Questions tagged [ethernet]

Ethernet can be used for cabled 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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1answer
99 views

Yum as eth->wlan adaptor

Is there a way to make a yun an Ethernet-wifi bridge? Applications include giving wifi to raspberry pi and other Ethernet only devices and vice versa.
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1answer
992 views

Ethernet shield not have MAC address sticker [duplicate]

Hi everyone I recently bought an Arduino Mega and Arduino Ethernet Shield. There are lots of forum posts that say the shield should have a MAC address that is written on the back side of shield, but I ...
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1answer
118 views

Can a shift register be used to extend the Arduino pins when an ethernet shield is mounted on the Arduino?

I am currently working on a wireless home automation system. The system is connected to a wireless network in the home via the ethernet cable connected the ethernet shield and router. Hence, I need ...
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2answers
611 views

Arduino Ethernet Shield Response Process, Time, and Synchronization

I have a ethenet shield. I want to update my server page. Server page have to show current time. The code is given in this link. Code works but there is two problem 1- When i press the stop button in ...
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1answer
2k views

DHCP Failing on Arduino Uno [closed]

I have an Arduino Uno with and Ethernet shield. There was a project which had it connecting to the network. It no longer does. Through debugging, it seems that Ethernet.begin(mac) == 0 never returns, ...
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2answers
914 views

Issues with Stacking Ethernet shield and USB Host shield

I want to stack Ethernet shield and USB host together with my Arduino MEGA 2560. Each of these shields works fine separately. Is it necessary to contact bootloader pins with each shield and arduino ...
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1answer
823 views

Arduino web server: redirect to mobile site on SD card?

Is there any way to have an Arduino web server redirect the client to a file on the SD card only if the client is using a mobile browser? (My arduino server is already successfully serving pages on ...
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1answer
279 views

WizNet chip on Ethernet Shield oddly hot

I'm making a thermometer and, so I can graph the data, I have an Uno with the WizNet shield sending the data to a LAN ip. The chip itself is oddly hot, its temperature measures at around 110-120ºF (43....
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5answers
9k views

MQTT client on Arduino + SIM900

I have used the pubsubclient library for Arduino for communicating with an MQTT broker in the past, however the library works only with Ethernet connecction. I need to use GSM in my application and am ...
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2answers
174 views

Sending a double message for action to occur

I'm currently designing a system for my GCSE coursework. For the coursework, I am making a bollard system, controlled by the internet / traffic lights. I've been experimenting with an Arduino Uno and ...
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1answer
270 views

Disconnect Ethernet Shield

I'm trying to use the Ethernet Shield and the EasyVR (voice recognition) together. The Ethernet shield uses the same pins that the EasyVR, but the easyVR works fine if I don't call Ethernet.begin(). ...
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0answers
169 views

Uno Ethernet shield and TMP36 reading

I am just getting started with my Uno via the Vilros Ultimate Starter Kit. I've done all of the sample circuits and played around with a few other things. Today I connected the Ethernet shield with ...
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1answer
1k views

micro arduino and w5100

I would like to ask if it is possible and how to connect the following module http://www.ebay.com/itm/TOP-Mini-W5100-LAN-Ethernet-Shield-Network-Module-board-for-Arduino-Best-NEW-/251981053942?pt=...
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2answers
2k views

Unable to configure Ethernet using Arduino Uno R3

I have purchased an Arduino Uno R3 board and a LAN shield from these locations: Arduino UNO R3 Arduino LAN shield I am trying to configure Ethernet using this sketch: #include <SPI.h> #...
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1answer
130 views

SFML Packet and Arduino

Can the sf::Packet class of SFML-network be ported over to arduino for use with the Ethernet library or would it be too big? I'm working on a client-program where an arduino is a server and a regular ...
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2answers
1k views

w5100 and nrf24l01 - SoftSPI - Radio not starting

I had posted some questions about this project earlier this week. Arduino uno + w5100 ethernet shield + nrf24l01 transeiver. The w5100 is running a webserver to accept GET requests and parse out the ...
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3answers
4k views

Arduino Ethernet Shield 2 stuck on EthernetServer::begin()

