Ethernet can be used for communication between an Arduino and a computer, server, or website. For question concerning the Arduino Ethernet board, use the tag "arduino-ethernet" instead.

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jpg file download from SD card with ethernet shield

I have this HTML code i want to show in my browser using an ethernet shield <!DOCTYPE html> <html> <head> <title>Arduino SD Card Web Page</title> </head> <body&...
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17 views

Unable to use ENC28J60 and RF 433mhz together

I would like to ask if any of you guys could give me a help with this problem. I'm working on this project to make a home automation system to my house using Arduino Uno + ENC28J60 + RF 433mhz. I'm ...
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19 views

Web Page doesn't load when data is being received from Xbee

I have an Arduino Mega I am using as a simple web server. Right now the web page is two simple lines of text. There is an XBee radio attached to the unit to receive data from another unit. However, ...
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1answer
34 views

arduino web client uploading data to mysql database

I have got this quick sketch that post data to mysql db using php add.php module. #include <SFE_BMP180.h> #include <SPI.h> #include <Ethernet.h> #include<dht.h> dht DHT; // ...
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2answers
53 views

The easiest and most time efficent way to connect to the internet regardless of the cost

I am working on my graduation Project. I want to use the cayenne (mydevices) platform to control my Arduino. Mainly I want to be able to control a servo Motor through the Cayenne app and I want to use ...
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36 views

Getting data from web form [duplicate]

I am using an EthernetServer and EthernetClient with Arduino in order to make a simple webpage. I have a web form for a user to enter various codes that can reset data stored on the back end. However, ...
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1answer
46 views

Arduino Web Server: Receiving response from web form

I am using an Arduino Mega and I have a basic webpage built using EthernetServer for the connection and EthernetClient to write the HTML to the client. I have a simple web form: client.println("<...
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32 views

Slow response from ENC28J60

I am making a circuit which turns a LED on and off through internet. I am connecting an Arduino to a LED and to an Ethernet controller(ENC28J60), but when I make a GET request to the device, it takes ...
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39 views

which Arduino UNO ethernet shield supports power over ethernet?

I ordered for this ethernet shield for my UNO as shown on the amazon website listing I was thinking to add power over ethernet module to take advantage of shield that supports adding POE module. . ...
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2answers
46 views

Ethernet shield not working

I have an ethernet shield on an Arduino Mega 2560. I am running the code below. This is a slightly modified version of the DHCP ip printer example, namely I am setting a static IP instead of DHCP. I ...
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28 views

Ethernet module ENC28C60 doesn't connect to internet when DHCP on router is disabled.

Update: Examples from library are working if DHCP is enabled! Using this library I try to connect with static IP but it always say DNS failed. Ethernet module is blinking that means is good ...
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1answer
25 views

Getting an error while uploading a code to the Arduino when ethernet shield is attached

I bought ethernet Shield today and connected it to Arduino Uno, now when I try to upldoad I get the following error, however if I remove the shield from the UNO it works fine. Sketch uses 10,486 ...
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34 views

W5100 Ethernet Shield to Custom Board Problem

I've been using an Arduino Ethernet shield and an Arduino Mega in my project, but now I'm trying to migrate all the components onto my own PCB. My board uses a W5100 same as the Arduino, but nothing ...
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19 views

EthernetClient: HTML table isn't being fully populated

I have the following code below for an EthernetClient named client. It is supposed to print a 2 row, 9 column table. The headers are ID and Name and are the first cell in each row. The other columns ...
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2answers
57 views

Arduino uno - Ethernet Shield enc28j60 hangs after some time

I am using Ethernet Shield enc28j60 for retrieve data from web server, but Ethernet Shield enc28j60 hangs after some time and it only works after restarting power supply (router usb port). My sketch :...
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1answer
74 views

Control Arduino through ethernet. How to contact from outside network and securely

I'm new to Arduino so please bear with me if my question is too simple or broad (I did try and research it) or guide me if it belongs elsewhere (networking forum?) I would like to be able to control ...
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1answer
60 views

How to correctly serve a webpage from an SD card

It's been days that I'm trying to figure it out how to edit this perfectly working code in order to load load a webpage from the sd card. #include <SPI.h> #include <Ethernet2.h> byte mac[]...
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31 views

Text file from PC to SD card via Arduino Ethernet Shield?

