ESP8266 Community Forum

- Tue Sep 20, 2016 9:16 am #55422 I am trying to read a short text page of csv data from a web page using an ESP-01 and an Arduino.
I am not trying any libraries, I have been unable to make them work.
Is it true that the ESP-01 will not work as a web client?
I am using version 1.3.0.0 SDK 2.0.0 of the firmware.
The device connects fine to my network, and opens the connection OK, but I cannot get the data from the page.
Here is the relevent code:

Code: Select allvoid getData() {
  String cmd = "AT+CIPSTART=\"TCP\",\"";
  cmd += DST_IP;
  cmd += "\",80\r\n";
  Serial.println(cmd);
  dbgSerial.println(cmd);
  delay(2000);
  if (Serial.find("Error")) return;
  cmd = "GET /cr200Data.txt HTTP/1.1\r\n";
  cmd = cmd + "Host: xx.xx.xx.xx\r\n\r\n";
  Serial.print("AT+CIPSEND=");
  Serial.println(cmd.length());
  Serial.write('\r\n'); // Append return to commands.
  delay(2000);
  //while (Serial.available()) {
  //  dbgSerial.write(Serial.read());
  //}
if (Serial.find(">"))
{
  dbgSerial.print(">");
  Serial.println(cmd);
  dbgSerial.println(cmd);
  delay(5000);
  if (Serial.find("+IPD")) {
    dbgSerial.println("+IPD found");
  }
  while (Serial.available())
  {
    char c = Serial.read();
    dbgSerial.write(c);
    if (c == '\r') dbgSerial.print('\n');
  }
  dbgSerial.println("====");
  delay(1000);
} else {
  dbgSerial.write(Serial.read());
  dbgSerial.println("connect timeout");
  delay(2000);
}
Serial.println("AT+CIPCLOSE\r\n");
dbgSerial.println("End of getData");
}


and here is the output:

Code: Select allAT+CIPSTART="TCP","xx.xx.xx.xx",80
>GET /cr200Data.txt HTTP/1.1
Host: xx.xx.xx.xx
====
End of getData


What am I doing wrong? I should have +IPD,some_number:data I think.
Many thanks