Diff: main.cpp

Revision:

0:94f21066fc43

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Mar 28 17:19:25 2017 +0000
@@ -0,0 +1,218 @@
+#include "mbed.h"
+#include "MFRC522.h"
+#include "DHT.h"
+#include "ESP8266.h"               // Include header file 
+#include "math.h"
+#include <string>
+
+#define APIKEY D9BGPWTNAGUAZPMB    //Put "Write key" of your channel in thingspeak.com 
+#define IP "184.106.153.149"       // IP Address of "api.thingspeak.com\"
+#define WIFI_SSID "Archit"
+#define WIFI_PASS "archit12"
+
+ESP8266 esp(PTC17, PTC16, 115200); // baud rate for wifi
+
+// FRDM-K64F (Freescale) Pin for MFRC522 reset
+#define MF_RESET PTB19
+
+// Defining the serial ports for PC and Bluetooth
+#define SERIAL_1
+AnalogIn check(PTB3); //thermocouple Analog input
+
+Serial pc(USBTX, USBRX);
+DHT sensor(PTC2,DHT22); //DHT Sensor
+DigitalOut LedGreen(LED2), LedRed(LED1);
+DigitalIn inputPin(PTB13); // pir senor input
+
+int val=1;
+float tmp_f, tmp_c, hum;
+Timer timeBetweenCards;
+char tagname;
+
+uint8_t user[10];
+char Richard[17]="A6027B026802A102";
+char tempo[17];
+char snd[255],rcv[1000],snd_Data[255];
+float x=0;
+
+//MFRC522    RfChip   (SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, MF_RESET);
+MFRC522    RfChip   (PTC6, PTC7, PTC5, PTC3, PTB19);
+
+void esp_initialize(void);
+void esp_send(void);
+
+int main(void)
+{
+    pc.baud(115200);
+    esp_initialize();
+    LedRed= 0;
+
+    // Initialising RC522 Chip
+    RfChip.PCD_Init();
+
+    while (true)
+
+    {
+        if(inputPin==1)
+
+        {
+            printf("Motion Detected!\r\n");
+            printf("************************************************\r\n");
+            printf("You have approached Omnisite Monitioring Solutions!\r\n");
+            printf("------------------------------------------------------------\r\n");
+            printf("Place Your ID to get access:\r\n");
+            printf("------------------------------------------------------------\r\n");
+            wait(2);
+            tagname = '\0';
+            LedRed= 1;
+            LedGreen = 1;
+
+            // checking for new cards
+            if ( ! RfChip.PICC_IsNewCardPresent()) {
+                wait_ms(100);
+                continue;
+            }
+
+            // Selecting one of the cards or key chains
+            if ( ! RfChip.PICC_ReadCardSerial()) {
+                wait_ms(1000);
+                continue;
+            }
+
+            // When a card is detected, a Green Led flashes!
+            timeBetweenCards.start();
+            LedGreen = 0;
+
+            for (uint8_t i = 0; i < RfChip.uid.size; i++) {
+                user[i]=RfChip.uid.uidByte[i];
+            }
+
+            sprintf(tempo,"%X02%X02%X02%X02",user[0],user[1],user[2],user[3]);
+            printf("\n\r");
+            if (strcmp(tempo, Richard)==0) {
+                //Thermocouple program
+                pc.printf("Thermocouple Output:\r\n");
+                x=0;
+                x= check.read_u16();
+                x=x/65536; // ADC Scaling
+                x=x*330;   // GPIO Scaling and IC Scaling(*100)
+                pc.printf("Voltage Difference = %.2f C\n\r",x);
+                wait(3);
+
+
+                //DHT
+                int err;
+                printf("\r\nDHT Test program");
