Eduvance SIT2017 / Mbed 2 deprecated ESP8266_Node-Red_localPhant_KL25Z

Wifi data logging on local phant using Node-red

Dependencies:   ESP8266 mbed

Fork of ESP8266_LocalPhant_KL25Z by Rushab Karani

main.cpp@3:5ba1cb5e6613, 2017-03-30 (annotated)

Committer:
rushabkarani
Date:
Thu Mar 30 12:31:19 2017 +0000
Revision:
3:5ba1cb5e6613
Parent:
2:817794b2f733 
Esp8266 With NODE-RED

Who changed what in which revision?

UserRevisionLine numberNew contents of line
SIT2016 0:8ca71ccb52db 1 #include "mbed.h"
SIT2016 0:8ca71ccb52db 2 #include "ESP8266.h"
SIT2016 0:8ca71ccb52db 3
SIT2016 0:8ca71ccb52db 4 Serial pc(USBTX,USBRX);
SIT2016 1:2012c31aee1b 5
SIT2016 1:2012c31aee1b 6 //POT sensor
SIT2016 1:2012c31aee1b 7 AnalogIn pot(PTB0);
rushabkarani 3:5ba1cb5e6613 8 AnalogIn ldr(PTB1);
SIT2016 1:2012c31aee1b 9
SIT2016 1:2012c31aee1b 10 //wifi UART port and baud rate
SIT2016 1:2012c31aee1b 11 ESP8266 wifi(PTE0, PTE1, 115200);
SIT2016 1:2012c31aee1b 12
SIT2016 1:2012c31aee1b 13 //buffers for wifi library
SIT2016 1:2012c31aee1b 14 char snd[255],resp[1000];
SIT2016 1:2012c31aee1b 15 char http_cmd[300], comm[300];
SIT2016 1:2012c31aee1b 16
rushabkarani 3:5ba1cb5e6613 17 int timeout = 5000; //timeout for wifi commands
SIT2016 1:2012c31aee1b 18
SIT2016 1:2012c31aee1b 19 //SSID and password for connection
rushabkarani 3:5ba1cb5e6613 20 #define SSID "eduvanceAP"
rushabkarani 3:5ba1cb5e6613 21 #define PASS "winteriscoming"
SIT2016 1:2012c31aee1b 22
SIT2016 1:2012c31aee1b 23 //Remote IP
rushabkarani 3:5ba1cb5e6613 24 #define IP "192.168.0.22"
SIT2016 1:2012c31aee1b 25
SIT2016 1:2012c31aee1b 26 //ldrvalue global variable
rushabkarani 3:5ba1cb5e6613 27 float ldrval = 0;
rushabkarani 3:5ba1cb5e6613 28 float potval = 0;
SIT2016 1:2012c31aee1b 29
SIT2016 1:2012c31aee1b 30 //Public and private keys for phant
rushabkarani 3:5ba1cb5e6613 31 //char* Public_Key = "eaWkxgdlQZszLEDKpy6OFeDeO8x";
rushabkarani 3:5ba1cb5e6613 32 //char* Private_Key = "25xqpAeBmzSml4Yjpr05Hj3jOBq";
SIT2016 0:8ca71ccb52db 33
SIT2016 1:2012c31aee1b 34 //Wifi init function
SIT2016 1:2012c31aee1b 35 void wifi_initialize(void){
SIT2016 1:2012c31aee1b 36
SIT2016 1:2012c31aee1b 37 pc.printf("******** Resetting wifi module ********\r\n");
SIT2016 1:2012c31aee1b 38 wifi.Reset();
SIT2016 1:2012c31aee1b 39
SIT2016 1:2012c31aee1b 40 //wait for 5 seconds for response, else display no response receiveed
rushabkarani 3:5ba1cb5e6613 41 if (wifi.RcvReply(resp, 8000))
SIT2016 1:2012c31aee1b 42 pc.printf("%s",resp);
SIT2016 1:2012c31aee1b 43 else
SIT2016 1:2012c31aee1b 44 pc.printf("No response");
SIT2016 1:2012c31aee1b 45
SIT2016 1:2012c31aee1b 46 pc.printf("******** Setting Station mode of wifi with AP ********\r\n");
SIT2016 1:2012c31aee1b 47 wifi.SetMode(1); // set transparent mode
SIT2016 1:2012c31aee1b 48 if (wifi.RcvReply(resp, timeout)) //receive a response from ESP
SIT2016 1:2012c31aee1b 49 pc.printf("%s",resp); //Print the response onscreen
SIT2016 1:2012c31aee1b 50 else
SIT2016 1:2012c31aee1b 51 pc.printf("No response while setting mode. \r\n");
SIT2016 1:2012c31aee1b 52
SIT2016 1:2012c31aee1b 53 pc.printf("******** Joining network with SSID and PASS ********\r\n");
SIT2016 1:2012c31aee1b 54 wifi.Join(SSID, PASS);
SIT2016 1:2012c31aee1b 55 if (wifi.RcvReply(resp, timeout))
SIT2016 1:2012c31aee1b 56 pc.printf("%s",resp);
SIT2016 1:2012c31aee1b 57 else
SIT2016 1:2012c31aee1b 58 pc.printf("No response while connecting to network \r\n");
