Diff: main.cpp

Revision:

0:b2db5e8bd926

diff -r 000000000000 -r b2db5e8bd926 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Apr 29 00:17:28 2020 +0000
@@ -0,0 +1,134 @@
+#include "mbed.h"
+#include "Servo.h"
+#include "ESP8266.h"
+#include "math.h"
+#define CloudIP "184.106.153.149"           //Raw IP Address of ThingSpeak Cloud Server
+
+DigitalOut RLed(LED1);                      //when Garage has no spot for parking
+DigitalOut GLed(LED2);                      //when Garage has spot available
+DigitalOut BLed(LED3);                      //Onboard Blue LED for Wifi Tx Indication
+
+ESP8266 wifi(PTC17, PTC16, 9600);         //Tx Pin:PTC17; Rx Pin:PTC17; Baud rate:115200
+DigitalIn  IR1(A0);
+DigitalIn IR2(A1);
+DigitalIn IR3(A2);
+DigitalIn GS(A3);
+Servo myservo(D7);
+void wifi_send(void);             //Connect and Push Data Channel to Cloud Server
+int f_out= 3;                      //variable to count for no of slots available
+int num = 0;
+int open = 1 ;
+char snd[255],rcv[1000];                    //snd: send command to ESP8266
+//rcv: receive response from ESP8266
+int main()
+{ 
+    printf("WELCOME TO PARKING SYSTEM\n\r");
+    printf("Cloud synchronization number : %d", num);
+    printf("Syncing Data with Cloud, Please Wait.\n\r");  
+    printf("Initial Setup\r\n");
+    wifi.SetMode(1);                        //Set ESP mode to 1
+    wifi.RcvReply(rcv, 1000);               //Receive a response from ESP
+    printf("%s\r", rcv);
+
+    printf("Conneting to WiFi\r\n");     //AP Setup Initialization
+    wifi.Join("Kuch Bhi Daal Do", "paiselagenge");   //wifi address details
+    wifi.RcvReply(rcv, 1000);
+    printf("%s\n", rcv);
+    wait(8);
+
+    wifi.GetIP(rcv);                        //Obtains an IP address from the AP
+
+    while (1) {
+        wifi_send();
+
+        RLed = 1;
+        GLed = 1;
+        BLed = 0;
+        wait(2.0f);
+    }
+}
+
+void wifi_send(void)
+{ 
+    while(num<1000000000000) {
+        num=num + 1;
+        
+        GLed=0;
+        BLed=1;
+
+        
+    
+        if(GS==0) {
+            printf("Car is available at parking entrance..checking for slot availability\n\r");
+            if(IR1==0 && IR2==0 && IR3==0) {
+                printf("Parking full try next garage..\n\r");
+                open=0;
+                RLed=0;
+                GLed=1;
+                f_out = 0;
+            } else if (IR1==0 && IR2==0 && IR3==1) {
+                printf(" 1 spot available at slot 3\n\r");
+                f_out = 1;
+            } else if (IR1==0 && IR2==1 && IR3==0) {
+                printf(" 1 spot avaialble at slot 2\n\r");
+                f_out = 1;
+            } else if (IR1==0 && IR2==1 && IR3==1) {
+                printf("Two spots available at slot 2 and 3\n\r");
+                f_out = 2;
+            } else if (IR1==1 && IR2==0 && IR3==0) {
+                printf("One spot available at slot 1\n\r");
+                f_out = 1;
+            } else if (IR1==1 && IR2==0 && IR3==1) {
+                printf("Two spot avaialble at slot 1 and 3\n\r");
+                f_out = 2;
+            } else if (IR1==1 && IR2==1 && IR3==0) {
+                printf("Two spot avaialble at slot 1 and 2\n\r");
+                f_out = 2;
+            } else if (IR1==1 && IR2==1 && IR3==1) {
+                printf("Garage Empty\n\r");
+                f_out = 3;
+            }
+          
+            if(open == 1) {
+                for(int i=0; i<100; i++) {
+                    myservo = i/100.0;
+                    wait(0.01);
+                }
+                for(int i=100; i>0; i--) {
+                    myservo = i/100.0;
+                    wait(0.01);
+                }
+            }
+            }
+             else
+                printf("No car to enter\n\r");
+
+            //Sending Data to the Cloud Server via ESP8266 WiFi Module
+            strcpy(snd,"AT+CIPMUX=0\n\r");        //AT+CIPMUX: Enabling Single Channel Mode
+            wifi.SendCMD(snd);
+            wait(1);
+            wifi.RcvReply(rcv, 1000);
+            wait(1);
+
+            sprintf(snd,"AT+CIPSTART=4,\"TCP\",\"%s\",80\n",CloudIP); //Establish TCP connection w/ Cloud Server
+            wait(1);
+            wifi.RcvReply(rcv, 1000);
+            wait(1);
+
+            strcpy(snd,"AT+CIPSEND=100\n\r");    //Set length of the data that will be sent
+            wifi.SendCMD(snd);
+            printf("%s\r", rcv);
+            wait(1);
+            wifi.RcvReply(rcv, 1000);
+            printf("%s\r", rcv);
+            wait(1);
+
+            //   Pushing the data to Cloud Server via API
+            sprintf(snd,"GET https://api.thingspeak.com/update?api_key=M2RJX3971TCLP0S7&field1=%d\n\r", f_out);
+            wifi.SendCMD(snd);
+            printf("%s\r",snd);
+            wait(1);
+            wifi.RcvReply(rcv, 1000);
+            printf("%s\r", rcv);
+        }
+    }