I am currently trying to get the Ethernet Shield working on my Mega. I was trying to run the Webserver example but the program seems to stuck at one point, so I tried to start from scratch. This is ...
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0answers
257 views

Problems when communicating with SD card using ethernet shield

I am using the "SD read/write" code from the Arduino IDE examples to test an ethernet shield (clone). The problem is that although a file is created no data is stored in it. When running the serial ...
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0answers
522 views

Arduino uno RF transmitter and receiver, MYSQL

i tried to connect my arduino uno and ethernet shield with Mysql and everything works fine. Then I tried to connect the RF transmitter and receiver. I use a similar code, but i have problem with ...
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3answers
1k views

Using Browser window to display sensor values in realtime [closed]

The title pretty much says it all: What would be the most obvious way to setup the Arduino (shields?), the Sketch (libraries?) and PC (webserver, ajax, plain html?) so that I get the following system ...
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1answer
628 views

Set dynamically hour - DS1307

I want keep my RTC1307 always updated with my server, so I created this code to first search the time on the server then passes to getServerTime() function to divide it and set in the RTC. I use the ...
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1answer
1k views

Arduino-uno sending email with Hotmail

I want to get emails read from a Hotmail account using an Arduino Uno. Is there a way to do it with SSL or is there a way to disable SSL? #include <SPI.h> #include <Ethernet.h> // Use ...
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2answers
249 views

arduino ethernet shield

I bought a ethernet shield for my Arduino Uno. I plug it my Arduino and PC with ethernet cable. There is all led is working on ethernet shield. But when i try to examples about ethernet which is in ...
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3answers
4k views

DHT11 with Mysql

I need help to record databаse from dht11 sensor to mysql server. this is my code: #include <DHT.h> #include <Ethernet.h> #include <SPI.h> byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, ...
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2answers
277 views

Multithreading Leds and Joystick

I'm trying to made a program that turn on and turn off leds with an input and send the coordinates of joystick, but, in the loop, the arduino makes one at a time, and i want make this in the same time....
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1answer
185 views

MQTT vs Tinkerkit sensor Shield

I'm working with this http://knolleary.net/arduino-client-for-mqtt/. I'm using Arduino Uno + Ethernet shield + Tinkerkit Shield. But, if i have only Arduino Uno + Ethernet Shield, i can connect my ...
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0answers
370 views

The Ethernet Shield Unable to Establish Full Duplex Communication [closed]

I am using Arduino Uno R3 board with Atmega 328p microcontroller along with an ethernet shield for showing tempererature over a network. However i am facing a problem that the FULLD(full duplex for ...
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1answer
229 views

Ask for available ip on ethernet shield

Is there any way so an ethernet shield to ask the router for an available ip address? For example to ask for an ip an the router to return 192.168.1.2 if it is available. I am asking it because if we ...
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1answer
54 views

Can I use custom ethernet shield with standard libraries?

I would like to make a custom ethernet card that uses the enc28j60 like this: DIY Ethernet card but first I would like to know if I can use the standard libraries which can be used with the ethernet ...
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1answer
13k views

How to call URL with Arduino Ethernet shield?

I'm working on Arduino and Ethernet shield. I need to call a URL. How can do it? (This URL is HTTP API to send an SMS to my phone). url: http://api.clickatell.com/http/sendmsg?user=mohammed.atha&...
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1answer
2k views

Ethernet shield and sd card not working togather on arduino mega

I am making a web-client with an Arduino mega and Ethernet Shield. I am trying to receive data from a web-server running a php script and saving that data to the SD card located in the Arduino ...
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0answers
4k views

Arduino Ethernet shield server and client at the same time

Hardware: Arduino Mega 2560 Rev3 Ethernet Shield Rev3 A sensor Goal: Take value from sensor, upload it to ThingSpeak. Host a web page on the Arduino. Question: I've done both things in the past. ...
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1answer
866 views

Is my Arduino Ethernet Shield broken?

