SENDING DATA TO MICROCONTROller USING network (UTP cable RJ45)

need help sir. how can i send data to micro controller using visual basic program into a network! kindly please give some idea

You mean you want to communicate with controller over network? Or you want to send controllers data over network through PC software. Please explain your question in detail

i mean sir I want to send data from PC to microcontroller using network as a communication line..
then i can control what data to send using PC application made in visual basic! ...

Which controller are you working on? Does it have Ethernet port? And most importantly... A TCP/IP stack?

im using 2051 or 4051 microcontroller sir. maybe with ethernet port use in device.. without using tcp/ip stack.
i just planned to output my desired data to ethernet port of the PC using vb program.
[if im going to use tcp/ip stack. what am i going to do to make interaction between my device and the Pc.]

The only practical way for a beginner is a serial to Ethernet module like this on ebay.
Note,you need serial to Ethernet NOT spi to Ethernet.



eBay item number:
13068335598
or even this WiFi version.

eBay item number:
400551970923

im not familiar using that device sir. just exploring for my final project

8051 is too small for this purpose as for Ethernet you need good amount of RAM and an Ethernet controller chip. 1K+ of ram is needed on controller with TCP/IP stack. without stack you wont be able to communicate to PC application. however your packet may be seen on capture applications like wireshark etc.
You can take a look at ENC28J60 ethernet controller over SPI.

is it possible to communicate with the device without using stack. ..i saw a project in the post they also use network to control the angle of the motor or the rotation

is it possible to communicate with the device without using stack. ..i saw a project in the post they also use network to control the angle of the motor or the rotation

engr1931

The serial devices I mentioned don't need a stack.
They are just a serial connection (serial uart type) at the controller end.
You will need some knowledge of using ports at the PC end.
Using any other method will need a stack and will be hard