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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5answers
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Web Server Options

I want to give my project a simple web GUI to change config options. I know I could get a shield and write some horrible HTML in C but I'm wondering if there is a better way. Is there another IC I ...
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2answers
4k views

Arduino WiFIWebSever - why client.println()?

I need to modify the WiFiWebServer example on the Arduino website but I am having some trouble understanding the code. I am hoping to get some advice from the community on the client-server ...
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2answers
1k views

Arduino Yun - Problem with bridge and client

I'm using this simple code #include <Bridge.h> #include <YunServer.h> #include <YunClient.h> YunServer server; void setup() { Serial.begin(9600); Bridge.begin(); server....
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3answers
897 views

arduino webserver serves single web page to WAN/Internet very very slowly

I have an arduino web server running from a mega 2560 and a wiznet ethernet shield. It serves the single page just fine (and very fast) to the LAN (192.168.1.50), but serves the same page very, very, ...
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1answer
3k views

Arduino Ethernet and Uno R3 as a firewall

Is there a way to program the Ethernet Shield and Uno R3 to act as a firewall without using a huge chunk of the allowed bytes on the R3? I plan on using a DC adapter to plug the R3 into a wall, and ...
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2answers
3k views

Uploading Temperature data (DHT22) to Thingspeak with an ENC28J60

So, I've gotten my module working pretty well. It logs data from the DHT22 and sends it to a 192 address on my LAN. However, I'd like to log and graph the data. I figured thingspeak is a decent ...
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2answers
500 views

Using a web server with Arduino

So I am not new to arduino, however, I am new with web servers. I am working on a project that can control a robotic arm that is at one location and I can be at my house. I know basic HTML, Basic CSS, ...
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0answers
526 views

Arduino GSM Shield web server hangs

I use official Arduino GSM Shield with Uno R3. I uploaded web server examples from official GSM library. I use a simple python script to make TCP/IP connections to my GSM Shield web server. I send ...
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0answers
678 views

Can you interface GSM, WiFi, and Bluetooth LE shield to Arduino?

I have a project that requires the following three shields and I was wondering if the Arduino has enough space to interface all of them at the same time. I am thinking of connecting each shield into a ...
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1answer
5k views

Webserver with Arduino Yun without SD

I'm trying to set up a simple web-server with Arduino Yun without an SD card, i.e via REST, if I understood it right (I'm new to some of these stuff). I want to be able to "get" data (sent by Arduino) ...
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2answers
3k views

Arduino Yun Webpage Server Issues

So, I've made a sketch on my Yun, which I would like to be able to take information from a webpage (like a button) and have the Arduino Microcontroller perform functions based on what button is being ...
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1answer
2k views

Wifi server to control led on and off from local webpage.. - ..if statement doesnt work…

Im a newbie on this arduino thing and I would like to build a curtain remotecontrolled from a local webpage with 2 buttons... a up an a down... I got the connection via my phone the the local page ...
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1answer
1k views

Bluetooth Master and Slave to track device's locations

I'm trying to create an app for my science fair that uses bluetooth to track people in a determined place. I was thinking about one Arduino system to receive all the information and transmit through a ...
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1answer
2k views

Arduino Yun and REST call security

I'm not expert about web development but very excited of doing some rest call using the yun as server (with a minimal python or node.js server inside the openwrt machine in the yun) and expose sensors ...
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1answer
824 views

Unable to read text file from server

I saw the Web client Example , In the example, the server connection is initialized in setup(). But I want the server to update the text file every time. So, I need the server connection to be in ...
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1answer
521 views

How to update a text file dynamically

I have Two Arduinos, One with the help of sensors it will dynamically updates in to my server database. Other Arduino, reads the stored contents from the server database and sends sms to phones. Now, ...
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1answer
214 views

How Server request happens?

Can somebody explain the below code, like how the server understands, how the request goes to the server from the below code. if (client.connect(server, port)) { client.print("GET /abc.txt"); ...
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1answer
1k views

SMS in modem's memory

I am working on SMS communication with my phone and Arduino. My intension is simple. When somebody send an SMS, the Arduino should read a text file located on my server and forward the content to the ...
3
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1answer
2k views

How to read a Text file from server and store to a separate variable?

I am working on reading a text file from the server, using http://arduino.cc/en/Reference/GSMClientConnected. It gives me this code: char path[]="/asciilogo.txt" I want to store only the contents ...
3
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2answers
15k views

How to receive data from my server database to a variable in my Arduino?

I am learning to work with the client - server communication. I am able to communicate with my server and able to store values in the table. But I want to receive one of the specific data from the ...
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3answers
4k views

client.connect() fails except the first time

I am communicating with the Web server's database via Arduino GSM shield + GPRS connectivity void loop() { if (client.connect(server, port)) { ....... } else { ...
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2answers
2k views

Arduino Mega & WiFi Shield; why web server every time says my A7 pin reads 0V?

I have got Arduino Mega 2560, Arduino WiFi Shield and resistor 1.5K. Now PWM 2 is attached to the resistor then attached GND. 5V is attached between PWM2 and resistor's up point. I want to read the ...
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1answer
900 views

Analog average sample wind speed sensor

I have wind speed sensor that can measure max speed upto 30 m/s with analog out put 0-5v. I have simple code calling from the loop. When I put the wind speed average code, the web server is not ...
2
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1answer
604 views

Ethernet shield programming

This is first time programming with Ethernet shield . I want to test the web server application with my Arduino. I have an Arduino Uno, Ethernet shield, and a potentiometer. Below code being uploaded. ...
9
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2answers
10k views

How do I use Arduino and node.js?

I am new to Arduino, however I have experience in web development, lately I have been using, meteor js and the mean stack for different projects. However, I am open to trying any language for ...
45
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11answers
7k views

Is an Arduino capable of running 24/7?

I'm making a simple Arduino web server and I want to keep it turned on all the time. So it must endure to stay working continuously. I'm using an Arduino Uno with a Ethernet Shield. It's powered ...