Shruthi B / Mbed 2 deprecated heart_rate_monitor

Grove ear clip sensor and ESP 8266 Wi-Fi module on FRDM-K64F over Thingspeak Server Cloud

Dependencies:   mbed GroveEarbudSensor ESP8266_eduvance_shield

main.cpp@0:4c4c953ccd57, 2018-12-02 (annotated)

Committer:
bhshruthi92
Date:
Sun Dec 02 20:37:25 2018 +0000
Revision:
0:4c4c953ccd57
Uses Grove ear clip sensor and ESP 8266 Wi-Fi module on FRDM-K64F and sent to patient using Thingspeak Server cloud.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bhshruthi92 0:4c4c953ccd57 1 #include "mbed.h"
bhshruthi92 0:4c4c953ccd57 2 #include "ESP8266.h"
bhshruthi92 0:4c4c953ccd57 3 #include <string.h>
bhshruthi92 0:4c4c953ccd57 4 #include <stdio.h>
bhshruthi92 0:4c4c953ccd57 5 #include "GroveEarbudSensor.h"
bhshruthi92 0:4c4c953ccd57 6
bhshruthi92 0:4c4c953ccd57 7 #define APIKEY SJYFHXQEDBQ75N91 //Put "Write key" of your channel in thingspeak.com
bhshruthi92 0:4c4c953ccd57 8 #define IP "184.106.153.149" // IP Address of "api.thingspeak.com\"
bhshruthi92 0:4c4c953ccd57 9 #define WIFI_SSID "BHNTG1682GF6C2"
bhshruthi92 0:4c4c953ccd57 10 #define WIFI_PASS "ef8df304"
bhshruthi92 0:4c4c953ccd57 11 #define sendnumber "3178208811"
bhshruthi92 0:4c4c953ccd57 12
bhshruthi92 0:4c4c953ccd57 13 char snd[255],rcv[1000],snd_Data[255];
bhshruthi92 0:4c4c953ccd57 14 float hrt;
bhshruthi92 0:4c4c953ccd57 15
bhshruthi92 0:4c4c953ccd57 16 ESP8266 esp(PTC17, PTC16, 115200); // baud rate for wifi
bhshruthi92 0:4c4c953ccd57 17 Serial pc(USBTX, USBRX);
bhshruthi92 0:4c4c953ccd57 18
bhshruthi92 0:4c4c953ccd57 19 // callback for receiving heartrate values
bhshruthi92 0:4c4c953ccd57 20 void heartrateCallback(float heartrate,void *data)
bhshruthi92 0:4c4c953ccd57 21 {
bhshruthi92 0:4c4c953ccd57 22 printf("Callback: heartrate = %.1f\r\n",heartrate);
bhshruthi92 0:4c4c953ccd57 23 }
bhshruthi92 0:4c4c953ccd57 24
bhshruthi92 0:4c4c953ccd57 25 // Blinky
bhshruthi92 0:4c4c953ccd57 26 DigitalOut led(LED1);
bhshruthi92 0:4c4c953ccd57 27
bhshruthi92 0:4c4c953ccd57 28 // Our sensor as an InterruptIn
bhshruthi92 0:4c4c953ccd57 29 InterruptIn sensor(D2);
bhshruthi92 0:4c4c953ccd57 30
bhshruthi92 0:4c4c953ccd57 31 GroveEarbudSensor earbud(&sensor);
bhshruthi92 0:4c4c953ccd57 32
bhshruthi92 0:4c4c953ccd57 33 void esp_initialize(void);
bhshruthi92 0:4c4c953ccd57 34 void esp_send(void);
bhshruthi92 0:4c4c953ccd57 35
bhshruthi92 0:4c4c953ccd57 36 int main(void)
bhshruthi92 0:4c4c953ccd57 37 {
bhshruthi92 0:4c4c953ccd57 38 pc.baud(115200);
bhshruthi92 0:4c4c953ccd57 39 esp_initialize();
bhshruthi92 0:4c4c953ccd57 40
bhshruthi92 0:4c4c953ccd57 41 // announce
bhshruthi92 0:4c4c953ccd57 42 printf("Grove Earbud Sensor Example v1.0.0\r\n");
bhshruthi92 0:4c4c953ccd57 43
bhshruthi92 0:4c4c953ccd57 44 // allocate the earbud sensor
bhshruthi92 0:4c4c953ccd57 45 printf("Allocating earbud sensor instance...\r\n");
bhshruthi92 0:4c4c953ccd57 46
bhshruthi92 0:4c4c953ccd57 47 // register our callback function
bhshruthi92 0:4c4c953ccd57 48 printf("registering callback...\r\n");
bhshruthi92 0:4c4c953ccd57 49 earbud.registerCallback(heartrateCallback);
bhshruthi92 0:4c4c953ccd57 50
bhshruthi92 0:4c4c953ccd57 51 // begin main loop
bhshruthi92 0:4c4c953ccd57 52 printf("Beginning main loop...\r\n");
bhshruthi92 0:4c4c953ccd57 53 while (true)
bhshruthi92 0:4c4c953ccd57 54 {
bhshruthi92 0:4c4c953ccd57 55 // blink...
