TCP/IP is the suite of protocols used by the Internet and in many other networked systems. Please ensure questions fit within the scope of the site and do not relate to general protocol or networking questions.

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0
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1answer
51 views

How does the TCP/IP stack interact with Wifi components?

I'm trying to transition beyond Arduino and I'm trying to learn how to use an RTOS (like FreeRTOS) to connect to the web via Wifi. It seems that FreeRTOS and ZentriOS and other RTOS supply TCP/IP ...
3
votes
1answer
323 views

Posting to php server using SIM900 GPRS with AT commands

I am using a SIMCOM SIM900 GSM/GPRS module in an embedded hardware application. Rather than sending device data to a server by SMS (what I've been doing so far) I want to switch and start using GPRS ...
-1
votes
2answers
145 views

ADC/DAC module with TCP/IP communication [closed]

I have a project: conception and realization of a module that converts Analog to digital signals (A/D converter) and digital to analog signals (D/A converter). To communicate with this module, I will ...
2
votes
1answer
81 views

Adding Wi-Fi to a TCP/IP application that is already running with Ethernet

What to do if you have an Ethernet application that is already up and running with TCP/IP functionality and now you want to add Wi-Fi. Most of the Wi-Fi modules available have embedded TCP/IP stacks ...
2
votes
1answer
400 views

SIM800 - HTTP Get request time out

I've been working on a weather station project, and I used a SIM 900 module to upload the data to a web server. Recently I started using a SIM800-DS for the same purpose and I had to rewrite the code ...
1
vote
3answers
165 views

FPGA TCP Connection

Is it possible to have a TCP connection with an FPGA? I need a low power device that can control relays based on Ethernet packets that are received and send back confirmation packets.
0
votes
2answers
122 views

Switching AC or DC signal via TCP/IP [closed]

What is the cheapest/easiest way to switch an AC or DC signal of at least 10 V via TCP/IP? I have 5 measurement devices which can be triggered over an 0-250 V AC/DC input (switching threshold 10 V). ...
0
votes
0answers
67 views

MRF24WG0MA driver

I have a working embedded design that connects to the internet using an ethernet connection. I'm using an MCU that has the Treck TCP/IP stack running on it, wich drives the RJ45 connector but now I ...
10
votes
1answer
854 views

AT Commands to transmit data through TCP/IP stack with LTE network

I need to design an embedded sotfware that will drive a LTE cellular device (like u-Blox TOBY L2 Series) and its TCP/IP stack to transmit some data toward a distant server. I'm waiting for the device ...
-2
votes
1answer
49 views

Ethernet Generic Controller [closed]

I am a Software engineer and I need to make some program (TCP/IP client) that connect to Ethernet with more than one Ethernet controller devices (TCP/IP Server) that control some electrical components ...
0
votes
2answers
640 views

Is it possible to send AT commands through TCP?

I have a SIM900 GSM/GPRS device, I can send AT commands through HyperTerminal and everything is fine. I can configure GPRS connection through AT commands: ...
2
votes
2answers
171 views

Modem to Modem via GPRS

I am working on a GPRS communication design. What I want to do to connects two modems together via GPRS. But I found that i could not connect. I was able to connect both modems to the internet using ...
0
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2answers
801 views

TCP/IP stack for wifi module

I keep reading about TCP/IP stack for wifi module. I am having bit difficulty to understand that. I am working on hobby project in IoT and need to choose wifi module for Atmega328P. I heard about ...
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votes
1answer
401 views

LWiP Web Server: Running website using html files

Is there any way to run web server site on lwip library without conversion html to hex, but directly using html files?
0
votes
1answer
494 views

lwIP - Best way to send data from microcontroller

Currently, I am using Server Side Includes to transfer data from my microcontroller to my webpage. The issue with this approach is that if I want to graph the data I have to store the SSI value in a ...
0
votes
2answers
521 views

Serial Over IP or USB over IP?

Need to connect remotely to a device using cellular GPRS gateway. Device supports RS-232 and USB. It boils done to two options: 1.- Serial Over TCP/IP (Serial to Ethernet - to GPRS, or Serial to ...
2
votes
1answer
539 views

AVR Embedded Webserver + Time

I have the task of implementing an embedded webserver (using ATMega328). Broadly, the system would provide the following functionality Allow user to change system parameters using the web interface ...
0
votes
1answer
564 views

Losing sensitive data when trying to send them via GSM

I am working on a system which collects data from a set of ultrasonic sensors. Those sensors work at 40Hz frequency, and each data they send are valuable to me. I need to send those data to a mqtt ...
0
votes
1answer
2k views

TCP/IP stack library for ST microcontroller

I'm looking for a free function library, that implements TCP/IP stack for STM32F103CBT7 (Cortex M3) microcontroller. The datasheet of this controller is following: http://www.farnell.com/datasheets/...
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votes
2answers
115 views

