rotation:
26      stepper2.moveTo (-300);
27//Rotate
28  with set speed and acceleration:
29      stepper2.runToPosition();
30      delay(20);
31  
32    
33//Activate solenoid:
34      digitalWrite(solenoidPin, HIGH);
35
36      delay(200);
37      digitalWrite(solenoidPin, LOW);
38      delay(20);
39
40      
41//Set current position = 0:
42      stepper1.setCurrentPosition(0);
43
44      stepper2.setCurrentPosition(0);
45      
46      delay(20);
47    }
48
49  }  
50

// read the state of the switch value:
// check if switch is pressed:

        
  { 
  if (digitalRead(home_switch)==HIGH)
    {
      digitalWrite(GLED,
  HIGH);
      digitalWrite(RLED, LOW);
      digitalWrite(RELAY, LOW);

      
      delay(20);
    }
  
  else if (digitalRead(home_switch)==LOW);

      digitalWrite(RLED, HIGH);
      digitalWrite(GLED, LOW);
      digitalWrite(RELAY,
  HIGH);
     
//Set basket turn 1/2 rotation:
      stepper2.moveTo (-300);
//Rotate
  with set speed and acceleration:
      stepper2.runToPosition();
      delay(20);
  
    
//Activate solenoid:
      digitalWrite(solenoidPin, HIGH);

      delay(200);
      digitalWrite(solenoidPin, LOW);
      delay(20);

      
//Set current position = 0:
      stepper1.setCurrentPosition(0);

      stepper2.setCurrentPosition(0);
      
      delay(20);
    }

  }

https://create.arduino.cc/editor/NassauLv/2af44846-7a96-4bd6-94a8-97b2f3a4190c/preview

c_cpp

1ttps://create.arduino.cc/editor/NassauLv/2af44846-7a96-4bd6-94a8-97b2f3a4190c/previe

ttps://create.arduino.cc/editor/NassauLv/2af44846-7a96-4bd6-94a8-97b2f3a4190c/previe

untitled

c_cpp

1
2// read the state of the switch value:
3// check if switch is pressed:
4        
5  { 
6  if (digitalRead(home_switch)==HIGH)
7    {
8      digitalWrite(GLED,  HIGH);
9      digitalWrite(RLED, LOW);
10      digitalWrite(RELAY, LOW);
11      
12      delay(20);
13    }
14  
15  else if (digitalRead(home_switch)==LOW);
16      digitalWrite(RLED, HIGH);
17      digitalWrite(GLED, LOW);
18      digitalWrite(RELAY,  HIGH);
19     
20//Set basket turn 1/2 rotation:
21      stepper2.moveTo (-300);
22//Rotate  with set speed and acceleration:
23      stepper2.runToPosition();
24      delay(20);  
25    
26//Activate solenoid:
27      digitalWrite(solenoidPin, HIGH);
28      delay(200);
29      digitalWrite(solenoidPin, LOW);
30      delay(20);
31      
32//Set current position = 0:
33      stepper1.setCurrentPosition(0);
34      stepper2.setCurrentPosition(0);
35      
36      delay(20);
37    }
38  }  
39

// read the state of the switch value:
// check if switch is pressed:
        
  { 
  if (digitalRead(home_switch)==HIGH)
    {
      digitalWrite(GLED,  HIGH);
      digitalWrite(RLED, LOW);
      digitalWrite(RELAY, LOW);
      
      delay(20);
    }
  
  else if (digitalRead(home_switch)==LOW);
      digitalWrite(RLED, HIGH);
      digitalWrite(GLED, LOW);
      digitalWrite(RELAY,  HIGH);
     
//Set basket turn 1/2 rotation:
      stepper2.moveTo (-300);
//Rotate  with set speed and acceleration:
      stepper2.runToPosition();
      delay(20);  
    
//Activate solenoid:
      digitalWrite(solenoidPin, HIGH);
      delay(200);
      digitalWrite(solenoidPin, LOW);
      delay(20);
      
//Set current position = 0:
      stepper1.setCurrentPosition(0);
      stepper2.setCurrentPosition(0);
      
      delay(20);
    }
  }

Downloadable files

Control unit

All connections from Arduino Uno to components such as steppers, drivers, relays, homing-switch and pneumatic valves as well as solenoids controlling fruit supply

Control unit

All connections from Arduino Uno to components such as steppers, drivers, relays, homing-switch and pneumatic valves as well as solenoids controlling fruit supply

Control unit

Documentation

ontpitter_1-2_bb-3_mI4gOfQHFc.jpg

Plunger & Escapement

Plunger for stoning, escapement to control fruit supply to carrousel

Plunger & Escapement

Plunger for stoning, escapement to control fruit supply to carrousel

Plunger & Escapement

ontpitter_1-2_bb-3_mI4gOfQHFc.jpg

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