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Questions tagged [tcpip]

This should be used when referring to the transmission protocol TCP/IP.

TCP/IP (Transmission Control Protocol/Internet Protocol) is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network (either an intranet or an extranet). Should be used when the question is about implementing or using TCP/IP.

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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). In either case (wired or wireless), what…
Bob Stein
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Which shield to use for GPRS?

I'm planning to build a device that would read some sensor data and send it via GPRS, eg. once per day. (Not that original, yeah.) But my problem is choosing a GSM/GPRS shield. The official shield has a nice interface for doing an HTTP POST/GET.…
tuomassalo
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Ethernet shield and IPv6 support

Have you heard about support for IPv6 protocol for any Ethernet shield? As far as I know only IPv4 is supported. Maybe some one would like to write library?
Max
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Modbus TCP/IP using Arduino uno and ENC28J60 module

I have this project where I need a modbus tcp server that will host a series of sensor data for other modbus client devices to read. I use this Library by Andresoarmento This is the code i am using from the library example: #include…
Deadpool
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Multiple client server over wifi

Trying to setup a server on Arduino to support multiple clients, I am able to support one but I don't want to flush that client to make another connection. #include const char* ssid = "your-ssid"; const char* password =…
user28203
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How to listen to multiple server ports with ESP8266?

I'm using WeMos D1 R2. I'm trying to listen to both ports 1992 and 1993. This is my current code: #include WiFiServer server_1992(1992); WiFiServer server_1993(1993); void setup() { Serial.begin(9600); WiFi.begin("MySSID",…
MoonFan
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How to send 0x1A as data via TCP on SIM8xx?

I am using a SIM868 module with an Arduino Mega, where the SIM868 is connected to Serial1. After establishing a TCP connection, I need to send the following byte stream: {0x60, 0x1A, 0x9D, 0x01, 0x00, 0x00, 0x07} I am attempting to send this data…
Shekhar Saha
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ESP32 HTTP Server request interrupts Telnet session

I have an ESP32 application that uses a web server as a user interface. For auditing and debugging during development I use Serial; however, that is impractical in the installed system. So, I decided to use Telnet (TCP/IP) to monitor what is…
Eric Vortriede
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Data transmission Serial to TCP

I am trying to send numeric data using ESP8266 to local network python server. Before that I am collecting data from sensors using Arduino UNO and then send it to ESP using hardware serial. ESP8266 code: #include const char* ssid …
Austris
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Is there any good working MODBUS TCP master library available for Arduino?

I would like to connect with Fronius solar inverter through MODBUS TCP with Arduino to READ and WRITE register values only. I want to set the Arduino as master and the Inverter as slave. I want to use only two functions "Read Holding Registers" and…
Prayuktibid
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How to run TCP socket server on Arduino Uno WiFi?

2017-03-23 update I still don't know why it works so well on Yún. Maybe it has a better antenna? Anyway, I've returned Uno WiFi and got a SparkFun ESP32 Thing. Unfortunately, it has the same problem as Uno WiFi. To fix it I've switched from TCP to…
Maciej Konieczny
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Scan IP address of ESP8266

I am working on a project in which, the mobile app/browser sends HTTP command to ESP8266 in AP mode. The default IP address of ESP is 192.168.4.1. Therefore in order to connect the ESP to WiFi, the command goes like this :-…
MICRO
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TCP communication between Arduino client and server

I'm currently trying to build an Arduino robot controlled via a wifi connection. I have an Arduino Mega running as a client and it successfully connects to the server on LAN via the Adafruit cc3000 wifi board. However instead of grabbing the…
ComplexConjugate
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ESP32 with static IP address acting as client connecting to ESP32 acting as access point

I have an ESP32 board as a client with a static IP address. The client with the static IP address connects to a second ESP32 that is acting as an access point. The connection is established and the access point recognizes the new connected…
Carlos Costa
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Is there any way to catch the response of SIM800L after sending the at command?

I am using sim 800l with arduino. I am successfully sending AT command from arduino, not in serial monitor but I am unable to catch the response after each successful command execution if its ok or not. I want to do that because, if there is an…
Angkon
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