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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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
528 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
252 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
4k 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
91 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 ...
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2answers
111 views

Arduino over a Network

I am new to arduino programming. I want to sense temperature and send it to a server in my college. I am using Arduino Uno R3 board which has ATmega 328P micro-controller. I am able to get serial ...
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1answer
560 views

How can I analyse large packets on an Arduino?

I'm trying to send a large packet to an Arduino with an ethernet shield on it. I'm using the built-in RX buffer of the W5100 controller to store the data, but I need more memory (at least 16K of ...
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2answers
221 views

What is Vin for the EthernetPOE board?

I am working on a project that needs to drive a relay board. I'm looking at the ETHERNET board with PoE and according to the documentation here (http://arduino.cc/en/Main/ArduinoBoardEthernet) the ...
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1answer
2k views

W5100 module hookup help - Not a shield

I recently purchased a W5100 based ethernet shield for my arduino Uno, and looks like this. I had been following the guide here, and connected the pins accordingly - 5V to 5V, GND to GND, MOSI to 11, ...
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2answers
4k views

How can I speed up reading of an SD card?

I am working on a project using an Arduino as a web server. Code: webFile = SD.open("index.htm"); if (webFile) { while(webFile.available()) { client.write(webFile.read()); } webFile.close(); ...
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1answer
203 views

data type error on sensor data to ethernet client

I'm having a hard time debugging this piece of code, and i'm hoping someone can point out where i am making the mistake. My serial output is: connected GetData() got data... next stage... I've ...
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2answers
6k views

Where can I find a better pinout diagram for “Arduino Ethernet” board?

I'm looking for a complete pinout of the Arduino Ethernet R3. I've found one here which is low quality, and seems not complete (where are the digital I/O pins?). BTW, it was not a good idea for ...
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1answer
2k views

Unable to connect to Linux Environment (Linino AR9331 Interface) in Arduino Yun

I was trying to reset my Arduino Yun (WLAN button pressed for more than 30 seconds), but it just kept on blinking for about 10 minutes. Then I finally got impatient and restarted the Yun. After the ...
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1answer
401 views

Why client.stop causes some significant delay to do another task in a loop?

void setup() { Serial.begin(9600); // Initialize serial communications with the PC // disable SD SPI pinMode(4, OUTPUT); digitalWrite(4, HIGH); // disable w5100 SPI ...
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1answer
1k views

Arduino two Ethernet shields

Is it possible to connect two Ethernet shields to arduino? And if yes, how can I distinguish them in the code?
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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
2k views

Using an Ethernet Shield and a tlc5940 together

I have am using an Arduino Uno R2 and TLC5940 to control a bunch of RGB LEDs. I want to add an Ethernet Shield R3 so that I can control the LEDs over a web-interface. However, the ethernet shield and ...
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2answers
4k views

What's the difference between different Ethernet Shields?

I am working on a project with Arduino and I need an Ethernet shield. but after searching in some electronics shops I found there isn't only one but a lot. I don't know which one is better and what ...
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3answers
2k views

Using Intel Galileo Ethernet Port

Is it possible to use the galileo's ethernet port through arduino IDE? Or should I buy an arduino ethernet shield? Will I be able to use galileo as a server to which arduino board can send data to?
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2answers
564 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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1answer
1k views

USB mouse/keyboard passthrough feasible?

I'm looking to achieve the following: USB HID Mouse (or Keyboard) -> [ Arduino device ] -> PC | `-> Internet ...
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0answers
170 views

Live video cam on arduino [closed]

I'm doing a project where i need a live video capture, not taking pictures. Is it possible on arduino? With this cam ? I want to send the stream to my PC over ethernet. Is it possible? Will it work? I ...
0
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1answer
424 views

Arduino Nano and a 3.3v Ethernet shield

I plan on purchasing a Nano clone, an Ethernet shield (ENC28J60), an LCD and a DHT22 humidity + temperature sensor. This will be used in a wine cellar to monitor relative humidity and temperature. ...
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1answer
696 views

Why can't I connect more than one Arduino Uno + Ethernet Shield to my network?