bhshruthi92 0:4c4c953ccd57 56 led = !led;
bhshruthi92 0:4c4c953ccd57 57 wait(1);
bhshruthi92 0:4c4c953ccd57 58
bhshruthi92 0:4c4c953ccd57 59 // we can also call directly
bhshruthi92 0:4c4c953ccd57 60 printf("Direct: heartrate = %.1f\r\n", earbud.getHeartRate());
bhshruthi92 0:4c4c953ccd57 61
bhshruthi92 0:4c4c953ccd57 62 }
bhshruthi92 0:4c4c953ccd57 63 }
bhshruthi92 0:4c4c953ccd57 64 void esp_initialize(void)
bhshruthi92 0:4c4c953ccd57 65 {
bhshruthi92 0:4c4c953ccd57 66 pc.printf("Initializing ESP\r\n");
bhshruthi92 0:4c4c953ccd57 67
bhshruthi92 0:4c4c953ccd57 68 pc.printf("Reset ESP\r\n");
bhshruthi92 0:4c4c953ccd57 69 esp.Reset(); //RESET ESP
bhshruthi92 0:4c4c953ccd57 70 esp.RcvReply(rcv, 400); //receive a response from ESP
bhshruthi92 0:4c4c953ccd57 71 wait(2);
bhshruthi92 0:4c4c953ccd57 72
bhshruthi92 0:4c4c953ccd57 73 strcpy(snd,"AT");
bhshruthi92 0:4c4c953ccd57 74 esp.SendCMD(snd);
bhshruthi92 0:4c4c953ccd57 75 pc.printf(snd);
bhshruthi92 0:4c4c953ccd57 76 esp.RcvReply(rcv, 400);
bhshruthi92 0:4c4c953ccd57 77 pc.printf(rcv);
bhshruthi92 0:4c4c953ccd57 78 wait(0.1);
bhshruthi92 0:4c4c953ccd57 79
bhshruthi92 0:4c4c953ccd57 80 strcpy(snd,"AT+CWMODE=1");
bhshruthi92 0:4c4c953ccd57 81 esp.SendCMD(snd);
bhshruthi92 0:4c4c953ccd57 82 pc.printf(snd);
bhshruthi92 0:4c4c953ccd57 83 wait(2);
bhshruthi92 0:4c4c953ccd57 84
bhshruthi92 0:4c4c953ccd57 85 strcpy(snd,"AT+CWJAP=\"");
bhshruthi92 0:4c4c953ccd57 86 strcat(snd,WIFI_SSID);
bhshruthi92 0:4c4c953ccd57 87 strcat(snd,"\",\"");
bhshruthi92 0:4c4c953ccd57 88 strcat(snd,WIFI_PASS);
bhshruthi92 0:4c4c953ccd57 89 strcat(snd,"\"");
bhshruthi92 0:4c4c953ccd57 90
bhshruthi92 0:4c4c953ccd57 91
bhshruthi92 0:4c4c953ccd57 92 esp.SendCMD(snd);
bhshruthi92 0:4c4c953ccd57 93 pc.printf(snd);
bhshruthi92 0:4c4c953ccd57 94 wait(5);
bhshruthi92 0:4c4c953ccd57 95 esp.RcvReply(rcv, 400);
bhshruthi92 0:4c4c953ccd57 96 pc.printf("\n %s \n", rcv);
bhshruthi92 0:4c4c953ccd57 97
bhshruthi92 0:4c4c953ccd57 98 strcpy(snd,"AT+CIPMUX=1");
bhshruthi92 0:4c4c953ccd57 99 esp.SendCMD(snd);
bhshruthi92 0:4c4c953ccd57 100 pc.printf(snd);
bhshruthi92 0:4c4c953ccd57 101 esp.RcvReply(rcv, 400);
bhshruthi92 0:4c4c953ccd57 102 pc.printf("\n %s \n", rcv);
bhshruthi92 0:4c4c953ccd57 103
bhshruthi92 0:4c4c953ccd57 104 }
bhshruthi92 0:4c4c953ccd57 105 void esp_send(void)
bhshruthi92 0:4c4c953ccd57 106 {