Probing/monitoring ethernet traffic? [closed]

I'd like to monitore my home network for suspicious traffic. The simplest option would be my small switch, which allows to forward each and any traffic to a monitoring port. But that's too easy... ...
1
vote
1answer
60 views

Frame Size and Function

With regards to Ethernet frames, the typical maximum size is 1500 bytes. Jumbo frames brought this up to 9000 bytes, and there was even some Super Jumbo Frames of sizes larger than that. What factors ...
1
vote
1answer
482 views

512 channel LED strip controller over RJ45 (TCP or UDP based commands)

How would you make the following? I'm looking for a 512 channel LED strip (varying size) dimmer, controlled over TCP/IP or UDP. My dream board has: 512 individual channels @ 12V Each channel ...
-2
votes
1answer
609 views

Modbus TCP/IP slave - functions

I'm developing a slave modbus TCP/IP application on the PIC32 platform. Do you have any idea about the the role of the ...
-1
votes
1answer
81 views

Optimizing a Daisy Chained Asymetrical Wireless Radio Connection

I asked this question in network engineering but it has failed to get any responses, so I have brought it here for the wider EE community just in case anyone can speak authoritatively on the subject. ...
2
votes
1answer
965 views

Using Temac Core - XIilinx Virtex 5 board

I intend to send data packets from my PC to a Virtex-5 board over ethernet cable. I found three ways to achieve this -- 1. Use the Microblaze processor core, using the EDK and SDK tools. (However, It ...
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votes
1answer
439 views

Communication Speed, Tcp/Ip vs Serial [closed]

'm using a turnstile using TCP/IP Communication(RJ-45 cable) with my application. And it's taking about 20minuts to finish some functions (Like: Selects in the database, and set some configuration of ...
0
votes
1answer
84 views

Are Data Cards simply L1 (Physical Layer) Devices?

I was just wondering, how many levels of the TCP/IP (OSI) Stack reside within a modem or a 3G data card and other similar networking devices? These devices do have a physical (MAC) address, which ...
7
votes
3answers
4k views

Smallest PIC which the TCP/IP stack can be implemented

What is the smallest (size) PIC with internal oscillator available which the TCP/IP stack can be implemented (and used) successfully? Also, what is the smallest (size) PIC with internal oscillator and ...
-7
votes
1answer
354 views

how is TCP/IP protocol converted to electrical circuit [closed]

I am not an electronics guy (CS guy) I understand what TCP/IP is I want to know what things are done in manufacturing an IC that is able to send and receive packets. How is a chip which works for ...
3
votes
1answer
2k views

TCP/IP stack in Verilog

I am about to write a TCP/IP stack in Verilog. I would have thought this was a relatively common thing, and that implementations would readily be available online. The obvious Google search for a TCP/...
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votes
1answer
277 views

How can I attach gps chip to 3g chips? [closed]

I'm a software developer. Recently, my bike was stolen and I'm pissed off. The police is useless and what's in my mind now is how can I prevent this from happening again. What I want to do is, lets ...
4
votes
3answers
684 views

Wireless Sensor to Internet

Looking for a low cost implementation to post ambient temperature readings from a sensor to servers via a COTS router. 1) Have a temperature sensor connected to a micro controller which sends data ...
12
votes
4answers
5k views

SSL from a Microcontroller

I am wanting make an embedded device that can communicate with a web-server in a secure fashion. My preference would be for it to use standard SSL so the web-server views my device similar to a web ...
3
votes
2answers
2k views

Working with PIC to send data to server

I'm currently working with the flyport from OpenPicus, it has 24FJ256GA106 PIC processor in it and I was looking for the best way to send information from the flyport to a server. I want to know how ...
2
votes
2answers
431 views

Sourcing for low power stepper motor driver assembly. Which is best cost and host software wise?

For small batch production I am looking for small low cost product. Need it to be network controlled (Ethernet TCP/IP) with open documentation. The current is about 1..2..3 Ampere, voltage 24..48V. ...
2
votes
4answers
564 views

Looking for a PIC board with webserver [closed]

I am looking for a PIC which has a webserver builtin or has the ability to install one(with) . I want to experiment connecting in reasonable price please)two PIC/PICAXE boards or different type and ...
8
votes
3answers
7k views

Wiznet W5100 vs. Microchip ENCx24J600

What are pros and cons using Wiznet W5100 or Microchip EncX24J600? It's a bit complicated to explain. My question is about the performance of Microchip TCP stack vs Wiznet TCP/IP core on the chip. ...
47
votes
20answers
57k views

What is a good microcontroller for Ethernet applications?

What is a good microcontroller for doing Ethernet applications? Or do I just need a good Ethernet library to connect with an Ethernet MAC/PHY?