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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38 views

Creating global webserver without port forwarding

I'm setting up a "Smart House" project with Arduino+Esp01F(Serial Communication). But I want to make it global server. For it I use WiFiEsp library. But for it I must Get any port (neither 80 nor 443),...
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13 views

Using ESP32-CAM (with ov2640 camera image sensor) to send image via USB

I was trying to obtain image from ESP32-CAM (with ov2640 camera image sensor). I obtained the image through camera web server by connecting the ESP32-CAM and PC to same wifi network. A USB to TTL ...
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1answer
39 views

Error Compiling sketch for Arduino Uno(ld return 1)

I have got an telnet server with esp8266 + SoftwareSerial+ UNO, and here I want to on led with command ON . will be 1 or 2. It is for recive 1 or 2 numbered pins. And I extract pin from request with ...
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21 views

wemos ESP8266 fastled webmaster slave copies the master

I have been searching for a solution and attempting to make a solution where that a wemos running an existing project consisting of using a web server to control ws2812b lights, the basic code allows ...
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30 views

Why sometimes parsed data is null in WiFiEsp?

I'm setting up web server with args. As host.com/?pin=9. I parsed the response by indexOf and substring functions. In first connection response has been successfully parsed and number has been parsed ...
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29 views

Creating WebServer with 5000 port with AT command(ESP-01f)

I'm setting webserver with toggle led. I want to create global webserver. I`m mean hat use server with global ip. For it I must use port too. global ip/local ip:port. I want to create on 5000 port. I'...
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34 views

How do I properly use the WiFi capabilities of ESP8266?

I am creating a project with an ESP8266 (Arduino IDE) which requires it to serve a webpage to a client. The module will be connected to a WiFi network by default, but when that WiFi network is not ...
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23 views

ESP32 OTAWebUpdater only works on mobile

I'm experiencing something strange. I opened the default ESP32 example "OTAWebUpdater" in the ArduinoIDE and modified just the network part (I created a soft AP instead). The problem is, when I ...
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32 views

Creating an online sign-in wall for ESP8266 [on hold]

I am working on a project where I want to control several settings on a web server on an ESP8266 (using Arduino IDE). The only complication is that I want the user to require a username and password ...
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16 views

WiFiServer Stops After Reconnection to WiFi

In the following code, the Arduino is reconnecting to the WiFi after several loops. The idea is to check and re-establish WiFi connection every 30 minutes or so. However, the WiFiServer seems to ...
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1answer
36 views

Create one server in AP mode and another in station mode

I'm trying to connect one ESP8266 to WiFi as a WebServer in station mode and to another ESP8266 as a server (that has no web pages) in AP mode. The problem is both servers are being created in AP ...
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24 views

connected collar with GPS, temperature and heart rate sensors + microphone

I am taking part in a project as part of a challenge and I'm in charge of the embedded systems part, this is my first time working on a project of this scale. I am looking for a way to wirelessly send ...
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28 views

Connect Arduino and ESP8266 NodeMCU

I want to connect multiple sensors and see their measurements via ESP8266 Web Server. But, the problem is that ESP8266 has only one analog pin and I can't connect multiple sensors to it, so i need to ...
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1answer
31 views

why arduino can not write to server?

i write a code for Arduino + SIM800 for connecting to server. but it don't work! SerialGsm.println("AT+CIPSEND=63\r\n"); delay( 1000 ); receive_message(); SerialGsm.print( "GET http://sasasas.ir.ir/...
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30 views

Sim800L Uploading issues, HTTPACTION returns 0, 302, 701

I'm using the Sim800L module and the NEO6M GPS Module in combination with an Arduino nano to create a simple tracking device. I get the data from the GPS and try to upload it to my site with some ...
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2answers
88 views

ESP8266 Webserver not reachable after 2 minutes from reset

I have a Keyes Espressif ESP8266 NodeMCU, I have two LEDs that I want to control which are connected to the ESP. When I open the webpage http://10.0.0.5/5 after uploading the sketch it works fine. If ...
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1answer
23 views

Change css form color from esp32 if statement

I am fairly new to arduino and ESP though am very familiar with css and javascript. I have an esp webserver that includes a button client.print("<button style='background-color: #F30C0C; color:#...
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1answer
36 views

Webpage values wont update

I've been trying to run the following esp32 LED PWM code to change the LED's brightness, and show the current PWM duty on the webpage, but the PWM values on the webpage won't change until I hit the ...
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33 views

Creating WebServer ip:port on esp8266 module

I creating Clever House with wifi. For this I'm using ESP8266 as module connected to Arduino. They communicate with SoftwareSerial. And there's a problem with global webserver on ESP8266. That I think ...
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1answer
44 views

How to handle a ESP8266 webserver only to the access point?