SIT2016 1:2012c31aee1b 59
SIT2016 1:2012c31aee1b 60 pc.printf("******** Getting IP and MAC of module ********\r\n");
SIT2016 1:2012c31aee1b 61 wifi.GetIP(resp);
SIT2016 1:2012c31aee1b 62 if (wifi.RcvReply(resp, timeout))
SIT2016 1:2012c31aee1b 63 pc.printf("%s",resp);
SIT2016 1:2012c31aee1b 64 else
SIT2016 1:2012c31aee1b 65 pc.printf("No response while getting IP \r\n");
SIT2016 1:2012c31aee1b 66
SIT2016 1:2012c31aee1b 67 pc.printf("******** Setting WIFI UART passthrough ********\r\n");
SIT2016 1:2012c31aee1b 68 wifi.setTransparent();
SIT2016 1:2012c31aee1b 69 if (wifi.RcvReply(resp, timeout))
SIT2016 1:2012c31aee1b 70 pc.printf("%s",resp);
SIT2016 1:2012c31aee1b 71 else
SIT2016 1:2012c31aee1b 72 pc.printf("No response while setting wifi passthrough. \r\n");
SIT2016 2:817794b2f733 73 wait(1);
SIT2016 1:2012c31aee1b 74
SIT2016 1:2012c31aee1b 75 pc.printf("******** Setting single connection mode ********\r\n");
SIT2016 1:2012c31aee1b 76 wifi.SetSingle();
SIT2016 1:2012c31aee1b 77 wifi.RcvReply(resp, timeout);
SIT2016 1:2012c31aee1b 78 if (wifi.RcvReply(resp, timeout))
SIT2016 1:2012c31aee1b 79 pc.printf("%s",resp);
SIT2016 1:2012c31aee1b 80 else
SIT2016 1:2012c31aee1b 81 pc.printf("No response while setting single connection \r\n");
SIT2016 1:2012c31aee1b 82 wait(1);
SIT2016 2:817794b2f733 83 }
SIT2016 2:817794b2f733 84
SIT2016 2:817794b2f733 85 void wifi_send(void){
SIT2016 1:2012c31aee1b 86
SIT2016 1:2012c31aee1b 87 pc.printf("******** Starting TCP connection on IP and port ********\r\n");
rushabkarani 3:5ba1cb5e6613 88 wifi.startTCPConn(IP, 1880); //cipstart
SIT2016 1:2012c31aee1b 89 wifi.RcvReply(resp, timeout);
SIT2016 1:2012c31aee1b 90 if (wifi.RcvReply(resp, timeout))
SIT2016 1:2012c31aee1b 91 pc.printf("%s",resp);
SIT2016 1:2012c31aee1b 92 else
SIT2016 1:2012c31aee1b 93 pc.printf("No response while starting TCP connection \r\n");
SIT2016 1:2012c31aee1b 94 wait(1);
SIT2016 1:2012c31aee1b 95
SIT2016 1:2012c31aee1b 96 //create link
rushabkarani 3:5ba1cb5e6613 97 sprintf(http_cmd,"/log?pot=%0.2f&ldr=%0.2f",potval,ldrval);
SIT2016 2:817794b2f733 98 pc.printf(http_cmd);
SIT2016 1:2012c31aee1b 99
SIT2016 1:2012c31aee1b 100 pc.printf("******** Sending URL to wifi ********\r\n");
SIT2016 1:2012c31aee1b 101 wifi.sendURL(http_cmd, comm); //cipsend and get command
SIT2016 1:2012c31aee1b 102 if (wifi.RcvReply(resp, timeout))
SIT2016 1:2012c31aee1b 103 pc.printf("%s",resp);
SIT2016 1:2012c31aee1b 104 else
SIT2016 1:2012c31aee1b 105 pc.printf("No response while sending URL \r\n");
SIT2016 1:2012c31aee1b 106
SIT2016 1:2012c31aee1b 107 //wifi.SendCMD("AT+CIPCLOSE"); //Close the connection to server
SIT2016 1:2012c31aee1b 108 //wifi.RcvReply(resp, timeout);
SIT2016 1:2012c31aee1b 109 //pc.printf("%s", resp);
SIT2016 1:2012c31aee1b 110 }
SIT2016 1:2012c31aee1b 111
SIT2016 0:8ca71ccb52db 112 int main () {
SIT2016 0:8ca71ccb52db 113
SIT2016 1:2012c31aee1b 114
SIT2016 1:2012c31aee1b 115 wifi_initialize();
SIT2016 1:2012c31aee1b 116
SIT2016 0:8ca71ccb52db 117 while (1) {
rushabkarani 3:5ba1cb5e6613 118 potval = pot.read();
rushabkarani 3:5ba1cb5e6613 119 ldrval = ldr.read();
rushabkarani 3:5ba1cb5e6613 120 pc.printf("Potentiometer potvalue=%.3f & ldrvalue=%.3f\r\n",potval,ldrval);
SIT2016 1:2012c31aee1b 121
SIT2016 1:2012c31aee1b 122 wifi_send();
SIT2016 1:2012c31aee1b 123 wait(3);
SIT2016 0:8ca71ccb52db 124 }
SIT2016 0:8ca71ccb52db 125 }
SIT2016 0:8ca71ccb52db 126
SIT2016 0:8ca71ccb52db 127