I have an Arduino setup from which I can control my RGB LED strip from my computer using LAN. It worked like a charm in the start, but after two days, my Ethernet Shield W5100 for Arduino Uno stopped ...
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0answers
71 views

error C1083: Cannot open include file: 'Ethernet.h':

i'm trying to compile native code in VC++ using galileo sdk for windows iot. I've copied Ethernet.h file to the include directory of D:\galileo-sdk-develop\galileo-sdk-develop\source> but still ...
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1answer
3k views

Dallas Temperature Sensor DS18B20 not showing correct Result with Ethernet Shield

I am using Arduino Uno R3 board and a wiznet W5100 ethernet Shield. The temperature from the One wire sensors before using Ethernet Shield was showing correct. However later after connecting the ...
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2answers
2k views

Arduino Uno, Ethernet shield, MySQL

I'm trying to connect my Arduino Uno with MySQL. This is my code: #include <SPI.h> #include <Ethernet.h> #include <sha1.h> #include <mysql.h> /* Setup for Ethernet Library */...
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1answer
4k views

Set the timeout - Ethernet Shield library

Does anyone know if you can set the time for the timeout Ethernet Shield library? Let me explain: I created a very simple function (below) that attempts to connect to an address if it is not ...
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3answers
6k views

Ethernet shield not getting IP

I am just running the below DHCPAddressPrinter sketch in Arduino example to setup EthernetShield with MAC and IP #include <SPI.h> #include <Ethernet.h> // Enter a MAC address for your ...
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1answer
316 views

Ethernet Shield on Arduino Mini

I would like to connect my custom-made Arduino with an Ethernet shield but I'm not so sure I can. The problem My board is using the design from the Arduino Mini which lacks the ATmega16U2 which does ...
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1answer
2k views

Use an ethernet shield and RFID rc522 together on a mega?

I am using an Arduino Mega and I would like to connect a rc52 RFID reader and a network shield. My problem is that both are set to use the same set of pins: 50 - 53. Can I redefine the pins used so ...
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1answer
3k views

Using ethernet, how do I navigate to a page on my local server

I want to access the following page on my local using my Arduino with ethernet shield" 192.168.1.2/zombie/arduino.php. My arduino is conencted to a PC through a router. The system keeps timing out ...
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2answers
174 views

Storing data (strings) if ethernet fails to send it

Flow goes something like: Read sensors Send data If send fails store the data in eeprom/flash/sd If sent check if any previous ones have failed and send those So my question is what's the best ...
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0answers
527 views

Arduino Uno WebClient program not returning the exepected output

I have connected the Ethernet Shield to the Arduino Uno Board and do get the following error when I execute the WebClient program. Look like it's getting connected to the internet, because I am ...
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1answer
247 views

Multiple shields on one Arduino/Linker base shield

I'm using an Arduino Uno R3 along with an Ethernet shield as well as the linker base shield for interfacing with three linker modules, light, temperature and some LEDs as I believed this would be ...
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1answer
3k views

POST request not working

I'm following a guide on storing sensor data to MYSQL: Guide I'm using different sensors but my POST request is getting any results to my server. For now, I'm only storing temperature. Here is my ...
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3answers
3k views

How to send SMS from an Ethernet shield via SMS Gateway?

How do I send SMS from an Ethernet shield via SMS Gateway? The site Clickatell provides free SMS. Does anyone know how to do this or is there some other way to do it?
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2answers
2k views

Is it possible to read VGA with an arduino

In this forum thread on arduino.cc http://forum.arduino.cc/index.php?topic=107375.0 they talk about it not being possible to get 800 x 600 video in color with the arduino. My case is a bit different: ...
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1answer
89 views

Arduino Ethernet Shield vendor is null

I bought Ethernet Shield for Arduino Uno! from AliExpress. It is good work but I scanned my network with Fing and device Vendor name is null. Can I change/set device Vendor? #include <SPI.h> #...
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2answers
14k views

Didn't have MAC address on Wiznet based ethernet shield (cloned)

My Ethernet shield dont have any MAC address, please tell me how to find the MAC address, I'm stucked! Here is the link from where I bought the Ethernet shield. http://www.amazon.in/gp/product/...
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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 ...