Diff: main.cpp

Revision:

0:1fdb07d055b9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jun 07 04:14:28 2018 +0000
@@ -0,0 +1,138 @@
+//Test of cheap 13.56 Mhz RFID-RC522 module from eBay
+//This code is based on Martin Olejar's MFRC522 library. Minimal changes
+//Adapted for Nucleo STM32 F401RE. Should work on other Nucleos too
+ 
+//Connect as follows:
+//RFID pins        ->  Nucleo header CN5 (Arduino-compatible header)
+//----------------------------------------
+//RFID IRQ=pin5    ->   Not used. Leave open
+//RFID MISO=pin4   ->   Nucleo SPI_MISO=PA_6=D12
+//RFID MOSI=pin3   ->   Nucleo SPI_MOSI=PA_7=D11
+//RFID SCK=pin2    ->   Nucleo SPI_SCK =PA_5=D13
+//RFID SDA=pin1    ->   Nucleo SPI_CS  =PB_6=D10
+//RFID RST=pin7    ->   Nucleo         =PA_9=D8
+//3.3V and Gnd to the respective pins                              
+                              
+#include "mbed.h"
+#include "MFRC522.h"
+#include "SPI.h"
+#include "MQTTEthernet.h"
+#include "MQTTClient.h"
+
+#define ECHO_SERVER_PORT   7
+ 
+// Nucleo Pin for MFRC522 reset (pick another D pin if you need D8)
+//#define MF_RESET    D8
+ 
+#define SPI_MOSI D11
+#define SPI_MISO D12
+#define SPI_SCK D13
+#define SPI_CS D10
+#define MF_RESET D9
+DigitalOut l1(D4);
+DigitalOut l2(D5);
+DigitalOut LedGreen(LED1);
+ 
+//Serial connection to PC for output
+//Serial pc(USBTX, USBRX);
+ 
+MFRC522    RfChip   (SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, MF_RESET);
+ 
+int main(void) {
+    //pc.printf("starting...\n");
+    
+    Serial pc(USBTX, USBRX);
+    pc.baud(115200);
+    printf("Wait a second...\r\n");
+    char* topic = "openhab/parents/command";
+    MQTTEthernet ipstack = MQTTEthernet();
+    
+    MQTT::Client<MQTTEthernet, Countdown> client = MQTT::Client<MQTTEthernet, Countdown>(ipstack);
+    
+    char* hostname = "172.16.73.4";
+    int port = 1883;
+    
+    int rc = ipstack.connect(hostname, port);
+    if (rc != 0)
+        printf("rc from TCP connect is %d\n", rc);
+        
+    printf("Topic: %s\r\n",topic);
+    
+    MQTTPacket_connectData data = MQTTPacket_connectData_initializer;       
+    data.MQTTVersion = 3;
+    data.clientID.cstring = "parents";
+
+    if ((rc = client.connect(data)) == 0)
+        printf("rc from MQTT connect is %d\n", rc);
+ 
+  //Init. RC522 Chip
+  RfChip.PCD_Init();
+ 
+  while (true) {
+    //LedGreen = 1;
+    pc.printf("enterd loop...\n");
+    // Look for new cards
+    if ( ! RfChip.PICC_IsNewCardPresent())
+    {
+      wait_ms(500);
+      continue;
+    }
+ 
+    // Select one of the cards
+    if ( ! RfChip.PICC_ReadCardSerial())
+    {
+      wait_ms(500);
+      continue;
+    }
+ 
+    //LedGreen = 0;
+    char data[20]="";
+    char data1[20]="";
+    
+    // Print Card UID
+    pc.printf("Card UID: ");
+    printf("Size of UID: %d \n",RfChip.uid.size);
+    for (uint8_t i = 0; i < RfChip.uid.size; i++)
+    {
+      char temp[5];
+      pc.printf(" %X02", RfChip.uid.uidByte[i]);
+      sprintf(temp,"%X02", RfChip.uid.uidByte[i]);
+      strcat(data,temp);
+    }
+    
+    /*    
+    pc.printf("\n\r");
+    printf("%s\n\r",data);
+    */
+ 
+    // Print Card type
+    uint8_t piccType = RfChip.PICC_GetType(RfChip.uid.sak);
+    pc.printf(" \nPICC Type: %s \n\r", RfChip.PICC_GetTypeName(piccType));
+    wait_ms(1000);
+    
+    if(strcmp(data,"5C02820285024502")==0)
+    {   
+        strcat(data1,"fruits");
+    }
+    if(strcmp(data,"B3026802A002202")==0)
+    {
+        strcat(data1,"vegatables");
+    }
+    if(strcmp(data,"F2029C02AC021F02")==0)
+    {
+        strcat(data1,"milk");
+    
+    MQTT::Message message;
+    char buf[100];
+    sprintf(buf, "%s", data1);
+    message.qos = MQTT::QOS0;
+    message.retained = false;
+    message.dup = false;
+    message.payload = (void*)data1;
+    message.payloadlen = strlen(data1);
+    rc = client.publish("grocery", message); 
+    client.yield(60000);
+    memset(data1, '\0',sizeof(data1)); 
+  }
+}
+}
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