arduino send data to web page using esp 01 . Please help , noob here

Projects Programming
1

Jul 26, 2018, 07:50 am
Help me anyone here , Ip address wasnt shown in this code:
I got a code I used here :

#include<SoftwareSerial.h>
SoftwareSerial comm(12,13); //setting Tx and Rx pins

String server=""; //variable for sending data to webpage
boolean No_IP=false; //variable to check for ip Address
String IP=""; //variable to store ip Address
char temp1='0';

int a=0;
int b=0;

String str1="

I am Arduino

"; //String to display on webpage
String str2="

Data Received Successfully.....

"; //another string to display on webpage

void setup()
{
Serial.begin(115200);
comm.begin(115200);
wifi_init();
Serial.println("System Ready..");
}

void loop()
{
b=0;
Serial.println("Refresh Page");
while(b<1000)
{
b++;
while(comm.available())
{
if(comm.find("0,CONNECT"))
{
Serial.println("Starting");
sendToServer();
Serial.println("Finished");
delay(1000);
}
}
delay(1);
}
}

void findIp(int time1) //check for the availability of IP Address
{
int time2=millis();
while(time2+time1>millis())
{
while(comm.available()>0)
{
if(comm.find("IP has been read"))
{
No_IP=true;
}
}
}
}

void showIP()//Display the IP Address
{
IP = "";
char ch = 0;
while(1)
{
comm.println("AT+CIFSR");
while(comm.available()>0)
{
if(comm.find("STAIP,"))
{
delay(1000);
Serial.print("IP Address:");
while(comm.available()>0)
{
ch=comm.read();
if(ch=='+')
break;
IP+=ch;
}
}
if(ch=='+')
break;
}
if(ch=='+')
break;
delay(1000);
}
Serial.print(IP);
Serial.print("Port:");
Serial.println(80);
}

void establishConnection(String command, int timeOut) //Define the process for sending AT commands to module
{
int q=0;
while(1)
{
Serial.println(command);
comm.println(command);
while(comm.available())
{
if(comm.find("OK"))
q=8;
}
delay(timeOut);
if(q>5)
break;
q++;
}
if(q==8)
Serial.println("OK");
else
Serial.println("Error");
}

void wifi_init() //send AT commands to module
{
establishConnection("AT",100);
establishConnection("AT+CWMODE=3",500);
establishConnection("AT+CWQAP",500);
establishConnection("AT+RST",5000);
findIp(500);
if(!No_IP)
{
Serial.println("Connecting Wifi....");
establishConnection("AT+CWJAP="CHINA","gumiho24"",7000); //provide your WiFi username and password here
}
else
{
}
Serial.println("Wifi Connected");
showIP();
establishConnection("AT+CIPMUX=1",1000);
establishConnection("AT+CIPSERVER=1,80",1000);
}

void sendData(String server1)//send data to module
{
int p=0;
while(1)
{
unsigned int l=server1.length();
Serial.print("AT+CIPSEND=0,");
comm.print("AT+CIPSEND=0,");
Serial.println(l+2);
comm.println(l+2);
delay(1000);
Serial.println(server1);
comm.println(server1);
while(comm.available())
{
Serial.print(Serial.read());
if(comm.find("OK"))
{
p=11;
break;
}
}
if(p==11)
break;
delay(100);
}
}

void sendToServer()//send data to webpage
{
server = "

Welcome to Data Receiving from Arduino

";
sendData(server);
server=str1;
server+=str2;
sendData(server);
delay(5000);
comm.println("AT+CIPCLOSE=0");
}

///OUTPUT
AT
AT
OK
AT+CWMODE=3
AT+CWMODE=3
OK
AT+CWQAP
AT+CWQAP
OK
AT+RST
AT+RST
OK
Connecting Wifi....
AT+CWJAP="CHINA","gumiho24"
AT+CWJAP="CHINA","gumiho24"
AT+CWJAP="CHINA","gumiho24"
OK
Wifi Connected
** BUT I couldnt get the ip address of my the wifi**

2

No sure where you got that code from but it’s not great...

If you read French (or use google translate) may be you can get something out of a small tutorial I wrote on using ESP-01

Using software serial at 115200 bauds is also likely going to fail you if your uno is busy doing other stuff as well. Use a mega with more than one hardware serial or go for a MKR1000 type of Wemos D1 where you have WiFi embedded directly at higher level