Diff: main.cpp

Revision:

0:bab4cf7cdda8

diff -r 000000000000 -r bab4cf7cdda8 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 14 17:09:07 2015 +0000
@@ -0,0 +1,116 @@
+
+// PIR Motion Sensor Alarm + ESP8622 WiFi Module + FRDM-k64f
+//PIR sensor can detect change on its surrounding by measuring the change of infra red
+// Then will send high=1 to the FRDM-k64f to flash the LED, Run the Buzzer,
+//Send information through UART serial Port to Tera Term and display how many motion been
+//detected,also will send information to Thingspeak IoT website using WiFi connection 
+
+
+
+#include "mbed.h"
+#include "ESP8266.h"
+#define APIKEY 7X2TD78DKY4459M0
+
+Serial pc(USBTX,USBRX);
+DigitalOut Buzzer(D10); // output
+PwmOut LED(D13); // flashing the led
+DigitalIn inputPin(D2); // pir senor input
+DigitalOut redled(LED1);
+ESP8266 wifi(PTC17, PTC16, 115200); // baud rate for wifi
+char snd[255],rcv[1000];
+
+#define IP "184.106.153.149" // thingspeak.com IP Address
+
+int val = 0; // value to holed the high/low info from pir from pin D2
+int cnt = 0; // counter for motion
+//String thingtweetAPIKey = "TTEVLP931ODJ5GMT";
+
+/************ WiFi INTIALIZATION *********/
+
+void wifi_initialize(void);
+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 AP\r\n");
+wifi.Join("Network", "Password");     // Your wifi username & Password 
+wifi.RcvReply(rcv, 1000);    //receive a response from ESP
+pc.printf("%s", 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", rcv);
+
+    
+ wait(5); // Delay 5 sec to give the pir time to get snapshut of the surrounding
+
+ pc.printf("Initializing WiFi\r\n");
+ //wifi_initialize();
+    while (1) {
+       
+   val = inputPin.read();
+   
+   if (val==0) {   
+    cnt++;
+   pc.printf(" The Sensor is ON And I Detected = %i Till NOW\r\n",cnt);
+   pc.printf("PLEASE STAY AWAY\r\n");
+    pc.printf("Sending WiFi information");
+    wifi_send();
+    redled=1; // when the motion detected turn of the on board red led
+    LED.period(2.0f); // 2 seconds period
+    wait(2.0f);
+    LED.pulsewidth(.02);    // 2 mseconds pulse (on)
+    redled=1;
+    Buzzer = 1;
+   wait(1.5f);
+          }
+    else {
+         
+    pc.printf(" The Sensor is OFF \r\n");
+        LED = 0;
+         Buzzer =0;
+        redled=0; // turn the on board red led on
+          wait(1.5f);
+         }
+        }
+    }
+
+void wifi_send(void){
+   
+  //WIFI updates the Status to Thingspeak servers//
+  strcpy(snd,"AT+CIPMUX=1");//Setting WiFi into MultiChannel mode
+  wifi.SendCMD(snd);
+  pc.printf(snd);
+  wait(2.0);
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s", rcv);
+  wait(2);
+  sprintf(snd,"AT+CIPSTART=4,\"TCP\",\"%s\",80",IP); //Initiate connection with THINGSPEAK server 
+  pc.printf(snd);
+  wait(3.0);
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s", rcv);
+  wait(2);
+  strcpy(snd,"AT+CIPSEND=4,47");    //Send Number of open connections,Characters to send 
+  wifi.SendCMD(snd);
+  pc.printf(snd);
+  wait(2.0);
+  wifi.RcvReply(rcv, 1000);
+  pc.printf("%s", rcv);
+  wait(2);    
+  sprintf(snd,"GET /update?key=7X2TD78DKY4459M0&field1=%2.2f\r\n",1.0); //Post values to thingspeak
+  pc.printf("%s",snd);
+  wifi.SendCMD(snd);
+  wait(3.0f);
+  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);
+}
+