Diff: main.cpp

Revision:

0:da7e87322045

Child:

1:402b14b56d24

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 29 13:56:18 2016 +0000
@@ -0,0 +1,91 @@
+#include "mbed.h"
+#include "DHT.h"
+#include "ESP8266.h"
+ 
+DHT sensor(D4, DHT11);
+ESP8266 wifi(PTC17, PTC16, 115200);
+Serial pc(USBTX,USBRX);
+DigitalOut RED(LED1);
+char snd[255],rcv[1000];
+#define IP "184.106.153.149" // thingspeak.com IP Address
+void wifi_send(void);
+
+int main()
+{
+    pc.baud(115200);   
+    pc.printf("SET mode to AP\r\n");
+    wifi.SetMode(1);    // set ESP mode to 1
+    wifi.RcvReply(rcv, 1000);    //receive a response from ESP
+    pc.printf("%s",rcv);    //Print the response onscreen
+    pc.printf("Conneting to Wifi\r\n");
+    wifi.Join("533B", "ransom007");     // Your wifi username & Password 
+    wifi.RcvReply(rcv, 1000);    //receive a response from ESP
+    pc.printf("%s\n", rcv);    //Print the response onscreen
+    wait(8);     //waits for response from ESP
+    pc.printf("Getting IP\r\n");    //get IP addresss from the connected AP
+    wifi.GetIP(rcv);    //receive an IP address from the AP
+    pc.printf("%s\n", rcv);
+    wait(5); // Delay 5 sec to give the pir time to get snapshut of the surrounding
+    while (1) 
+    {
+        pc.printf("PLEASE STAY AWAY\r\n");
+        pc.printf("Sending WiFi information\n");
+        wifi_send();
+        RED=1; // when the motion detected turn of the on board red led
+        wait(2.0f);
+        RED=1;
+        wait(1.5f);
+    }    
+}
+void wifi_send(void){
+    int error = 0;
+    float h = 0.0f, c = 0.0f;
+        
+        wait(2.0f);
+        error = sensor.readData();
+        if (0 == error) 
+        {
+            c   = sensor.ReadTemperature(CELCIUS);
+            h   = sensor.ReadHumidity();
+            //printf("Temperature in Celcius: %f\n", c);
+            //printf("Humidity is %f\n", h);
+        } 
+        else 
+        {
+            printf("Error: %d\n", error);
+        }
+  //WIFI updates the Status to Thingspeak servers//
+  strcpy(snd,"AT+CIPMUX=1\n");//Setting WiFi into MultiChannel mode
+  wifi.SendCMD(snd);
+  pc.printf(snd);
+  wait(2.0);
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s\n", rcv);
+  wait(2);
+  sprintf(snd,"AT+CIPSTART=4,\"TCP\",\"%s\",80\n",IP); //Initiate connection with THINGSPEAK server 
+  pc.printf(snd);
+  wait(3.0);
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s\n", rcv);
+  wait(2);
+  strcpy(snd,"AT+CIPSEND=4,47\n");    //Send Number of open connections,Characters to send 
+  wifi.SendCMD(snd);
+  pc.printf(snd);
+  wait(2.0);
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s\n", rcv);
+  wait(2);    
+  sprintf(snd,"GET http://api.thingspeak.com/update?api_key=NVG5E6ZAB970OMRF&field1=%1.3f\n", c); //Post values to thingspeak
+  pc.printf("%s",snd);
+  wifi.SendCMD(snd);
+  wait(2);
+  sprintf(snd,"GET http://api.thingspeak.com/update?api_key=NVG5E6ZAB970OMRF&field2=%1.3f\n", h); //Post values to thingspeak
+  pc.printf("%s",snd);
+  wifi.SendCMD(snd);
+  wait(2);
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s", rcv);
+  wifi.SendCMD("AT+CIPCLOSE"); //Close the connection to server
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s", rcv);
+}
\ No newline at end of file