Manish Sawant / Mbed 2 deprecated Pipe_Freeze_Detection_Aqua_Monitoring

A prototype build for pipe freeze detection & prevention system using K64F

Dependencies:   mbed DHT ESP8266

main.cpp@1:8bdc77b1fc60, 2018-12-13 (annotated)

Committer:
geekypirate
Date:
Thu Dec 13 00:50:21 2018 +0000
Revision:
1:8bdc77b1fc60
Parent:
0:9d72427a0730 
This is the prototype build of pipe freeze detection using K64F, DHT11 & ESP8266 WiFi chip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GregC 0:9d72427a0730 1 #include "mbed.h"
geekypirate 1:8bdc77b1fc60 2 #include "ESP8266.h" // Include header file from Author: Antonio Quevedo
geekypirate 1:8bdc77b1fc60 3 #include "math.h"
geekypirate 1:8bdc77b1fc60 4 #include <string>
GregC 0:9d72427a0730 5 #include "DHT.h"
GregC 0:9d72427a0730 6
geekypirate 1:8bdc77b1fc60 7 #define APIKEY OF2O1FTK5UNXYWO8 //Put "Write key" of your channel in thingspeak.com
geekypirate 1:8bdc77b1fc60 8 #define IP "184.106.153.149" // IP Address of "api.thingspeak.com\"
geekypirate 1:8bdc77b1fc60 9 #define WIFI_SSID "WiFi"
geekypirate 1:8bdc77b1fc60 10 #define WIFI_PASS "b5c7f638"
geekypirate 1:8bdc77b1fc60 11
geekypirate 1:8bdc77b1fc60 12 //Board Pinouts******************
geekypirate 1:8bdc77b1fc60 13 DigitalOut heater(D2); //Defining heater pin
geekypirate 1:8bdc77b1fc60 14 DHT sensor(D4, DHT11); //defining temperature sensor
geekypirate 1:8bdc77b1fc60 15 //*******************************
geekypirate 1:8bdc77b1fc60 16
geekypirate 1:8bdc77b1fc60 17 Serial pc(USBTX,USBRX);
geekypirate 1:8bdc77b1fc60 18
geekypirate 1:8bdc77b1fc60 19 ESP8266 esp(PTC17, PTC16, 115200); // baud rate for wifi
geekypirate 1:8bdc77b1fc60 20
geekypirate 1:8bdc77b1fc60 21 char snd[255],rcv[1000],snd_Data[255]; //snd= string used to send command to ESP 8266 wii and rcv = string used to receive response from ESP8266 wifi module
geekypirate 1:8bdc77b1fc60 22
geekypirate 1:8bdc77b1fc60 23 float temperature = 0.0f;
geekypirate 1:8bdc77b1fc60 24
GregC 0:9d72427a0730 25
geekypirate 1:8bdc77b1fc60 26 void esp_initialize(void); // Function used to initialize ESP8266 wifi module
geekypirate 1:8bdc77b1fc60 27 void esp_send(void); // Function used to connect with thingspeak.com and update channel using ESP8266 wifi module
geekypirate 1:8bdc77b1fc60 28
geekypirate 1:8bdc77b1fc60 29 //test variable
geekypirate 1:8bdc77b1fc60 30 float i=0;
geekypirate 1:8bdc77b1fc60 31 float j=10;
geekypirate 1:8bdc77b1fc60 32
geekypirate 1:8bdc77b1fc60 33
geekypirate 1:8bdc77b1fc60 34 int main()
GregC 0:9d72427a0730 35 {
geekypirate 1:8bdc77b1fc60 36
geekypirate 1:8bdc77b1fc60 37 pc.baud(115200); // Baud rate used for communicating with Tera-term on PC
geekypirate 1:8bdc77b1fc60 38
geekypirate 1:8bdc77b1fc60 39 pc.printf("START\r\n"); // Starting point
geekypirate 1:8bdc77b1fc60 40
GregC 0:9d72427a0730 41 int error = 0;
geekypirate 1:8bdc77b1fc60 42
