For question related to environment with networks.
0
votes
0answers
9 views
Problem with interoperation between PubSubClient.h and Wiegand.h
I am playing with a card reader which communicates over Wiegand protocol with Arduino. In order to make it possible I am using Wiegand.h library, but I also want to use in the same project mqtt client,...
3
votes
0answers
30 views
2G/3G vs 4G/LTE Cell Connectivity for Sensor Prototype?
Would love any advice on Arduino cell connectivity. From what I understand:
2G (GSM/GPRS) is a dying technology. AT&T is shutting down its 2G network on Jan 1, 2017.
2G (CDMA) will have a longer ...
-1
votes
2answers
23 views
MAC address arduino
The MAC address is hardwired onto the NIC card when a device is manufactured. How is it that, we get to set a 48 bit MAC address of our choice while programming the arduino ?
2
votes
0answers
65 views
Arduino Mega 2560 + ESP8266 Problem with GET Request
I have an ESP8266 module connected to my Arduino Mega 2560. My goal is to send a GET request as below to the network:
api.pushingbox.com/pushingbox?devid=vEB39F555B1B8295?tempData=cabbages
If that ...
0
votes
2answers
129 views
Cannot ping ESP8266's IP address from a computer on the same network
I have an ESP8266 module connected to my Arduino Mega 2560. I sketched a simple code to pass whatever command I typed from the Serial Monitor to ESP8266 and vice versa:
void setup() {
Serial.begin(...
0
votes
1answer
38 views
where does access point's IP address come from for sketch AP_SimpleWebServer.ino in Github WiFi101 examples
I don't understand where the access point's IP comes from.
Sketch uses WiFi.beginAP( ssid ) ..to start the AP.
Then, printWifiStatus() gets the access point's IP with:
IPAddress ip = WiFi.localIP();...
1
vote
1answer
156 views
POST data from Arduino to website
I am working on a project where I am trying to send data using HTTP and POST method from my Arduino Mega2560 to a website which I host on localhost. I am living to a students' accommodation and thus, ...
0
votes
1answer
27 views
User-Agent question
I've seen a few different User-Agents used in demo sketches and am curious as to what the various User-Agent options are and how to determine which one to use.
For example...
User-Agent: Mozilla/...
0
votes
1answer
26 views
How to use Aiduino module to connect to computer network?
I have 4 usb Hard Drives and I just want to connect them to computer network directly without a traditional computer. Is there an any module with 4 usb ports and one RJ45 port. The module should able ...
1
vote
1answer
72 views
XBee series 1 or 2? [closed]
I'm looking to buy some components to my master thesis: I have to create a sort of lab where I'll create a Zigbee network and some tasks on it.
I'm wondering if I should buy XBee series 1 or 2 and ...
0
votes
1answer
417 views
Unable to Communicate Between ESP-12E Module and Mobile Through ESP-12E Router
I am newbie in Arduino, I trying to send data from Esp-12E client module to mobile over an IP via ESP router module (I am using Arduino IDE for programming Esp-12E).
For this purpose I successfully ...
1
vote
1answer
414 views
Arduino 4G LTE Shield
Is there by any chance a shield that can take an 4G LTE compatible SIM card activated by a carrier and establish a connection?
0
votes
0answers
28 views
Connecting an Arduino Uno to a home network for the purpose of transmitting small amounts of data?
I am trying to create a simple RFID read system that will be used for time keeping. When the card is scanned, I want the system to push the time and card data to a server. So far I have two potential ...
4
votes
1answer
147 views
RFID/NFC Tag get data from wordpress MySQL
I have a local workshop for students to teach them 3D printing/woodworking
I want to know if its possible to create RFID/NFC tags using wordpress data from MySQL or HTTP/HTTPS.
Web Scenario :
I ...
0
votes
1answer
59 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
vote
2answers
227 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 "...
0
votes
0answers
105 views
Migrated - SNMP Get lag on Arduino Mega 2560 - hardware limitations or poor code?
I posted this question in the main Stack Overflow page 2 days ago, but found out this sub only later and decided I might be missing people who know the answer but visit mainly this page, that's why I ...
1
vote
1answer
205 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) ...
0
votes
0answers
209 views
Unable to recieve UDP data using arduino mega 2560 with enc28j60
I am newbie with Arduino and I am using Arduino mega 2560. I am trying to send and receive UDP data using enc28j60 Ethernet sheild. For this i download library and sample code from here. Now I load '...
0
votes
3answers
432 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
vote
0answers
78 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
votes
1answer
123 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
257 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 ...
3
votes
1answer
149 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 ...
0
votes
2answers
361 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
vote
0answers
46 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
0answers
492 views
Arduino MEGA and ESP8266
Hi I am Using ESP 8266 to Send Serial Data To My Arduino Board using single click ( or post Action )..... My arduino mega controls 6 lights by reciving a character....
for example:
if i type 'U' in ...
0
votes
1answer
96 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
131 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
59 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
46 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....
1
vote
0answers
378 views
connecting arduino+wifi shield to laptop hotspot without router
I am trying to connect my arduino to my laptop by wifi connection.
therfore I combined an Arduino Uno and a WiFi shield (official).
On the windows 8 laptop I am starting a hotspot.
To start the ...
1
vote
0answers
2k 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
108 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
2k 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
114 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 make a TCP connection with the board and successfully send some string to the board.
The problem is , there is a int ...
2
votes
1answer
625 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
580 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. ...
2
votes
5answers
8k 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
433 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
589 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
335 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 ...
2
votes
4answers
1k 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 ...
10
votes
2answers
709 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
623 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
859 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 ...
3
votes
1answer
76 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 ...
4
votes
5answers
5k 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 ...
4
votes
1answer
3k 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 (...
1
vote
1answer
320 views
Ethernet sheild 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.
...
