Mona Khanafriboor / Mbed 2 deprecated PIR_Sensor_wifi

PIR Motion Alarm system + ESP8266 WiFi module was implemented using FRDM-k64f. PIR sensor will detect motion around its environment and then will send update information to Thingspeak.com website through wifi connection. The main components used in this project: Parallax PIR sensor, LED, ESP8266 WiFi module, 3.0 to 28VDC Voltage range Piezo buzzer.

Dependencies:   ESP8266 mbed

main.cpp@0:bab4cf7cdda8, 2015-05-14 (annotated)

Committer:
mokhanaf
Date:
Thu May 14 17:09:07 2015 +0000
Revision:
0:bab4cf7cdda8
Pir+Wifi

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mokhanaf 0:bab4cf7cdda8 1
mokhanaf 0:bab4cf7cdda8 2 // PIR Motion Sensor Alarm + ESP8622 WiFi Module + FRDM-k64f
mokhanaf 0:bab4cf7cdda8 3 //PIR sensor can detect change on its surrounding by measuring the change of infra red
mokhanaf 0:bab4cf7cdda8 4 // Then will send high=1 to the FRDM-k64f to flash the LED, Run the Buzzer,
mokhanaf 0:bab4cf7cdda8 5 //Send information through UART serial Port to Tera Term and display how many motion been
mokhanaf 0:bab4cf7cdda8 6 //detected,also will send information to Thingspeak IoT website using WiFi connection
mokhanaf 0:bab4cf7cdda8 7
mokhanaf 0:bab4cf7cdda8 8
mokhanaf 0:bab4cf7cdda8 9
mokhanaf 0:bab4cf7cdda8 10 #include "mbed.h"
mokhanaf 0:bab4cf7cdda8 11 #include "ESP8266.h"
mokhanaf 0:bab4cf7cdda8 12 #define APIKEY 7X2TD78DKY4459M0
mokhanaf 0:bab4cf7cdda8 13
mokhanaf 0:bab4cf7cdda8 14 Serial pc(USBTX,USBRX);
mokhanaf 0:bab4cf7cdda8 15 DigitalOut Buzzer(D10); // output
mokhanaf 0:bab4cf7cdda8 16 PwmOut LED(D13); // flashing the led
mokhanaf 0:bab4cf7cdda8 17 DigitalIn inputPin(D2); // pir senor input
mokhanaf 0:bab4cf7cdda8 18 DigitalOut redled(LED1);
mokhanaf 0:bab4cf7cdda8 19 ESP8266 wifi(PTC17, PTC16, 115200); // baud rate for wifi
mokhanaf 0:bab4cf7cdda8 20 char snd[255],rcv[1000];
mokhanaf 0:bab4cf7cdda8 21
mokhanaf 0:bab4cf7cdda8 22 #define IP "184.106.153.149" // thingspeak.com IP Address
mokhanaf 0:bab4cf7cdda8 23
mokhanaf 0:bab4cf7cdda8 24 int val = 0; // value to holed the high/low info from pir from pin D2
mokhanaf 0:bab4cf7cdda8 25 int cnt = 0; // counter for motion
mokhanaf 0:bab4cf7cdda8 26 //String thingtweetAPIKey = "TTEVLP931ODJ5GMT";
mokhanaf 0:bab4cf7cdda8 27
mokhanaf 0:bab4cf7cdda8 28 /************ WiFi INTIALIZATION *********/
mokhanaf 0:bab4cf7cdda8 29
mokhanaf 0:bab4cf7cdda8 30 void wifi_initialize(void);
mokhanaf 0:bab4cf7cdda8 31 void wifi_send(void);
mokhanaf 0:bab4cf7cdda8 32
mokhanaf 0:bab4cf7cdda8 33 int main () {
mokhanaf 0:bab4cf7cdda8 34
mokhanaf 0:bab4cf7cdda8 35 pc.baud(115200);
mokhanaf 0:bab4cf7cdda8 36 pc.printf("SET mode to AP\r\n");
mokhanaf 0:bab4cf7cdda8 37 wifi.SetMode(1); // set ESP mode to 1
mokhanaf 0:bab4cf7cdda8 38 wifi.RcvReply(rcv, 1000); //receive a response from ESP
mokhanaf 0:bab4cf7cdda8 39 pc.printf("%s",rcv); //Print the response onscreen
mokhanaf 0:bab4cf7cdda8 40 pc.printf("Conneting to AP\r\n");
mokhanaf 0:bab4cf7cdda8 41 wifi.Join("Network", "Password"); // Your wifi username & Password
mokhanaf 0:bab4cf7cdda8 42 wifi.RcvReply(rcv, 1000); //receive a response from ESP
mokhanaf 0:bab4cf7cdda8 43 pc.printf("%s", rcv); //Print the response onscreen
mokhanaf 0:bab4cf7cdda8 44 wait(8); //waits for response from ESP
mokhanaf 0:bab4cf7cdda8 45 pc.printf("Getting IP\r\n"); //get IP addresss from the connected AP
mokhanaf 0:bab4cf7cdda8 46 wifi.GetIP(rcv); //receive an IP address from the AP
mokhanaf 0:bab4cf7cdda8 47 pc.printf("%s", rcv);