geekypirate 1:8bdc77b1fc60 43 esp_initialize();
GregC 0:9d72427a0730 44
GregC 0:9d72427a0730 45 while(1) {
geekypirate 1:8bdc77b1fc60 46
geekypirate 1:8bdc77b1fc60 47
GregC 0:9d72427a0730 48 wait(2.0f);
geekypirate 1:8bdc77b1fc60 49 error = sensor.readData(); //read sensor for error
GregC 0:9d72427a0730 50 if (0 == error) {
geekypirate 1:8bdc77b1fc60 51 temperature = sensor.ReadTemperature(CELCIUS);
geekypirate 1:8bdc77b1fc60 52 printf("Temperature in Celcius: %4.2f\n", temperature);
geekypirate 1:8bdc77b1fc60 53 }
geekypirate 1:8bdc77b1fc60 54 else {
GregC 0:9d72427a0730 55 printf("Error: %d\n", error);
GregC 0:9d72427a0730 56 }
geekypirate 1:8bdc77b1fc60 57
geekypirate 1:8bdc77b1fc60 58 if (temperature > 24.00) {
geekypirate 1:8bdc77b1fc60 59 heater = 1;
geekypirate 1:8bdc77b1fc60 60 printf("Heater is OFF\n");
geekypirate 1:8bdc77b1fc60 61 }
geekypirate 1:8bdc77b1fc60 62 else {
geekypirate 1:8bdc77b1fc60 63 heater = 0;
geekypirate 1:8bdc77b1fc60 64 printf("Heater is ON\n");
geekypirate 1:8bdc77b1fc60 65 }
geekypirate 1:8bdc77b1fc60 66
geekypirate 1:8bdc77b1fc60 67 wait(3);
geekypirate 1:8bdc77b1fc60 68 esp_send();
geekypirate 1:8bdc77b1fc60 69 i++;
geekypirate 1:8bdc77b1fc60 70 j--;
geekypirate 1:8bdc77b1fc60 71
GregC 0:9d72427a0730 72 }
GregC 0:9d72427a0730 73 }
geekypirate 1:8bdc77b1fc60 74
geekypirate 1:8bdc77b1fc60 75
geekypirate 1:8bdc77b1fc60 76 void esp_initialize(void)
geekypirate 1:8bdc77b1fc60 77 {
geekypirate 1:8bdc77b1fc60 78 pc.printf("Initializing ESP\r\n");
geekypirate 1:8bdc77b1fc60 79
geekypirate 1:8bdc77b1fc60 80 pc.printf("Reset ESP\r\n");
geekypirate 1:8bdc77b1fc60 81 esp.Reset(); //RESET ESP
geekypirate 1:8bdc77b1fc60 82 esp.RcvReply(rcv, 400); //receive a response from ESP
geekypirate 1:8bdc77b1fc60 83 //pc.printf(rcv); //Print the response onscreen
geekypirate 1:8bdc77b1fc60 84 wait(2);
geekypirate 1:8bdc77b1fc60 85
geekypirate 1:8bdc77b1fc60 86 strcpy(snd,"AT");
geekypirate 1:8bdc77b1fc60 87 esp.SendCMD(snd);
geekypirate 1:8bdc77b1fc60 88 pc.printf(snd);
geekypirate 1:8bdc77b1fc60 89 //wait(2);
geekypirate 1:8bdc77b1fc60 90 esp.RcvReply(rcv, 400);
geekypirate 1:8bdc77b1fc60 91 pc.printf(rcv);
geekypirate 1:8bdc77b1fc60 92 wait(0.1);
geekypirate 1:8bdc77b1fc60 93
geekypirate 1:8bdc77b1fc60 94 strcpy(snd,"AT+CWMODE=1");
geekypirate 1:8bdc77b1fc60 95 esp.SendCMD(snd);
geekypirate 1:8bdc77b1fc60 96 pc.printf(snd);
geekypirate 1:8bdc77b1fc60 97 wait(2);
geekypirate 1:8bdc77b1fc60 98
geekypirate 1:8bdc77b1fc60 99 strcpy(snd,"AT+CWJAP=\"");
geekypirate 1:8bdc77b1fc60 100 strcat(snd,WIFI_SSID);
geekypirate 1:8bdc77b1fc60 101 strcat(snd,"\",\"");
geekypirate 1:8bdc77b1fc60 102 strcat(snd,WIFI_PASS);
geekypirate 1:8bdc77b1fc60 103 strcat(snd,"\"");
geekypirate 1:8bdc77b1fc60 104
geekypirate 1:8bdc77b1fc60 105 esp.SendCMD(snd);
geekypirate 1:8bdc77b1fc60 106 pc.printf(snd);
geekypirate 1:8bdc77b1fc60 107 wait(5);
