Questions tagged [web-server]

A web-server is a system which delivers data such as web-pages to a client system.

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How to allow cross-domain requests on ESP8266WebServer

I am using a Raspberry Pi running Chrome (handling the user interface) and connecting via ajax to an Arduino D1 compatible using the IP address as follows: $.ajax({ type: "GET", ...
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1answer
157 views

ESP8266-01 wdt reset after uploading code

I'm using code from here: ESP8266 example: Wi-Fi Access point, static IP, web-server and remote GPIO control. Everything running ok this morning, but now I don't know why wasn't working... This is ...
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1answer
86 views

How to connect ESP8266-01 (AT-commands) to its web server using AJAX

I am just new on using AJAX in web server, I got an error on declaring "server" I am confused about this because I just used only a AT commands to used the ESP8266-01 (wifi-module) I hope you can help ...
0
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1answer
164 views

Fetching txt file's contents from a webhost using esp8266 [closed]

I am trying to access a txt file in my website and fetch its contents that is hosted by 000webhost. I used this code: void sendGET() //client function to send/receive GET request data. { WiFiClient ...
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1answer
262 views

esp8266 WiFi Cannot Connect to a PHP Server

I am using a magnetic float switch sensor to monitor water level in a tank. I am using a ESP8266 board. I am trying to send the data collected by it to a php page in a host called "weris.link". I've ...
0
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1answer
316 views

ESP8266WebServer how to parse Json payload in post request that is bigger than the ram

I need to post a big json to the nodemcu server which would be bigger than the ram's size I am using esp8266werserver and arduinojson libraries. I know how to use arduinojson to parse huge json ...
0
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1answer
52 views

I have the code printing the data I need but don't know how to connect the data on ESP8266 IP web server

#include "DHT.h" #include "NewPing.h" #include <SoftwareSerial.h> #define DEBUG true SoftwareSerial esp8266(11,10); #define DHTPIN 2 // DHT-11 Output Pin connection #...
2
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1answer
161 views

Are there any Wi-Fi modules for the Arduino Uno that may connect to an external Wi-Fi Antenna?

I have an Arduino Uno I need to connect to Wi-Fi to make HTTP POST Requests to a Raspberry Pi Web Server. The Arduino is located only about 30 feet from the AP, but there is a brick wall in the line ...
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1answer
1k views

How to HTTP post a data to Node express API from a Arduino esp8226?

I am HTTP posting a data to this web API https://morning-cliffs-85779.herokuapp.com/api/users from an Arduino connected to esp8226. I am using the wifiesp library to HTTP_POST data. The REST APIs are ...
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1answer
1k views

How do I get the request params from a ESPAsyncWebServer?

I currently have the following code server.on("/on", HTTP_POST, [](AsyncWebServerRequest *request) { Serial.println("ON hit."); String message; Serial.println(request->url()); if (...
1
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1answer
292 views

How to establish a connection between an Arduino and a web server via ESP8266 [duplicate]

I'm working on a IOT project where three or more IOT device communicates with a web server. The IoT device will have Arduino UNO which is connected to a ESP8266 so internet access is available. ...
0
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1answer
608 views

Problem with html code in ESP8266 WebServer

Here I have a small problem: I have an ESP8266, to which I have connected a matrix of LEDs to move text (the array of LEDs is made with the tape of LEDs addressable ws2812); when you turn on the ...
0
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2answers
1k views

Creating a Web Interface for ESP32 [closed]

I am working on a project that involves moving various servos and lights and I need a good UI to work with the device. I've previously used Blynk, which worked very well but I didn't like some of the ...
0
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1answer
153 views

Is there a real alternative now to using GSM for data sending?

I would like to create an Arduino system that sends the temperature in a place outdoors to a server. I've read in Internet forums that there might be alternatives to GSM and GPRS technology for ...
0
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1answer
293 views

Replying with a html page in HTTP Web Server using esp01 and ArduinoIDE

Now there are many ways to reply with a webpage content to a user who is accessing the web server, But Keeping in mind to use as less space as possible, I was trying something new, Since i didnt got ...
0
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1answer
310 views

Updating Server using ESp8266 with Direction Button Pressed IN

I've connected a 5-way tactile switch to a ESP8266 module and am using the Arduino IDE to create an automatically updating web server that displays the direction that the button is pressed in when ...
0
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0answers
2k views

