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.

Filter by
Sorted by
Tagged with
-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
1
vote
2answers
3k views

Simple webpage serve with Arduino ethernet shield on SD card

I have been experiment with the arduino uno board from few days but can't seem to make it serve web page stored in SD card of ethernet shield. If I print the contents of the file to serial it works ...
0
votes
5answers
4k views

A simple login page on Arduino Uno

I'm trying to setup home automation system controlled with webpage stored in SD card of Arduino, I was thinking if it was possible to set a login page, only combination of correct user id & ...
0
votes
1answer
939 views

Is there a practical way to broadcast and receive ascii payloads over ethernet or wifi?

How best might arduino nodes pass incoming serial ascii messages out as ascii network broadcasts for all others to receive and pass out through their serial ports? ie: typing a msg from the IDE ...
0
votes
2answers
4k views

MQTT broker and Arduino + Sensors NRF24L01

I am newbie, I have never used MQTT before, so I have some questions. Here is my topology. I have several sensors (Arduino Pro Mini + NRF24L01) and main server/handler(Arduino Mega + Ethernet Shield ...
0
votes
0answers
229 views

Arduino ethernet shield error

As I mention in the title, that when I am trying to upload the code of WebServer to the Ethernet Shield it shows me an error messages. Please if any one can help me to fix it, and here is the ...
1
vote
0answers
369 views

Problem using Adafruit nRF8001 (BLE) with Ethernet module on Arduino Nano

I'm working on Arduino Nano and I have to use both the Bluetooth LE module Adafruit nRF8001 and ENC28J60 Ethernet module using Ethercard The idea of the project is to receive data from smartphone via ...
-1
votes
2answers
2k views

Unable to connect Ethernet shield W5100 to localhost

I have an Arduino Uno and a W5100 Ethernet Shield. I am trying to post some data from the Arduino board to the WAMP server running on my computer. I do not have a router so I have directly connected ...
3
votes
1answer
67 views

Read information from Twitch's API and execute actions depending on the output

i'm trying to create a display that notifies me when someone goes live on twitch. I need to acess the API and check if the 'stream' object is null or not. Then, perform an action depending on this. ...
0
votes
1answer
277 views

Arduino Ethernet intermittently connects to server

Here is my code: #include <SPI.h> #include <OneWire.h> #include <EthernetV2_0.h> #include <EthernetClientV2_0.h> #include <EthernetServerV2_0.h> #include <...
2
votes
1answer
692 views

Saving byte array in PROGMEM instead of SRAM

For an ethernet project I do, I need to store the Ethernet Shield's MAC address. I store it like that: byte mac[] = { 0x90, 0xA2, 0xDA, 0x0F, 0xE1, 0x85 }; That works OK, but in my project I need ...
1
vote
1answer
332 views

Why does Ethernet.begin() require a MAC address when WiFi.begin() doesn't?

I am working on an Arduino application which is dependant on a certain library. This library uses the Ethernet class for network communications, but ideally, I would like it to be wireless (I have ...
1
vote
1answer
66 views

Update code over Ethernet?

I've got an Arduino faithfully monitoring our sewer lift pump. It talks to the world over Ethernet (with PoE). I'm wondering if there is any way to load new code over the Ethernet as well. Any ideas ...
1
vote
2answers
1k views

W5100 Ethernet shield DHCP fails with a Switch

we are using Arduino W5100 Ethernet shield. The code is to try DHCP first and if that fails, then try the static IP. we do the Ethernet Initialization and stop every time. The library is Arduino ...
2
votes
2answers
518 views

Arduino hangs after less than a minute, but not on USB

I have arduino uno + ethernet shield + 9V/200mA adapter. I am trying to send some data with HTTP connection. When it's connected to USB it works perfectly, but when I plugged out USB, hangs (after ...
-1
votes
1answer
1k views

Ethernet shield reset problems

I know there are multiple threads about ethernet shields not starting properly after power up and that there are versions that don't have those problems. But which versions are okay? Which versions do ...
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
752 views

connecting RTC DS1307 to ethernet shield

What is the easiest way to mount DS1307 to ethernet shield? I tried to do this: https://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit/wiring-it-up but my program just freezes when I ...
-1
votes
1answer
70 views

Control the ethernet shield with Chrome and Safari

I am trying to communicate with ethernet shield. When I enter the IP in Chrome the job is done (simply an LED turns off and on with IP/$1 and IP/$2) but with Safari it is not. Any idea what the ...
1
vote
0answers
254 views

Suggest some ways to communicate (Rx and Tx) between Arduino and LabVIEW through Internet

Suggest Hardwares to use and also suggest some place to learn about IoT, video tutorials, websites, blogs, books etc. Currently I am using Xbees to communicate between LabVIEW and Arduino Mega. Most ...
0
votes
1answer
1k views

Arduino with DS18b20 and ENC28J60 to thingspeak

Can anyone help me to make this work? I have been trying for a couple of days to make this work, but no luck. I use a DS18b20 Temperature sensor and an ENC28J60 Ethernet module. The last code that I ...
1
vote
1answer
357 views

Is there something I can use to control Arduinos easily over Ethernet with .NET?

I'm wondering if there's anything out there that maybe works pretty similarly to Firmata, runs on Unos or Megas, and can be controlled over Ethernet. I am writing a home automation system with .NET, ...
1
vote
2answers
171 views

TCP connection CPU usage, multiple signals?