geekypirate 1:8bdc77b1fc60 108 esp.RcvReply(rcv, 400);
geekypirate 1:8bdc77b1fc60 109 pc.printf("\n %s \n", rcv);
geekypirate 1:8bdc77b1fc60 110
geekypirate 1:8bdc77b1fc60 111 strcpy(snd,"AT+CIPMUX=0");
geekypirate 1:8bdc77b1fc60 112 esp.SendCMD(snd);
geekypirate 1:8bdc77b1fc60 113 pc.printf(snd);
geekypirate 1:8bdc77b1fc60 114 //wait(2);
geekypirate 1:8bdc77b1fc60 115 esp.RcvReply(rcv, 400);
geekypirate 1:8bdc77b1fc60 116 pc.printf("\n %s \n", rcv);
geekypirate 1:8bdc77b1fc60 117
geekypirate 1:8bdc77b1fc60 118 }
geekypirate 1:8bdc77b1fc60 119
geekypirate 1:8bdc77b1fc60 120
geekypirate 1:8bdc77b1fc60 121 void esp_send(void)
geekypirate 1:8bdc77b1fc60 122 {
geekypirate 1:8bdc77b1fc60 123
geekypirate 1:8bdc77b1fc60 124 //ESP updates the Status of Thingspeak channel//
geekypirate 1:8bdc77b1fc60 125
geekypirate 1:8bdc77b1fc60 126 strcpy(snd,"AT+CIPSTART=");
geekypirate 1:8bdc77b1fc60 127 strcat(snd,"\"TCP\",\"");
geekypirate 1:8bdc77b1fc60 128 strcat(snd,IP);
geekypirate 1:8bdc77b1fc60 129 strcat(snd,"\",80");
geekypirate 1:8bdc77b1fc60 130
geekypirate 1:8bdc77b1fc60 131 esp.SendCMD(snd);
geekypirate 1:8bdc77b1fc60 132 pc.printf("S\r\n%s",snd);
geekypirate 1:8bdc77b1fc60 133 //wait(2);
geekypirate 1:8bdc77b1fc60 134 esp.RcvReply(rcv, 1000);
geekypirate 1:8bdc77b1fc60 135 pc.printf("R\r\n%s",rcv);
geekypirate 1:8bdc77b1fc60 136 wait(1);
geekypirate 1:8bdc77b1fc60 137
geekypirate 1:8bdc77b1fc60 138 sprintf(snd,"GET https://api.thingspeak.com/update?key=OF2O1FTK5UNXYWO8&field1=%f&field2=%f\r\n",temperature,heater);
geekypirate 1:8bdc77b1fc60 139
geekypirate 1:8bdc77b1fc60 140 int i=0;
geekypirate 1:8bdc77b1fc60 141 for(i=0;snd[i]!='\0';i++);
geekypirate 1:8bdc77b1fc60 142 i++;
geekypirate 1:8bdc77b1fc60 143 char cmd[255];
geekypirate 1:8bdc77b1fc60 144
geekypirate 1:8bdc77b1fc60 145 sprintf(cmd,"AT+CIPSEND=%d",i); //Send Number of open connection and Characters to send
geekypirate 1:8bdc77b1fc60 146 esp.SendCMD(cmd);
geekypirate 1:8bdc77b1fc60 147 pc.printf("S\r\n%s",cmd);
geekypirate 1:8bdc77b1fc60 148 while(i<=20 || rcv == ">")
geekypirate 1:8bdc77b1fc60 149 {
geekypirate 1:8bdc77b1fc60 150 esp.RcvReply(rcv, 1000);
geekypirate 1:8bdc77b1fc60 151 wait(100);
geekypirate 1:8bdc77b1fc60 152 i++;
geekypirate 1:8bdc77b1fc60 153 }
geekypirate 1:8bdc77b1fc60 154 pc.printf("R\r\n%s",rcv);
geekypirate 1:8bdc77b1fc60 155
geekypirate 1:8bdc77b1fc60 156 esp.SendCMD(snd); //Post value to thingspeak channel
geekypirate 1:8bdc77b1fc60 157 pc.printf("S\r\n%s",snd);
geekypirate 1:8bdc77b1fc60 158
geekypirate 1:8bdc77b1fc60 159 while(i<=20 || rcv == "OK")
geekypirate 1:8bdc77b1fc60 160 {
geekypirate 1:8bdc77b1fc60 161 esp.RcvReply(rcv, 1000);
geekypirate 1:8bdc77b1fc60 162 wait(100);
geekypirate 1:8bdc77b1fc60 163 i++;
geekypirate 1:8bdc77b1fc60 164 }
geekypirate 1:8bdc77b1fc60 165 pc.printf("R\r\n%s",rcv);
geekypirate 1:8bdc77b1fc60 166
geekypirate 1:8bdc77b1fc60 167 }