- Sun Nov 03, 2019 5:22 pm
#84411
I have just flashed a sketch that has been working unchanged a couple of months ago onto my Wemos D1 mini and I observe that it breaks the connection with client right after it responds with HTTP 200 (OK).
Here's the full code:
and here's what the console with all debugging info says upon opening the IP address in web browser:
The web browser says "Connection interrupted, try again".
Now, I am more than sure this worked before. After some time I have installed the newer Arduino IDE, downloaded the boards definitions and that's pretty much all.
When I try to [tt]wget 192.168.0.2[/tt] I get:
but the index.html file DOES contain the desired HTTP response:
Do you have any idea what is wrong? I have checked the router config, I have even set up another AP on my Android phone and repeated all steps with the very same results.
I have used Arduino 1.8.1, which I believe was close to what I was using in the past, still the same....
Here's the full code:
Code: Select all
#include <ESP8266WiFi.h>
const char* ssid = "******";
const char* password = "******";
WiFiServer server(80);
void setup()
{
Serial.begin(115200);
Serial.println();
Serial.printf("Connecting to %s ", ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println(" connected");
server.begin();
Serial.printf("Web server started, open %s in a web browser\n", WiFi.localIP().toString().c_str());
}
// prepare a web page to be send to a client (web browser)
String prepareHtmlPage()
{
String htmlPage =
String("HTTP/1.1 200 OK\r\n") +
"Content-Type: text/html\r\n" +
"Connection: close\r\n" + // the connection will be closed after completion of the response
"\r\n" +
"<!DOCTYPE HTML>" +
"<html>TEST</html>" +
"\r\n";
return htmlPage;
}
void loop()
{
WiFiClient client = server.available();
// wait for a client (web browser) to connect
if (client)
{
Serial.println("\n[Client connected]");
while (client.connected())
{
// read line by line what the client (web browser) is requesting
if (client.available())
{
String line = client.readStringUntil('\r');
Serial.print(line);
// wait for end of client's request, that is marked with an empty line
if (line.length() == 1 && line[0] == '\n')
{
client.println(prepareHtmlPage());
break;
}
}
}
delay(1); // give the web browser time to receive the data
// close the connection:
client.stop();
Serial.println("[Client disonnected]");
}
}and here's what the console with all debugging info says upon opening the IP address in web browser:
Code: Select all
Connecting to ***** ....... connected
Web server started, open 192.168.0.102 in a web browser
:ur 1
WS:dis
:del
WS:ac
:ref 1
WS:av
:ref 2
:ur 2
[Client connected]
:rn 338
GET / HTTP/1.1
Host: 192.168.0.102
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
DNT: 1
Connection: keep-alive
Upgrade-Insecure-Requests: 1
:wr 97 0
:wrc 97 97 0
:wr 2 0
:wrc 2 2 0
:ack 97
:ack 2
:close
[Client disonnected]
:ur 1
WS:dis
:delThe web browser says "Connection interrupted, try again".
Now, I am more than sure this worked before. After some time I have installed the newer Arduino IDE, downloaded the boards definitions and that's pretty much all.
When I try to [tt]wget 192.168.0.2[/tt] I get:
Code: Select all
wget 192.168.0.102
--2019-11-03 21:49:13-- http://192.168.0.102/
Connecting to 192.168.0.102:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: 'index.html'
index.html [ <=> ] 36 --.-KB/s in 0.001s
2019-11-03 21:49:13 (28.2 KB/s) - Read error at byte 36 (Connection reset by peer).Retrying.
--2019-11-03 21:49:14-- (try: 2) http://192.168.0.102/
Connecting to 192.168.0.102:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: 'index.html'
index.html [ <=> ] 36 --.-KB/s in 0.001s
2019-11-03 21:49:14 (29.4 KB/s) - Read error at byte 36 (Connection reset by peer).Retrying.
but the index.html file DOES contain the desired HTTP response:
Code: Select all
$ cat index.html
<!DOCTYPE HTML><html>TEST</html>
Do you have any idea what is wrong? I have checked the router config, I have even set up another AP on my Android phone and repeated all steps with the very same results.
I have used Arduino 1.8.1, which I believe was close to what I was using in the past, still the same....