I'm developing a application that needs to be somewhat secure, so to configure the parameters it handles a GPIO interrupt (from a button) to open a server, that lets you configure it. The problem is ...
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59 views

ESP8266 webserver does not return latest HTTP response

I tried getting a HTTP response from an ESP8266 which is in HTTP server mode, I am getting a response but not the latest one, response is always one command previous to that of my request to the ESP. ...
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1answer
72 views

Mega <> esp8266 comms sending baffling data

I have Wemos Mega-ESP8266 board. I have uploaded a simple WebSocket server on the ESP... #include <ESP8266WiFi.h> #include <WebSocketsServer.h> const char* ssid = "SKYNET"; const ...
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1answer
22 views

HTTP myphp request error RFID

This program is a program which readings of rfid are saved to myphp database. I have a problem when running the code The wifi is connected but when the code doesn't save im assuming that the problem ...
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1answer
151 views

Esp8266 not responding to GET request from Android app created using MIT App Inventor

I hope I am posting this question in the right section. I am making a Smart Home Project for my college semester finals. I am using an Atmega328p microcontroller along with an ESP8266 (Esp 01). The ...
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2answers
118 views

ESP12E Soft WDT reset stack trace leads to libraries

Im using ESP12E DevKit v2 (esp8266 wifi module) board for controlling relays and displaying DHT22 temp,humidity on web server. It runs smoothly when the web client is closed but when i leave the ...
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0answers
161 views

Arduino HTTP post image to external server

I'm trying to send an image from SPIFFS to my external server. When pictures are taken, they are saved into "/pics/" directory within SPIFFS. Ultimately, I'd like to post all the images saved onto "/...
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30 views

Setting up WiFi on NodeMCU with wrong password drops ESP8266WebServer connection [duplicate]

I am trying to build a simple demo with NodeMCU module: NodeMCU opens AP and sets up web server Client connects to this AP, sends payload to web server to setup WiFI on the module and receives ...
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0answers
173 views

Cant get rid of Soft WDT reset using ESP8266

Im using ESP12E DevKit v2 (esp8266 wifi module) board for controlling relays and displaying DHT22 temp,humidity on web server. It runs smoothly but after while i always get a watchdog timer reset. (If ...
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0answers
73 views

Webserver on Arduino Mega with Ethernet Shield

I am working with an official Arduino Mega. I have mounted an officiel Ethernet Shield rev 2. Everything works great, i have wrote a very basic webserver. I wanted to host a bootstrap css file on my ...
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2answers
53 views

Arduino security

My question is how secure can I make an Arduino? The project I am working on would put the Arduino out in the public (school campus inside a trash can to sense how much trash is in it) and I want to ...
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2answers
155 views

My ESP8266 web server is only displaying text, even after ensuring content type is text/HTML

So I just got my two ESP8266/ESP-12E WiFi development boards in the mail as I am trying to set up a few home automation devices in my house. I've gotten much further than I thought I would today, ...
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0answers
30 views

Help with app controlled Arduino sensors [closed]

(I'm a beginner in using Arduino and MIT App Inventor) We have this project (an app-controlled aquaponics system) where our group decided to use an app to control the arduino sensors and then show ...
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1answer
338 views

Arduino IDE + ESP32 Webserver - how to redirect to root after click on button

I'm trying to use ESP32 + Arduino IDE to control a relay. I've started by using the library and the code below. The problem I'm having: after clicking on the button and activating the pin, if the ...
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1answer
91 views

Large(ish) strings failing to send over WiFi101 using WiFiServer

I've based a sketch off the vanilla WiFi101 server examples. If I define a const char array like this: const char HTML_index[] = "<html><head></head><body>test</body>&...
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3answers
91 views

How to assign text stored in a local file to a string at compile time

I'm developing a program that uses the HTML server in the WiFi101 library. My hardware does not have SD card storage so all source html needs to be stored as strings in the sketch at compile time. ...
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1answer
149 views

Display Wireless Temperature Sensor data to Web page by using Serial communication

I am reading from wireless temperature sensor with help of gateway receiver connected to Arduino UNO, using this code I need to display the data of the wireless sensor on the webpage. Any ...
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0answers
50 views

Sensors are not function with ESP8266 WeMos-D1R2

I attached all sensor into the Wemos-D1 for uploading the sensor data to the server. but when I upload the data to the server, it connects to the server but cannot save the data into the database and ...
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0answers
312 views

HTTPS POST method fails in esp32

I was trying to connect with server but, I was unable to post the data. I have added the SSL key to connect with server that is happening but HTTPS POST is not. I tried the same method with http, I am ...
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1answer
701 views

Taking String Input from NodeMCU Webpage and Printing it on Serial Monitor

I've started working with NodeMCU recently. I've very little knowledge about this device and how a website works. I'm trying to take a long string input from a website hosted by NodeMCU, store it on a ...
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1answer
863 views

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
136 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
71 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 ...
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1answer
134 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
191 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 ...
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1answer
270 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 ...
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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 #...
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1answer
137 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
804 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
742 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 (...
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1answer
254 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. ...