+                printf("\r\n******************\r\n");
+                err = sensor.readData();
+                if (err == 0) {
+                    printf("Temperature is %4.2f C \r\n",sensor.ReadTemperature(CELCIUS));
+                    printf("Temperature is %4.2f F \r\n",sensor.ReadTemperature(FARENHEIT));
+                    printf("Temperature is %4.2f K \r\n",sensor.ReadTemperature(KELVIN));
+                    printf("Humidity is %4.2f \r\n",sensor.ReadHumidity());
+                    printf("Dew point is %4.2f  \r\n",sensor.CalcdewPoint(sensor.ReadTemperature(CELCIUS), sensor.ReadHumidity()));
+                    printf("Dew point (fast) is %4.2f  \r\n",sensor.CalcdewPointFast(sensor.ReadTemperature(CELCIUS), sensor.ReadHumidity()));
+                    printf("--------------------------------------------\r\n");
+                }
+                wait(2);
+
+                tmp_f = sensor.ReadTemperature(FARENHEIT);
+                tmp_c = sensor.ReadTemperature(CELCIUS);
+                hum = sensor.ReadHumidity();
+
+                esp_send();
+            } else if (strcmp(tempo, Richard)!=0) {
+                printf("NOT AUTHORISED\n\r");
+
+            }
+
+        } else if(inputPin==0) {
+        }
+        wait(5);
+    }
+}
+
+void esp_initialize(void)
+{
+    pc.printf("Initializing ESP\r\n");
+
+    pc.printf("Reset ESP\r\n");
+    esp.Reset();                   //RESET ESP
+    esp.RcvReply(rcv, 400);        //receive a response from ESP
+    wait(2);
+
+    strcpy(snd,"AT");
+    esp.SendCMD(snd);
+    pc.printf(snd);
+    esp.RcvReply(rcv, 400);
+    pc.printf(rcv);
+    wait(0.1);
+
+    strcpy(snd,"AT+CWMODE=1");
+    esp.SendCMD(snd);
+    pc.printf(snd);
+    wait(2);
+
+    strcpy(snd,"AT+CWJAP=\"");
+    strcat(snd,WIFI_SSID);
+    strcat(snd,"\",\"");
+    strcat(snd,WIFI_PASS);
+    strcat(snd,"\"");
+
+    esp.SendCMD(snd);
+    pc.printf(snd);
+    wait(5);
+    esp.RcvReply(rcv, 400);
+    pc.printf("\n %s \n", rcv);
+
+    strcpy(snd,"AT+CIPMUX=1");
+    esp.SendCMD(snd);
+    pc.printf(snd);
+    esp.RcvReply(rcv, 400);
+    pc.printf("\n %s \n", rcv);
+
+}
+
+void esp_send(void)
+{
+    //ESP updates the Status of Thingspeak channel//
+
+    strcpy(snd,"AT+CIPSTART=");
+    strcat(snd,"\"TCP\",\"");
+    strcat(snd,IP);
+    strcat(snd,"\",80");
+
+    esp.SendCMD(snd);
+    pc.printf("Send\r\n%s",snd);
+    esp.RcvReply(rcv, 1000);
+    pc.printf("Receive\r\n%s",rcv);
+    wait(1);
+
+    sprintf(snd,"GET https://api.thingspeak.com/update?api_key=D9BGPWTNAGUAZPMB&field1=%f&field2=%f&field3=%f&field4=%.2f\r\n",tmp_f,tmp_c,hum,x);
+
+    int i=0;
+    for(i=0; snd[i]!='\0'; i++);
+    i++;
+    char cmd[255];
+
+    sprintf(cmd,"AT+CIPSEND=%d",i);           //Send Number of open connection and Characters to send
+    esp.SendCMD(cmd);
+    pc.printf("Send\r\n%s",cmd);
+    while(i<=20 || rcv == ">") {
+        esp.RcvReply(rcv, 1000);
+        wait(100);
+        i++;
+    }
+    pc.printf("Receive\r\n%s",rcv);
+
+    esp.SendCMD(snd);       //Post value to thingspeak channel
+    pc.printf("Send\r\n%s",snd);
+
+    while(i<=20 || rcv == "OK") {
+        esp.RcvReply(rcv, 1000);
+        wait(100);
+        i++;
+    }
+    pc.printf("Receive\r\n%s",rcv);
+}
+