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.
Revision 0:bab4cf7cdda8, committed 2015-05-14
- Comitter:
- mokhanaf
- Date:
- Thu May 14 17:09:07 2015 +0000
- Commit message:
- Pir+Wifi
Changed in this revision
diff -r 000000000000 -r bab4cf7cdda8 ESP8266.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ESP8266.lib Thu May 14 17:09:07 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/quevedo/code/ESP8266/#77388e8f0697
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); +} +
diff -r 000000000000 -r bab4cf7cdda8 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu May 14 17:09:07 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/8ab26030e058 \ No newline at end of file