Is possible to transfer a text file from PC to SD card via Arduino Ethernet Shield? Are there an easy way to do this?
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2answers
77 views

Trouble reading LM35 with long (?) Ethernet connection

I have a quick question to ask. I have an Arduino Uno reading 4 temperature sensors (LM35) in 4 different rooms. What happens is that the two nearest rooms give stable values, while the two further ...
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1answer
81 views

Can't connect to my Arduino via W5100 Ethernet shield

I recently bought an W5100 ethernet shield and I'm trying to run this simple example which is a little improvement of the basic WebServer sketch provided by Arduino.cc #include <SPI.h> #include ...
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1answer
89 views

dns lookup only works with DHCP and not with static setup (EtherCard library)

When I use DHCP with ether.dhcpSetup() the DNS lookup for NTP ether.dnsLookup("0.pool.ntp.org") works fine, but when I use a static setup (because my Android app needs to know the IP address) with ...
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36 views

Arduino Ethernet Sheild with Arduino Uno Problem

So , I am new to arduino , and am making a project including Arduino Uno and Ethernet Shield , yet am at point 0 since every time I plug my Ethernet Shield to the Uno it hangs , as in if it connects ...
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4answers
53 views

Arduino Accessing a web page

Folks, I want to use my arduino with ethernet shield to access the following webpage "http://www.met.ie/forecasts/sea-area.asp" and take some information. On the website it has a line "Small Craft ...
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1answer
32 views

What if I just connect 5V DC to my UTP?

Here is the image of Ethernet shield near RJ45 socket: These small boxes are probably SMD capacitors which may mean, that internal board is glavanically disconnected from the UTP line. Is this true? ...
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2answers
57 views

EthernetUdp2 does not name a type

I'm using arduino Ethernet shield 2 form arduino.org and the arduino IDE 1.7.10 also from arduino.org the code is : #include <Dhcp.h> #include <Dns.h> #include <Ethernet2.h> #...
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61 views

MySQL Connector/Arduino insert data from row into an array

I'm new here. These days I have been working with the MySQL Connector/ Arduino library. So, my problem is how can i retrieve a rows data so as to enable an output. I have written some code, which was ...
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1answer
106 views

WizNet W5100 not connecting to modern switches and routers

I have an Arduino data collector with a W5100 module (see bottom of picture). Simple fixed IP connection: byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; byte ip[] = { 192, 168, 1, 242 }; ...
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1answer
54 views

HTTP Post not working

I am wanting to POST some data from Arduino to WebService (written in .NET), intending to save some temperature data to MS SQL Server. My code in arduino is: void PostarDados(String dados, String ...
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20 views

Problem with format of data to be sent with ether.browseUrl

I am using MINI ENC28J60 board. It works fine but I have problems with formating the dataCollection variable so that it can be sent with the ether.browseUrl. I need to collect several analogReads and ...
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1answer
40 views

Webserver on Arduino: How to 307 temporary redirect

I originally asked this question. Regarding a webserver Refresh issue on arduino. I am totally new to web development and ethernet. The answer from @Majenko is correct, but I do not understand how ...
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1answer
54 views

Webserver on Arduino: Refresh issues

I am using W5100 Ethernet Shield Network Module with arduino Uno as a webserver to trigger four relays connected to it. The relays may be toggled through the four buttons attached to it physically, ...
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1answer
20 views

Arduin YUN send data through Ethernet

I'm still new in Arduino YUN and i can't find any tutorials or examples on making the YUN send data through Ethernet which will then be showed to a webserver. I've seen other tutorials but they use ...
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2answers
42 views

Arduino-like ethernet only board?