I'm using 3 Arduino Uno boards with Ethernet shields. Each is connected to my home Internet switch with an Ethernet cable. I assigned a different local IP address to each Arduino and gave each board ...
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1answer
657 views

While using Arduino Ethernet shield, do we need to explicitly select/Deselect SD and W5100 in our code?

It has been mentioned here http://arduino.cc/en/Main/ArduinoEthernetShield that corresponding libraries take care of chip select between SD and W5100 in Arduino Ethernet shield. Does it take care ...
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1answer
360 views

I want to be able to upload a batch of tweets to a twitter bot to be qued' for tweeting

I have built a twitter bot with my Arduino and an Ethernet shield right now, the way to make it tweet something is to manually add a phase into the code and upload it to the board for each new tweet, ...
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1answer
4k views

Arduino Ethernet Client crashes after obtaining values from string

My Ethernet server keeps crashing after pulling the RGB values from the string. It remains connected if I'm just toggling a pin, but whenever the string has the rgb values in it, the RGB values are ...
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0answers
109 views

Best way to process data received by EthernetServer

I have a program where the Arduino acts as an Ethernet Server. The client continuously sends packets which is of the following format Start Byte=0x7E; Some Data/Command Bytes; //Can be of ...
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3answers
7k views

Arduino Mega - get mac adress

I am new on Arduino, and I am trying to use the Ethernet shield... but it need: IP adress MAC adress IP adress is easy to get... but not MAC.. how can I get my arduino MAC adress?
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5answers
7k views

Arduino communicating back and forth with PHP server

I am researching to find the best method to work with in order to control the arduino from a web interface (hosted on a web server using PHP) and also sending data from arduino to webserver and save ...
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1answer
2k views

Buffering data from EthernetServer clients

I was trying to write a Telnet server that would be able to accept commands of sorts using the Arduino Ethernet library, and in order to access what the client was saying (to compare it to strings to ...
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1answer
2k views

Arduino Ethernet Shield: May I connect it to a PC connected to the internet via wifi?

I have an Arduino Ethernet shield. May I connect it to a machine that´s connected wirelessly to the internet in order to get the arduino into the internet? Or do I need to connect it only to a ...
0
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1answer
105 views

How to program arduino for ethernet with only usb cable

I have arduino UNO r3 ATMEGA 328P board and this kind of a cable. But I want to make and test a program that need to get the data through ethernet port. Can I do only with them. I want to know whether ...
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1answer
2k views

Arduino Ethernet Shield connection to PC

is it possible to connect Arduino Ethernet Shield direct to PC and send a String variable? How can I read it later on the PC? Will this code work? #include <Ethernet.h> #include <SPI.h> ...
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1answer
4k views

How to disable Arduino Yun to work as Access Point and set it to work as needed?

I am using Arduino Yun and I would like to disable it to work as Access Point. That is, I don't want that it is displayed in the list of available networks. Then I would like to set and use it (...
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1answer
690 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. ...
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2answers
549 views

Webserver on Arduino

How can I run a webserver in a Arduino Uno? I want to use my Arduino to monitor things in my home such as temperature. I want to be able to access this data through the internet.
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1answer
2k views

Internet connectivity for the Arduino Due using AtmelStudio?

What hardware and software solutions work and what are the tradeoffs for connecting an Arduino Due to the internet? I gather the ethernet hardware is much cheaper than WiFi hardware (€29 versus €69). ...
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2answers
762 views

Arduino Uno R2 and Ethernet Shield R3 compatibility

I bought an Ethernet Shield R3 for my Arduino Uno R2, but since R3 has extra pins it does not fit. Can I use the shield? Should I cut off the extra pins. What do I need to do to make it work?
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6answers
45k views

How to get HTTPS on Arduino?

Put plainly: is there a way to get an HTTPS connection on the Arduino? I have been looking in to it, and I have found it is impossible with the standard library and the Ethernet shield, but is there ...
45
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11answers
8k 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 ...

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