Unable to connect to a local webserver
Posted: Tue Mar 02, 2021 10:41 amHello everyone!
I'm trying to use and ESP8266 module with an Arduino to turn on/off a Philips hue light bulb. I've already set the Philips account and it work perfectly with the browser. Now I've tried to do the same thing with that HW configuration but I always fail to connect to the bridge. So I've used a NodeMCU board to simulate a webserver to see if the problem is the bridge but again with browser works and with the board I cannot connect to the server. At the moment I have switched the role so I'm running the web server on the Arduino+ESP and the client on my NodeMCU in order to use the ESP8266HTTPClient.h and ESP8266WiFi.h libraries that are more powerful than WiFiEsp.h to do http request.
Ah, if I tried the example to connect to the Arduino page to get the logo in ASCII the sketch works perfectly so I think that the problem is to establish the connection locally.
About code, I avoid to write the webserver because I have change anything.
Instead the important part about the client is this:
I always get Unable to connect to server. I've also tried to use just the IP without http://.
Any help?
Thanks in advance!
I'm trying to use and ESP8266 module with an Arduino to turn on/off a Philips hue light bulb. I've already set the Philips account and it work perfectly with the browser. Now I've tried to do the same thing with that HW configuration but I always fail to connect to the bridge. So I've used a NodeMCU board to simulate a webserver to see if the problem is the bridge but again with browser works and with the board I cannot connect to the server. At the moment I have switched the role so I'm running the web server on the Arduino+ESP and the client on my NodeMCU in order to use the ESP8266HTTPClient.h and ESP8266WiFi.h libraries that are more powerful than WiFiEsp.h to do http request.
Ah, if I tried the example to connect to the Arduino page to get the logo in ASCII the sketch works perfectly so I think that the problem is to establish the connection locally.
About code, I avoid to write the webserver because I have change anything.
Instead the important part about the client is this:
Code: Select all
....
WiFiClient client;
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
WiFi.begin(ssid, password);
Serial.println("Connecting to WiFi");
Serial.println(WiFi.localIP());
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.print(".");
}
Serial.println("Connected to the WiFi network");
.....
if(client.connect("http://192.168.1.128", 80)){
client.print("GET ");
client.println(" HTTP/1.1");
client.stop();
} else {
Serial.println("Unable to connect to server");
}
I always get Unable to connect to server. I've also tried to use just the IP without http://.
Any help?
Thanks in advance!