Arduino ESP8266 Webserver SD

I connect Micro SD card adapter to my esp8266. I uploaded the SD webserver example sketch into the esp8266, everything works perfectly once I created index.htm, now I add LED to digital pin 4, now, ...
0
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1answer
538 views

Problem with nodemcu esp-01 can't connect to wifi

i've been working on a project that im using an esp8266 nodemcu-01 as described in the title, and i've been having some headache with this module, first because after searching i figured out that the ...
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0answers
464 views

Exporting an html for esp8266

EDIT: Added "web page source" ("In the end", :D ) (Please, sorry if this question isn't in the right place, feel free to move it to that place) Here I have a problem: In my house I have a self-...
0
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1answer
3k views

Creating a webserver on a Wemos D1 mini pro

I am trying to put a web server on my Wemos D1 mini pro. I am using this example for the Arduino code: https://github.com/wemos/Arduino_D1/blob/master/doc/esp8266wifi/server-examples.rst #include &...
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1answer
71 views

how to establish a connection between an arduino and a web server? [closed]

I want to establish a connection between my arduino mega ( which is connected to an ethernet shield so internet access is available) to a web server. Any idea how the code should be? I searched for ...
0
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2answers
193 views

if two arduinos are connected by I2C and one of them is using an ethernet shield, does that grant both of them access to the internet?

i have two arduino mega and they send data to each other by an I2C connection. But one of those arduinos is connected to an ethernet shield which allows it to send data to a web server. Being both ...
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0answers
1k views

Sending data from webserver to Arduino

Hello Arduino enthusiasts! I've been working on a keypad lock system for school lately and I need some advice.Basically, my code checks if the entered passcode is the same than a predefined passcode ...
0
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1answer
438 views

Sending dynamic data to webserver

I am trying to send data to a php file via http GET method. I am able to send static data but I am unable to send dynamic data. #include <SoftwareSerial.h> SoftwareSerial gprsSerial(9, 10); ...
0
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1answer
227 views

GSM library_ all examples ar working except GPRS?

i am using arduino uno and sim808. i connected the sim808 to pins 2,3 on arduino uno and used GSM library. i tested all examples: make and receive a call or messages. the part of GPRS initialization ...
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1answer
1k views

ESP8266 - Webserver not working in loop

I have simple example, where in loop is called webServer to handle clients and also text drawing on display. The thing is that webServer is not responding, but when I remove second part of loop - ...
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1answer
2k views

Connect Arduino to Socket IO Webserver via Esp8266

As part of a project I want to receive data on my arduino uno via a sensor, which is working fine. This data should be sent to a webserver where a node js with socket io is running. Therefore i bought ...
0
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1answer
550 views

How to connect an Arduino via an ethernet cable to a laptop directly?

Maybe a silly question, because it is a usual topic, but I have a problem with my Arduino Leonardo ETH. I want to create a web server on the Arduino with the example sketch File > Examples > ...
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1answer
360 views

Rubik Cube Solver (Program Help!) [closed]

I am Working on the final Year Project, The title says it all. Before I explain my project I would like to state that I'm very much interested in the project not because of the deadline but rather ...
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1answer
3k views

HTTPS with ESP8266WebServer?

I see many ESP8266HTTPClient examples, pasting in a fingerprint from an outside website, but I want to host an html page from the ESP8266 in AP mode using HTTPS. Judging by the lack of examples, and ...
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1answer
5k views

How to pass JsonObject from ArduinoJson to ESP8266WebServer object?

I am learning the ArduinoJson.h library and creating jsonOject: JsonObject& prepareResponse(JsonBuffer& jsonBuffer) { JsonObject& root = jsonBuffer.createObject(); JsonArray& ...
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0answers
46 views

checking if user is opening root entry point of the IP address on esp8266 webserver

I am trying to open load a webpage from ESP8266 that displays temperature and humidity of my room if I only type root URL:192.168.1.89 GET / HTTP/1.1 Host: 192.168.1.89 Connection: keep-alive Upgrade-...
0
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1answer
456 views

Why do GPS coordinates fail to save on MySQL database using SIM900?

