main.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2019 ARM Limited
00003  * SPDX-License-Identifier: Apache-2.0
00004  */
00005 
00006 #include "mbed.h"
00007 //#include "platform/mbed_thread.h"
00008 #include "hcsr04.h"
00009 
00010 DigitalOut myled(LED1);
00011 Serial pc(USBTX,USBRX);
00012 HCSR04  usensor(D8, D9);
00013 unsigned int dist;
00014 DigitalOut GREEN(D7); 
00015 DigitalOut BLUE(LED3);  
00016 Timer dt;
00017 
00018 
00019 #include "MFRC522.h" 
00020 // FRDM-K64F (Freescale) Pin for MFRC522 reset 
00021 #define MF_RESET    PTD0 
00022 #define SERIAL_1
00023 
00024 DigitalOut LedGreen(LED2); 
00025 
00026 //Serial connection to PC for output 
00027 //Serial pc(PTC17, PTC16); // serial comm on the FRDM board
00028 
00029 //wireless bluetooth connection to Android Device for output
00030 Serial blue(PTC15, PTC14);   
00031 
00032  
00033 //MFRC522    RfChip   (SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, MF_RESET); 
00034 MFRC522    RfChip   (PTD2, PTD3, PTD1, PTE25, PTD0); 
00035  
00036 int counter1 = 0;
00037 int counter2 = 0; 
00038  
00039 
00040 
00041 // Blinking rate in milliseconds
00042 //#define BLINKING_RATE_MS 500
00043 
00044 
00045 int main()
00046 {
00047     // Initialise the digital pin LED1 as an output
00048     DigitalOut led(LED1);
00049 
00050     /*while (true) {
00051         led = !led;
00052         //thread_sleep_for(BLINKING_RATE_MS);
00053     }*/
00054     BLUE=1;
00055     pc.baud(9600);
00056     dt.start(); 
00057     while(1) {
00058         usensor.start();
00059         wait_ms(500); 
00060         dist=usensor.get_dist_cm();
00061         pc.printf("\n\r cm:%ld",dist);
00062         
00063             printf("Welcome to RFID Tag Reader Using FRDM K64F...\n\r");
00064    blue.printf("Welcome to RFID Tag Reader Uing FRDM K64F...\n\r");
00065    printf("Bluetooth Enable\r\n");
00066    blue.printf("Bluetooth Enable\r\n");
00067    RfChip.PCD_Init(); 
00068  
00069     
00070      LedGreen = 1; 
00071  
00072      // Look for new cards 
00073      if ( ! RfChip.PICC_IsNewCardPresent()) 
00074      { 
00075        if (dist>20)
00076         {
00077          GREEN = !GREEN;
00078         }
00079         else
00080         {
00081             BLUE=0;
00082             continue;
00083         } 
00084      } 
00085  
00086      // Select one of the cards 
00087      if ( ! RfChip.PICC_ReadCardSerial()) 
00088      { 
00089        if (dist>20)
00090         {
00091          GREEN = !GREEN;
00092         }
00093         else
00094         {
00095             BLUE=0;
00096             continue;
00097         } 
00098      } 
00099       LedGreen = 0;
00100       int a=0; 
00101  
00102      // Print Card UID 
00103      printf("Card UID:"); 
00104      blue.printf("Card UID:");
00105      for (uint8_t i = 0; i < RfChip.uid.size; i++) 
00106      { 
00107       printf(" %X02 ", RfChip.uid.uidByte[i]);
00108       blue.printf(" %X02 ", RfChip.uid.uidByte[i]);
00109       a = RfChip.uid.uidByte[0];
00110      }  
00111      printf("%d",a);
00112      
00113      //Print Card Type
00114     if(a==73)
00115     { 
00116     if(counter1 == 0){
00117          printf("\r\nMilk is in the fridge");
00118          blue.printf("\r\nWhite Card");
00119          counter1 = 1;
00120      }
00121      else if(counter1 == 1){
00122          printf("\r\nMilk is out of the fridge");
00123          counter1 = 0;
00124          }
00125      }
00126     
00127      if(a==207)
00128      {
00129     if (counter2 == 0)
00130     {
00131     printf("\r\nBeer is in the fridge");
00132     blue.printf("\r\nBlue Keychain");
00133     counter2 = 1;
00134     }
00135     else if (counter2 == 1){
00136     printf("\r\nBeer is out of the fridge");
00137     counter2 = 0;
00138     }
00139     }
00140     //wait(1);
00141      printf("\n\r"); 
00142      blue.printf("\n\r"); 
00143    
00144          printf("\r\nParcel taken");
00145          blue.printf("\r\nParcel taken");
00146         
00147      printf("\n\r"); 
00148      blue.printf("\n\r"); 
00149      
00150      // Print RFID Card type 
00151      uint8_t piccType = RfChip.PICC_GetType(RfChip.uid.sak); 
00152      printf("PICC Type: %s \n\n\r\r", RfChip.PICC_GetTypeName(piccType));
00153      blue.printf("PICC Type: %s \n\n\r\r", RfChip.PICC_GetTypeName(piccType));  
00154    break;
00155    }
00156      
00157       blue.baud(9600);
00158    pc.baud(9600);
00159     }
00160   
00161 
00162 
00163