Term project: Demo

Term - project Demo video

Below is open source that will be used.

#include <LCD5110_Graph.h>

LCD5110 myGLCD(A0,A1,A2,A3,A4);

extern uint8_t SmallFont[];

const int ServoA = 11;

const int ServoB = 10;

const int ServoC = 9;

const int ServoD = 6;

const int clockwise = 1700;

const int counterclockwise = 1300;

const int ButtonA = 8;

const int ButtonB = 7;

const int ButtonC = 5;

const int ButtonD = 4;

const int LEDready = 13;

const int coinInsert = 12;

long previousMillis = 0;

long intervalIdle = 500;

int LEDreadyState = LOW;

int y1= 0; int y2= 10; //position shifters for LCD txt

void setup() {    

     myGLCD.InitLCD(); 

     myGLCD.setFont(SmallFont); 

     myGLCD.setContrast(70); 

     pinMode(ButtonA, INPUT_PULLUP);

     pinMode(ButtonB, INPUT_PULLUP);

     pinMode(ButtonC, INPUT_PULLUP); 

     pinMode(ButtonD, INPUT_PULLUP); 

     

     pinMode(LEDready, OUTPUT); 

     pinMode(coinInsert, INPUT_PULLUP); 

     myGLCD.invert(true); 

     myGLCD.print("VenDuino", CENTER, 1); 

     myGLCD.print("by Ryan", CENTER, 10); 

     myGLCD.print("(c) 2017", CENTER, 30);

     myGLCD.drawRoundRect(13, 0, 70, 8);

     myGLCD.drawRect(0, 20, 83, 47); 

     myGLCD.update(); delay(1000); 

     myGLCD.clrScr();

     myGLCD.update();          } 

 void loop()

 { //--Blink Ready LED---------------------------------------------------

       unsigned long currentMillis = millis(); 

          if(currentMillis - previousMillis >= intervalIdle) { // save the last time you blinked the LED             previousMillis = currentMillis; 

            if (LEDreadyState == LOW){     // if the LED is off turn it on and vice-versa: 

                   LEDreadyState = HIGH; 

                   myGLCD.clrScr(); 

                 myGLCD.print("Please insert", CENTER, y1); 

                 myGLCD.print(" $0.25. ", CENTER, y2);    

                 myGLCD.invert(false); 

                 myGLCD.update();               }

         else

              LEDreadyState = LOW;

              digitalWrite(LEDready, LEDreadyState);// set the LED with the ledState of the variable:

              y1=y1 +5; y2=y2+5; //shift the text position down 

              if ((y1==35) && (y2== 45)) //when the text almost goes off-screen, move it back up 

                     {y1=0; y2=10; } 

      }

 //---Wait for Coin/Credit---------------------------------------------------------------

while (digitalRead(coinInsert)==LOW) { //if coin inserted stay in servo enable loop 

     digitalWrite(LEDready, HIGH); 

     myGLCD.clrScr();     myGLCD.update(); 

     myGLCD.print("Please make", CENTER, 0); 

     myGLCD.print(" a selection. ", CENTER, 10);

     myGLCD.drawRect(20, 20, 63, 47); 

     myGLCD.drawRect(20, 20, 41, 47); 

     myGLCD.drawRect(20, 20, 63, 34); 

     myGLCD.update(); 

     servoEnable();                                         }

}

void servoEnable(){ 

while (digitalRead(ButtonA) == HIGH || digitalRead(ButtonB) == HIGH ||

digitalRead(ButtonC) == HIGH || digitalRead(ButtonD) == HIGH) {

   //---------Servo A---------------------------------------------------- 

     if ((digitalRead(ButtonA) == LOW) ) { 

            for(int i=0; i<2; i++)

         {digitalWrite(LEDready, HIGH); delay(50); digitalWrite(LEDready, LOW); delay(50); }

myGLCD.clrScr(); myGLCD.print("Vending", CENTER, 0);

myGLCD.drawRect(20, 20, 63, 47); myGLCD.drawRect(20, 20, 41, 47);

myGLCD.drawRect(20, 20, 63, 34); myGLCD.print("A1", 25, 24); 

 myGLCD.update();

     for(int i=0; i<57; i++) // change this to adjust +- full revolution 

        { 

         digitalWrite(ServoA,HIGH); 

         delayMicroseconds(clockwise); 

         digitalWrite(ServoA,LOW); 

         delay(18.5); // 18.5ms

          //delay(50); enable this line to slow servo rotation

          } 

          break;                                                  } // when item is dispensed exit loop and return to wait for

  coin 

        //---------Servo B---------------------------------------------------- 

         if ((digitalRead(ButtonB) == LOW) ) { 

              for(int i=0; i<2; i++) 

              {digitalWrite(LEDready, HIGH); delay(50); digitalWrite(LEDready, LOW); delay(50); }    

        myGLCD.clrScr(); myGLCD.print("Vending", CENTER, 0);

        myGLCD.drawRect(20, 20, 63, 47); myGLCD.drawRect(20, 20, 41, 47);

        myGLCD.drawRect(20, 20, 63, 34); myGLCD.print("B1", 46, 24); 

        myGLCD.update();

            for(int i=0; i<57; i++) 

              { 

              digitalWrite(ServoB,HIGH);

              delayMicroseconds(clockwise); 

              digitalWrite(ServoB,LOW); 

              delay(18.5); // 18.5ms 

               //delay(50); 

               } 

             break;                                                             }

           //---------Servo C----------------------------------------------------

           if ((digitalRead(ButtonC) == LOW) ) {

               for(int i=0; i<2; i++) 

               {digitalWrite(LEDready, HIGH); delay(50); digitalWrite(LEDready, LOW); delay(50); } 

         myGLCD.clrScr(); myGLCD.print("Vending", CENTER, 0);

         myGLCD.drawRect(20, 20, 63, 47); myGLCD.drawRect(20, 20, 41, 47);

         myGLCD.drawRect(20, 20, 63, 34); myGLCD.print("C2", 25, 37); 

         myGLCD.update(); 

             for(int i=0; i<57; i++)

            {

             digitalWrite(ServoC,HIGH); 

             delayMicroseconds(clockwise); 

             digitalWrite(ServoC,LOW); 

             delay(18.5); // 18.5ms 

              //delay(50);

              } break;                                                               }

  //---------Servo D---------------------------------------------------- 

 if ((digitalRead(ButtonD) == LOW) ) { 

      for(int i=0; i<2; i++) 

    {digitalWrite(LEDready, HIGH); delay(50); digitalWrite(LEDready, LOW); delay(50); } 

   myGLCD.clrScr(); myGLCD.print("Vending", CENTER, 0);

   myGLCD.drawRect(20, 20,63,7); myGLCD.drawRect(20, 20, 41, 47);

   myGLCD.drawRect(20, 20, 63, 34); myGLCD.print("D2", 46, 37); 

   myGLCD.update(); 

        for(int i=0; i<57; i++) 

          { 

          digitalWrite(ServoD,HIGH); 

          delayMicroseconds(clockwise); 

           digitalWrite(ServoD,LOW); 

           delay(18.5); // 18.5ms 

            //delay(50);

            } 

            break;                                         }                                                                                                        

                                                                                                  }

   }