My project is a vehicle tracking system. I'm using a NEO-6M for GPS and a SIM900 for GPRS. I want to send the GPS coordinates to a MySQL database. I've tested the GPS and it's working well. I've ...
0
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1answer
269 views

ESP8266 sketch worked a few times but now doesn't seem to run

When I flash my code: /* Create a WiFi access point and provide a web server on it. Author: Lucio A. Rocha Last Update: 21 Aug 2016 */ #include <ESP8266WiFi.h> #include <WiFiClient.h&...
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2answers
124 views

Stability issue with webserver and smartmeter logging

In the past few months I have successfully logged the data from the power and gas meter in my house to a remote web server. Now I try to add the ability to enable and disable my doorbell over the ...
0
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1answer
611 views

Linux SSH command for Arduino Console

I have a Leonardo with a Yun shield, and I would like to be able to control the arduino with a windows form app, but thats besides the point for now at least. Currently, I am using putty and the ...
0
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1answer
324 views

Transfer byte-buffer with ENC28J60

How do I transfer a series of byte[256]-buffers to a server with an ENC28J60 Ethernet adapter? I get blocks of uint8_t from an Arducam camera module and I'd like to transfer them to a host. Does ...
1
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1answer
687 views

Wemos D1 mini freezing after a few minutes

I´m using a Wemos D1 mini board to control a RGB LED Strip and programmed a simple code with the Arduino IDE. The Wemos conects to my Internet just fine and with the IP adress I can change the RGB ...
0
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1answer
2k views

ESP8266 cannot read POST parameters

I'm working on a simple REST server. I made method to handle http://<esp8266_IP>/test. The GET method works like a charm and I got the response. Then I tried to send a POST with a JSON data (I ...
0
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1answer
2k views

Error 400. The request has an invalid header name ESP8266 (HTTP-POST)

I'm trying to send a http post to my server from an esp8266-Wifi (I use the ESP8266 library) I check all my http post format, and I guess is okay... but at the response, the monitor serial answer me ...
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0answers
7k views

ESP32 in Arduino-IDE with FS.h and SPIFFS

I'm working on a webserver on ESP32 in Arduino IDE and would like to load an html-file. Tried to use SPIFFS.open from the library FS.h from github. Errormessage says SPIFFS was not declared in this ...
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2answers
688 views

WeMOS creating soft access point from old code even when new code doesn't have it

In the past I uploaded the code below: #include <ESP8266WiFi.h> #include <WiFiClient.h> #include <ESP8266WebServer.h> #include <DHT.h> #define DHTTYPE DHT22 // DHT 11 #...
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1answer
403 views

Arduino sim900a GPRS POST method asp.net [closed]

Post method is run perfect using postman. error while post the data on server using arduino sim900a module gprs. Arduino code mySerial.println("AT+CGATT?"); delay(100); ShowSerialData(); ...
0
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0answers
2k views

WiFiESP constantly losing connection

I am working on a traffic light with a ESP8266-01 wifi module on an Arduino. The wifi card should act as a server and wait for a request to come in at /R (red), /Y (yellow), /G (green) or /O (off) and ...
2
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0answers
224 views

Arduino UNO WiFi RestServer returning “not found”

I'm trying to run RestServer on my Arduino UNO WiFi, and I'm currently using the tutorial from Arduino: http://www.arduino.org/learning/tutorials/boards-tutorials/restserver-and-restclient Everything ...
3
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2answers
1k views

Connect Arduino Uno to video camera's web Server via Ethernet (not working)

I work with cameras in the film and TV industry. A project I have just started tinkering around with is building an Arduino Uno-based box that would automatically collect the metadata (settings, etc.) ...
0
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2answers
413 views

Connect my Arduinos to central server, despite different IP adresses

Community, A team of friends just built, with an Arduino UNO, a system where one can open a door lock from the internet. The Arduino UNO has an Ethernet Module (ENC28J60). When the command prompts, ...
1
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0answers
2k views

Load website from SD card

I combined two different codes together, a captive portal and a SD card web server. I encountered a problem which the website in the SD card doesn't load when I connect to the AP (captive portal page)....
2
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2answers
7k views

'content' is not captured

I try to make a variable that can be modified from the server, using and ESP8266. #include <ESP8266WiFi.h> #include <WiFiClient.h> #include <ESP8266WebServer.h> #include <...
0
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1answer
693 views

Arduino connection websocket always fails

I am using the Arduino Websocket Client library to connect my Arduino Uno to a Socket.IO server. But the connection always returns 0 (fail) after the handshake. Anyone has used this library before? ...