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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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7
votes
4answers
6k views

How to interconnect multiple Arduinos with a Rpi to control home-lights/switches

While planning the lightning infrastructure (wall-switches and lights) of my new home (it's still under-construction) I choosed to go through the "automated route" way and due to my background (I'm an ...
45
votes
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 ...
1
vote
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/...
1
vote
1answer
2k 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, ...
7
votes
3answers
691 views

Multiple SPI device

I want to connect Ethernet board (W5100 HR911105A) to Arduino Leonardo with SPI and I also want to connect SD reader. When I test these boards separately everything working. But when I connect them ...
1
vote
0answers
43 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, ...
1
vote
1answer
879 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 ...
1
vote
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, ...
0
votes
0answers
63 views

Sending .wav via network

I'm working in a project and part of this project is sending a .wav file from an Arduino to other device (for example anther Arduino). I already am able to send a .txt file from an SD which was ...
31
votes
6answers
41k 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 ...
5
votes
2answers
3k 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 }; ...
0
votes
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 ...
2
votes
1answer
67 views

How can I make this code read a page every 10 seconds?

I got problems with the code and I have used most of today, trying to find a solution and it's starting to drive my crazy. I hope one of you guys will be able to help me out. I need the code to check ...
1
vote
0answers
1k views

Sending data from webserver to Arduino

Hello Arduino enthusiasts! I've been working on a keypad lock system for school lately and I need some advice.Basically, my code checks if the entered passcode is the same than a predefined passcode ...
1
vote
1answer
897 views

How to read response from server using an Ethernet shield?

I want to control a relay by reading values from MySQL. I'm using an Arduino and an Ethernet shield. So far, I can get the response from server and get the value. I just need the value 10110110, but I ...
1
vote
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 ...
0
votes
2answers
897 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, ...
0
votes
3answers
877 views

Can a Ethernet USB Dongle be instead of ethernet shield for arduino?

Can a Ethernet USB Dongle be instead of Ethernet shield for arduino in order to cut costs?
0
votes
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, ...
0
votes
3answers
2k views

Connect ethernet cable wires directly to pins

Is it possible to uncrimp a RJ45 plug and connect the wires directly to the Arduino pins? I guess I'd have to decrypt the ethernet signal then on my Arduino which might not have enough processing ...
0
votes
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 ...
0
votes
2answers
1k views

How to store an RFID tag number in a string

I want to send RFID tag number to PHP page. So far I have sent a fixed string to php and it worked, now I am not getting data in string when i scan rfid tag. I want to store every RFID tag number in a ...
-2
votes
1answer
136 views

Controlling arduino over webserver

I want to control arduino through Internet without using Ethernet shield. I know there is a way. So can you help me what things I'll be needing for that