I don't think USB chip is more expensive than Ethernet chip. So, I expect there should exist a board like Arduino, but where USB is removed in favour of Ethernet. Are there such boards?
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115 views

Udp.remoteIP() and Udp.remotePort() calls not working

I'm trying to conect an Intel Galileo over ethernet. I'm using the code located in Examples/Ethernet/UDPSendReceiveString. Everything works fine except for the response. Udp.remoteIP() always return ...
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2answers
44 views

arduino ethernet run php from sd card

I am just interested, but I would like to run a webpage with php on my arduino ethernet. I would like to be able to store my webpage on the sd card as well. does anyone know of a library that would ...
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1answer
48 views

Informations lost in a string

At first, I sorry if I make some English faults but I'm French. So, I'm making a connection between a client and an Arduino Uno. I receive all data that I need but when I send a response to my ...
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61 views

Response to a client

I am new (and French) so, sorry for my English. I am developing an Arduino application with an Arduino Uno and an Ethernet Shield 2. I need to receive some data from a client (like, e.g. which ...
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13 views

Send data from Mobile to Arduino

I want to send data from Android/iOS to Arduino Mega with Ethernet Shield. I have tested OSC but it only works with TouchOSC as I know. And I cant create my own mobile app with this. Have another ...
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1answer
83 views

Ethernet Controlled Arduino Arm

Good day, I am currently attempting to write code that will allow a user to connect to an Arduino Mega via ip address and control a robotic arm on the X and Y axis as well as open and close the claw. ...
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1answer
138 views

Wired IoT sensor network with PoE?

Objective: Maybe I'm a bad Googler, but I am finding very little on wired Internet of Things sensor networks using Arduino. Project Goals: Arduino based sensor nodes that connect to the local ...
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1answer
113 views

Arduino mega 2560 Stacked with Ethernet/SD card Shield Heat up

Stacked mega and ethernet/sd shield: When I do this stacking, it heats up. I tried connecting the SPI via ports 13-10 (no stacking), it doesn't work. Also tried connecting the ICSP (red circled mark) ...
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1answer
289 views

BMP280 sensor not initializing

I am successfully using the BMP280 sensor via SPI connection with an Arduino Uno R3 board. I'm trying to run the same code with the same setup on an Arduino Ethernet. However the sensor is not ...
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213 views

Ethernet Shield: Failed to configure Ethernet using DHCP

I am currently making a design that uses the Arduino's Ethernet shield. I am using the PushingBox API for Arduino, and have tried it with my Arduino Mega (2560) with the ethernet shield attached to ...
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1answer
78 views

Ethernet shield/WebServer problem: 'server is at 0.0.0.0'. Any suggestions how to debug it?

Ethernet shield problem. When running the WebServer example sketch, the Serial Monitor shows that server is at 0.0.0.0. Any suggestions how to debug it?
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1answer
107 views

Cannot directly connect Arduino Ethernet to PC

I have been following various tutorials (especially: this) to connect an Arduino Ethernet board to my Ubuntu PC via Ethernet directly. The IP address of the computer was found to be 10.100.31.128, ...
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1answer
64 views

Connectivity of arduino pro mini with different modules

Can an arduino pro mini be used with an audio decoder, 2.8 inch tft touch screen and ethernet shield simultaneouly?
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2answers
120 views

Can a 9V battery be used as a backup power supply (to Arduino Uno) while plugged directly into Vin and ground?

Sorry if this has been asked before, but I've read tons of threads and it seems the answer is only implied on a couple of occasions. I'm an electrical noob, but I understand that a 9v battery ...
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41 views

Resend data traffic from an Arduino

I have an Arduino with an Ethernet shield and I want to capture all Ethernet data traffic that connects to the Arduino via [as?] a router. This is because I want to use the Arduino like a honeypot and ...
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1answer
239 views

Ethernet shield or Wifi sheild - Arduino?

To control some LEDs through internet using Arduino UNO, which type of connection is better ? Ethernet or Wifi? (Later, I may connect some relays instead of LEDs, and control (turn on and off) some ...
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146 views

Connecting ethernet shield to computer

What configuration settings do I need to change on my computer to use the ethernet shield mounted on my Arduino UNO as I don't want to connect the ethernet shield to the router?