I'm connecting a client (java program) to an arduino (server). What I want to know is, how high the CPU usage is, and what to do if there are no clients that are trying to connect to arduino? Should I ...
3
votes
2answers
465 views

Help putting an Arduino project on the Internet

I'm working on quite a big project and I need few advices. Basically, Arduino will be receiving data (Strings) and will work with it. No problems with that, but I don't know what to do with receiving ...
1
vote
0answers
241 views

Arduino nano (clone) with ethernet shield only works when I open up serial monitor

#include <EtherCard.h> static byte mymac[] = { 0x7A,0x69,0x69,0x2D,0x30,0x31 }; byte Ethernet::buffer[500]; static uint32_t timer; const char website[] PROGMEM = "x0201g2.cloudapp.net"; ...
0
votes
2answers
189 views

Arduino read from Server periodically

I have an arduino attached with a RGB-Shield. I want to query my server for the RGB values periodically. I basically got it working using the Ethernet Shield but it takes too long to get the value (~...
0
votes
1answer
287 views

Making Laser Tripwire with Phone Messaging

I am looking at Arduino and Raspberry Pi and I want to do a pretty advanced project. I want to make a laser triggered security project that sends a message to either a android or iPhone. First I don'...
0
votes
1answer
679 views

Arduino ethernet shield not responding to every request because it is busy

I have a simple HTTP server that monitors a serial port and responds to HTTP requests by sending the value. The serial port constantly outputs data, so that apart from a brief moment when the device ...
0
votes
1answer
304 views

Arduino W5100 AVR

I'm trying to use a W5100 Arduino Ethernet Shield on a ATMega2560 using avr code. There exists a library written in C, which should work http://www.seanet.com/~karllunt/w5100_webserv.zip from http://...
0
votes
4answers
882 views

Relay doing opposite to digital pin

I have a Arduino UNO with a Ethernet shield which hosts a basic HTML page with a button on it which controls a Relay module. I'm trying to connect to a computer's power button so I can turn it on ...
0
votes
1answer
42 views

Arduino communicate between 2 different router in different location

I am on my final year project in I.T. my project is that i want to create a helicopter or quadcopter with a camera attached to it. And i want to control the copter via wifi from an android phone in ...
0
votes
1answer
42 views

Does Arduino.cc sell the Ethernet Shield?

I can't find more information on the Ethernet Shield. Arduino.cc has docs about it but where do I buy it? Is Arduino.org the sole provider? I've read about the political schism between the two ...
0
votes
2answers
973 views

Json gets corrupted after first HTTP request

I'm a web developer and I started building a small environment logger that will post to my website`s API. I'm really new to this kind of coding so bare with me. Since yesterday, the whole Arduino ...
0
votes
2answers
9k views

How do I connect Arduino directly to MySQL server using the URL?

I started a project with my Arduino Mega 2560 that gets some values from sensors. I'm using MySQL Connector, https://launchpad.net/mysql-arduino, and this library allows me to connect to a server ...
0
votes
1answer
2k views

Connect my arduino with ethernet shield to new router

I just changed the router for my webserver and I'm having trouble to connect my arduino with the LAN. I'm using a router which uses Zhone technology, and I've been working with NetGear for a while ...
0
votes
1answer
643 views

Integrating two Arduino Ethernet libraries in one sketch

I am trying to integrate two different Arduino Ethernet libraries, EtherShield and UIPEthernet in one sketch. EtherShield library is used to control LEDs via Android mobile application. While ...
0
votes
1answer
111 views

GET the first result in HTTP request

I have a String content="" and if I put an HTTP request like this: client.println("GET /api/actions?parking_id=39 HTTP/1.1"); client.println("Host: ramp-rampcontrol.rhcloud.com"); client....
2
votes
1answer
320 views

Client.connect galileo gen2 not working

I'm having a problem with the intel galileo gen2 ethernet. I am trying to get a webpage, but I can only connect to the ethernet, not the webpage. I get this in the Serial monitor: My code: /* Web ...
0
votes
1answer
2k views

Ethernet to Cellular Modem Possible? | GSM + Ethernet + Arduino

Is it possible to combine an Arduino µC with a GSM shield and an ethernet shield such that a device connected via ethernet to the Arduino has internet access over the GSM network? I have a system ...
0
votes
3answers
875 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
1answer
1k views

Arduino ethernet shield not getting correct IP

I have a very simple sketch which I'm using to (try to) prove out an ethernet shield. The complete sketch is below. When I upload the sketch, the IP address that the shield gets is 0.140.140.140, ...
2
votes
1answer
1k views

Control servo motors with buttons and via web application

I have this assignment and I have been tinkering a long time about it. I need to make a simulation of a parking lot where servos would represent the ramps. I will be using 2 Arduinos running the same ...
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 ...
-1
votes
1answer
151 views

Connecting to Arduino Ethernet Shield

How do I figure out how to connect to my arduino using ethernet shield? It prints the IP in the serial monitor, but it doesn't work, and adding the port doesn't make a difference. The client example ...
0
votes
0answers
225 views

Parsing UDP text from a Command using UDP

I want to send a parameter from my computer (i.e using Hercules software) using UDP protocol to my Arduino with Ethernet shield to turn 2 LED on and off (each of them). The command I'm using is: $A&...
0
votes
1answer
1k views

Getting values from multiple thermistors - one value glitches all over the place

I have a circuit with preferably long wires that get data from thermistors. The Arduino sends this data (formatted in JSON) to a web server where it can be collected by another program. Some of these ...
0
votes
1answer
2k views

Streaming sensor data over UDP using an Arduino Yún - how to do it and how fast could it be?

The company where I work wants to do a proof of concept for our new product, a force-sensing platform. The platform contains four three-axial load cells, so we have 12 channels, which are to be ...
0
votes
3answers
534 views

Arduino for delivering a WoL signal over ethernet, when receiving a specific command over WiFi

I'd like to assemble a device that could accomplish the following: Connect to my home wifi (WPA2-Personal) Connect to my home PC with via Ethernet cable Able to send WoL signal to the PC when getting ...
-1
votes
1answer
98 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.
1
vote
1answer
985 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 ...