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Questions tagged [networking]

For question related to environment with networks.

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votes
1answer
359 views

Open WiFi Configuration Automatically

Is it possible to have an Arduino Uno + WiFi 101 recognize when the USB cable has been connected and prompt a user to enter a network name and password? Can this be stored on the Arduino itself or ...
1
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2answers
730 views

Hardware network-infrastructure for a fully-arduino-based home-automation project

As already mentioned in another question, I'm spending LOT of time planning the home-automation system for my new house (currently still in the "still building" phase). Even if started only as a "...
1
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1answer
1k views

Advice for checking integrity of serial char strings?

I'm trying to create a flexible but reliable system for arduinos to interact using serial ascii strings. I'm using a message structure comprised of Command[10] + (optional) Params[20] + (optional) ...
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3answers
2k views

Connecting Arduino with Philips Hue

I'm trying to control Philips Hue lights through an Arduino Uno (with a WiFi shield Model R3). Both the shield and the Philips Hue Bridge are connected to the same network and I'm trying to send JSON ...
1
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0answers
176 views

Receiving and transmitting messages simultaneously

tldr; I am writing a mesh network software using arduinos. I need to wirelessly receive, process, and transmit data, all simultaneously. I am aware of protothreads library, and the other software ...
0
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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
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2answers
1k views

Simple network protocol to communicate between N slave arduino and 1 central arduino? [closed]

i am looking to communicate text ( 40 char for each message ) between N arduino and a central one ( Communication is one way slaves to Master).I am looking for wire communication with 1 to 5 m ...
2
votes
1answer
356 views

Module and library for self healing large sensor network

I have to build a wireless sensor network with arduinos on my project. It does not need to be a mesh network, but it needs to have self healing capabilities. I would like to use something cheaper ...
1
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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 ...
1
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0answers
67 views

Multi-drop RS485 device control v1.0 - why is limit for “TIME_BETWEEN_MESSAGES ”?

I am going to use Nick's rolling-master system library (http://www.gammon.com.au/forum/?id=11428) in my home project. For first experiments and testing, I have: - BAUD_RATE = 9600 - max adress = 2 (...
0
votes
1answer
274 views

How to network multiple Arduinos so they react to the same signal

I want to build a project that contains multiple Arduino nano's, each connected to one controlling Raspberry Pi. I would like to send one signal (a string of characters or numbers) which would be the ...
-1
votes
1answer
172 views

Doesn't work radio transmission from Arduino Uno to Arduino Pro Micro

I have Arduino Uno, Arduino Pro Micro, XY-MK-5V and FS1000A. I need transmit data from Pro Micro to Uno. Transmitter: #include <VirtualWire.h> void setup() { Serial.begin(9600)...
0
votes
1answer
124 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 ...
0
votes
1answer
108 views

Arduino resets when I call network.begin()

I have included the RF24Network library in my project. I tried to use the Simple Transmit/Receive example from here but when it calls the network.begin() my arduino restarts. I placed some Serial....
2
votes
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. ...
2
votes
2answers
148 views

If I have a group of Arduinos connected via I2C, can one Arduino cause the rest to freeze?

I have a group of four Arduino boards connected via I2C. One is the master, which sends and receives values from all of the others. I noticed that the Master will stop executing its loop if power is ...
-1
votes
1answer
4k views

Arduino TCP communication with Android phone

I am trying to communicate Arduino Uno with an android phone. What I trying to is: Android device post a string to Arduino Arduino post a integer to Android So far I can post message from Android, ...
0
votes
1answer
155 views

How to return a message when calling by a TCP connection?

I am working on a communication between Android and Arduino board. The Android makes a TCP connection with the board and successfully sends some strings to the board. The problem is, there is an ...
7
votes
1answer
938 views

Arduino and ESP8266 Web server

First things first, if there was an ESP8266 StackExchange, I would post this there. I am setting up a web server that will programmaticly be controlled from an external Python script, and I am ...
1
vote
1answer
1k views

RF network using Arduino

I am working on home automation project. A network consists of one master device and many (maybe 10-20) slave devices, all communicating via these RF modules. I am using arduino in slave devices. ...
3
votes
5answers
21k views

How can I run multiple programs on an Arduino?

I'm trying to get students to experiment with Arduino. However, due to a lack of boards, two teams of students will collaborate on each board. They will push their own code (independent from each ...
0
votes
1answer
982 views

WiFi UDP.endPacket() continuously fails

I am attempting to send data from my Arduino to my computer using the WiFi shield. However, my code is erroring out on UDP.endPacket(), and I do not understand why. Here is my code: #include <...
3
votes
2answers
628 views

Is it possible to use ESP8266 modules interchangeably?

I discovered that there are multiple types & versions of ESP8266 modules. I'm wondering: Build my application around one type (eg ESP-03) and in future swap the module with another (ESP-07), ...
1
vote
1answer
639 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 ...
3
votes
4answers
2k views

Communicating between a computer and multiple Arduinos

I am designing a experiment of controlling 6 small wind turbines wirelessly. For each wind turbine, I need to measure power time series (or voltage or current time series) from the generator, and ...
11
votes
2answers
1k views

Cheap Wired Multipoint Mesh Network

I'm looking to make a 15 x 15 grid of load sensors and RGB LEDs for an interactive dance floor. Each node will be driven by an arduino and the entire floor will be managed by a RaspberryPi. I'm trying ...
1
vote
0answers
730 views

How to send data from cc3000 to herokuapp server

I tried this code: #include <Adafruit_CC3000.h> #include <ccspi.h> #include <SPI.h> #include <string.h> #include "utility/debug.h" #include "DHT.h" #include<stdlib.h> //...
3
votes
1answer
1k views

Bluetooth Master and Slave to track device's locations

I'm trying to create an app for my science fair that uses bluetooth to track people in a determined place. I was thinking about one Arduino system to receive all the information and transmit through a ...
5
votes
1answer
91 views

How do I remotely acquire data from Arduino based portable device?

I am making a device which will have an Arduino board and a sensor attached to it. The sensor will acquire data every 10 minutes and the data will be uploaded to my server. The size of every upload is ...
5
votes
5answers
11k views

Is it possible to transmit using an NRF24L01+ without an Arduino?

I have two NRF24L01+ modules which are transceivers, but for my project I would like to send a very simple signal from one of these modules to the be read by the other. That would've been very simple ...
5
votes
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 (...
2
votes
1answer
631 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. ...
1
vote
2answers
999 views

Modbus Protocol Compile Error

I have Code for Mod bus Library as below. I have Gone through lots of forum. How to assign device ID, slave address, length using below library function: #include <SimpleModbusSlave.h> #define ...
6
votes
2answers
547 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.
14
votes
5answers
4k views

How to connect two Arduino without shields?

I'm planning an Arduino system that consists of several Arduino boards. The maximum distance between the boards is about 50 meters. I want to send basic data between these, like short strings or ...