mokhanaf 0:bab4cf7cdda8 48
mokhanaf 0:bab4cf7cdda8 49
mokhanaf 0:bab4cf7cdda8 50 wait(5); // Delay 5 sec to give the pir time to get snapshut of the surrounding
mokhanaf 0:bab4cf7cdda8 51
mokhanaf 0:bab4cf7cdda8 52 pc.printf("Initializing WiFi\r\n");
mokhanaf 0:bab4cf7cdda8 53 //wifi_initialize();
mokhanaf 0:bab4cf7cdda8 54 while (1) {
mokhanaf 0:bab4cf7cdda8 55
mokhanaf 0:bab4cf7cdda8 56 val = inputPin.read();
mokhanaf 0:bab4cf7cdda8 57
mokhanaf 0:bab4cf7cdda8 58 if (val==0) {
mokhanaf 0:bab4cf7cdda8 59 cnt++;
mokhanaf 0:bab4cf7cdda8 60 pc.printf(" The Sensor is ON And I Detected = %i Till NOW\r\n",cnt);
mokhanaf 0:bab4cf7cdda8 61 pc.printf("PLEASE STAY AWAY\r\n");
mokhanaf 0:bab4cf7cdda8 62 pc.printf("Sending WiFi information");
mokhanaf 0:bab4cf7cdda8 63 wifi_send();
mokhanaf 0:bab4cf7cdda8 64 redled=1; // when the motion detected turn of the on board red led
mokhanaf 0:bab4cf7cdda8 65 LED.period(2.0f); // 2 seconds period
mokhanaf 0:bab4cf7cdda8 66 wait(2.0f);
mokhanaf 0:bab4cf7cdda8 67 LED.pulsewidth(.02); // 2 mseconds pulse (on)
mokhanaf 0:bab4cf7cdda8 68 redled=1;
mokhanaf 0:bab4cf7cdda8 69 Buzzer = 1;
mokhanaf 0:bab4cf7cdda8 70 wait(1.5f);
mokhanaf 0:bab4cf7cdda8 71 }
mokhanaf 0:bab4cf7cdda8 72 else {
mokhanaf 0:bab4cf7cdda8 73
mokhanaf 0:bab4cf7cdda8 74 pc.printf(" The Sensor is OFF \r\n");
mokhanaf 0:bab4cf7cdda8 75 LED = 0;
mokhanaf 0:bab4cf7cdda8 76 Buzzer =0;
mokhanaf 0:bab4cf7cdda8 77 redled=0; // turn the on board red led on
mokhanaf 0:bab4cf7cdda8 78 wait(1.5f);
mokhanaf 0:bab4cf7cdda8 79 }
mokhanaf 0:bab4cf7cdda8 80 }
mokhanaf 0:bab4cf7cdda8 81 }
mokhanaf 0:bab4cf7cdda8 82
mokhanaf 0:bab4cf7cdda8 83 void wifi_send(void){
mokhanaf 0:bab4cf7cdda8 84
mokhanaf 0:bab4cf7cdda8 85 //WIFI updates the Status to Thingspeak servers//
mokhanaf 0:bab4cf7cdda8 86 strcpy(snd,"AT+CIPMUX=1");//Setting WiFi into MultiChannel mode
mokhanaf 0:bab4cf7cdda8 87 wifi.SendCMD(snd);
mokhanaf 0:bab4cf7cdda8 88 pc.printf(snd);
mokhanaf 0:bab4cf7cdda8 89 wait(2.0);
mokhanaf 0:bab4cf7cdda8 90 wifi.RcvReply(rcv, 1000);
mokhanaf 0:bab4cf7cdda8 91 pc.printf("%s", rcv);
mokhanaf 0:bab4cf7cdda8 92 wait(2);
mokhanaf 0:bab4cf7cdda8 93 sprintf(snd,"AT+CIPSTART=4,\"TCP\",\"%s\",80",IP); //Initiate connection with THINGSPEAK server
mokhanaf 0:bab4cf7cdda8 94 pc.printf(snd);
mokhanaf 0:bab4cf7cdda8 95 wait(3.0);
mokhanaf 0:bab4cf7cdda8 96 wifi.RcvReply(rcv, 1000);
mokhanaf 0:bab4cf7cdda8 97 pc.printf("%s", rcv);
mokhanaf 0:bab4cf7cdda8 98 wait(2);
mokhanaf 0:bab4cf7cdda8 99 strcpy(snd,"AT+CIPSEND=4,47"); //Send Number of open connections,Characters to send
mokhanaf 0:bab4cf7cdda8 100 wifi.SendCMD(snd);
mokhanaf 0:bab4cf7cdda8 101 pc.printf(snd);
mokhanaf 0:bab4cf7cdda8 102 wait(2.0);
mokhanaf 0:bab4cf7cdda8 103 wifi.RcvReply(rcv, 1000);
mokhanaf 0:bab4cf7cdda8 104 pc.printf("%s", rcv);
mokhanaf 0:bab4cf7cdda8 105 wait(2);
mokhanaf 0:bab4cf7cdda8 106 sprintf(snd,"GET /update?key=7X2TD78DKY4459M0&field1=%2.2f\r\n",1.0); //Post values to thingspeak
mokhanaf 0:bab4cf7cdda8 107 pc.printf("%s",snd);
mokhanaf 0:bab4cf7cdda8 108 wifi.SendCMD(snd);
mokhanaf 0:bab4cf7cdda8 109 wait(3.0f);
mokhanaf 0:bab4cf7cdda8 110 wifi.RcvReply(rcv, 1000);
mokhanaf 0:bab4cf7cdda8 111 pc.printf("%s", rcv);
mokhanaf 0:bab4cf7cdda8 112 wifi.SendCMD("AT+CIPCLOSE"); //Close the connection to server
mokhanaf 0:bab4cf7cdda8 113 wifi.RcvReply(rcv, 1000);
mokhanaf 0:bab4cf7cdda8 114 pc.printf("%s", rcv);
mokhanaf 0:bab4cf7cdda8 115 }
mokhanaf 0:bab4cf7cdda8 116