bhshruthi92 0:4c4c953ccd57 107 //ESP updates the Status of Thingspeak channel//
bhshruthi92 0:4c4c953ccd57 108
bhshruthi92 0:4c4c953ccd57 109 strcpy(snd,"AT+CIPSTART=");
bhshruthi92 0:4c4c953ccd57 110 strcat(snd,"\"TCP\",\"");
bhshruthi92 0:4c4c953ccd57 111 strcat(snd,IP);
bhshruthi92 0:4c4c953ccd57 112 strcat(snd,"\",80");
bhshruthi92 0:4c4c953ccd57 113
bhshruthi92 0:4c4c953ccd57 114 esp.SendCMD(snd);
bhshruthi92 0:4c4c953ccd57 115 pc.printf("Send\r\n%s",snd);
bhshruthi92 0:4c4c953ccd57 116 esp.RcvReply(rcv, 1000);
bhshruthi92 0:4c4c953ccd57 117 pc.printf("Receive\r\n%s",rcv);
bhshruthi92 0:4c4c953ccd57 118 wait(1);
bhshruthi92 0:4c4c953ccd57 119
bhshruthi92 0:4c4c953ccd57 120 hrt = earbud.getHeartRate();
bhshruthi92 0:4c4c953ccd57 121 pc.printf("Sending this data to thingspeak.com \r \n");
bhshruthi92 0:4c4c953ccd57 122 sprintf(snd,"GET https://api.thingspeak.com/update?api_key=SJYFHXQEDBQ75N91&field1=%f\r\n", hrt);
bhshruthi92 0:4c4c953ccd57 123
bhshruthi92 0:4c4c953ccd57 124 int i=0;
bhshruthi92 0:4c4c953ccd57 125 for(i=0; snd[i]!='\0'; i++);
bhshruthi92 0:4c4c953ccd57 126 i++;
bhshruthi92 0:4c4c953ccd57 127 char cmd[255];
bhshruthi92 0:4c4c953ccd57 128
bhshruthi92 0:4c4c953ccd57 129 sprintf(cmd,"AT+CIPSEND=%d",i); //Send Number of open connection and Characters to send
bhshruthi92 0:4c4c953ccd57 130 esp.SendCMD(cmd);
bhshruthi92 0:4c4c953ccd57 131 pc.printf("Send\r\n%s",cmd);
bhshruthi92 0:4c4c953ccd57 132 while(i<=20 || rcv == ">")
bhshruthi92 0:4c4c953ccd57 133 {
bhshruthi92 0:4c4c953ccd57 134 esp.RcvReply(rcv, 1000);
bhshruthi92 0:4c4c953ccd57 135 wait(100);
bhshruthi92 0:4c4c953ccd57 136 i++;
bhshruthi92 0:4c4c953ccd57 137 }
bhshruthi92 0:4c4c953ccd57 138 pc.printf("Receive\r\n%s",rcv);
bhshruthi92 0:4c4c953ccd57 139
bhshruthi92 0:4c4c953ccd57 140 esp.SendCMD(snd); //Post value to thingspeak channel
bhshruthi92 0:4c4c953ccd57 141 pc.printf("Send\r\n%s",snd);
bhshruthi92 0:4c4c953ccd57 142
bhshruthi92 0:4c4c953ccd57 143 while(i<=20 || rcv == "OK")
bhshruthi92 0:4c4c953ccd57 144 {
bhshruthi92 0:4c4c953ccd57 145 esp.RcvReply(rcv, 1000);
bhshruthi92 0:4c4c953ccd57 146 wait(100);
bhshruthi92 0:4c4c953ccd57 147 i++;
bhshruthi92 0:4c4c953ccd57 148 }
bhshruthi92 0:4c4c953ccd57 149 pc.printf("Receive\r\n%s",rcv);
bhshruthi92 0:4c4c953ccd57 150 }
bhshruthi92 0:4c4c953ccd57 151
bhshruthi92 0:4c4c953ccd57 152