Comments on: RS232 Communication – The Basics

By: Husam

Husam — Sun, 08 Jan 2012 06:27:30 +0000

Thanks Avinash.

By: manupriya

manupriya — Wed, 28 Dec 2011 15:20:05 +0000

thank you Avinash, this is a fantastic tutorial. I learned lots of thinks from this. So keep it up. Thank you very much again……

By: Davis Jose

Davis Jose — Sat, 25 Jun 2011 08:08:57 +0000

I like to interface a RF module with PIC18f8722 through RS232. Hope you can help me in this.

By: RS232 Communication – The Level Conversion | eXtreme Electronics

RS232 Communication – The Level Conversion | eXtreme Electronics — Thu, 02 Jun 2011 04:53:10 +0000

[...] RS232 Communication Basics [...]

By: Michelle

Michelle — Thu, 02 Dec 2010 06:30:39 +0000

I found this really simple to understand an would like to see more tutorials .
i also would like to know how to interface a PIC18F MC o a breadboard to a PC an also wat software to use to see the desired output of the microcontroller . i need to know this for my project on eectronic glove using flex sensors which senses the finger movement and displays the coressponding alphabet on the screen .

thankyou

By: Interfacing RFID Reader with AVR MCUs - AVR Tutorial | eXtreme Electronics

Interfacing RFID Reader with AVR MCUs - AVR Tutorial | eXtreme Electronics — Fri, 17 Sep 2010 07:15:59 +0000

[...] RS232 Communication Basics [...]

By: Ahmed

Ahmed — Thu, 19 Aug 2010 05:19:37 +0000

thanks a lot , really good and simple tutorial . i am starting with AVR , and i am glad that found your tutorial that soon ,

keep on!!!!

By: Caio

Caio — Thu, 05 Aug 2010 14:08:23 +0000

Wow! Your tutorial is very good! Thank you so much for making me understand! Yeah! Yipee!

By: bhavin

bhavin — Sat, 10 Jul 2010 16:39:08 +0000

your tutorials are good and have helped me a lot

By: Aditya

Aditya — Fri, 09 Jul 2010 15:16:58 +0000

gud tutorial..
it really interesting….

By: Avinash

Avinash — Fri, 09 Jul 2010 07:08:41 +0000

@Abhishek
The NEXT Tutorial is here

http://extremeelectronics.co.in/avr-tutorials/rs232-communication-the-level-conversion/
http://extremeelectronics.co.in/avr-tutorials/using-the-usart-of-avr-microcontrollers/
http://extremeelectronics.co.in/avr-tutorials/using-the-usart-of-avr-microcontrollers-reading-and-writing-data/

By: Abhishek

Abhishek — Tue, 06 Jul 2010 16:44:45 +0000

where is the next tutorial?

By: Sameer

Sameer — Tue, 25 May 2010 08:55:46 +0000

Hi Avinash,

If receiver is not ready and there is no handshaking, how transmitter and received can be synchronized? Receiver could be ready at any point during data bits also and can treat any low level as Start bit and thus will always read wrong data. Any idea about how to synchronize such a system without handshaking?

Regards,
Sameer

By: RS232 Communication using PIC18F4520's USART - PIC Microcontroller Tutorial | eXtreme Electronics

Tue, 11 May 2010 04:14:38 +0000

[...] RS232 Communication Basics [...]

By: Sunil

Sunil — Tue, 13 Apr 2010 05:21:57 +0000

Hi Avinash,

If you have any basic information on RS485, can you please post it.

Regards,

Sunil

By: xxgeneral

xxgeneral — Thu, 08 Apr 2010 08:49:58 +0000

hi, may i ask u a question?
if following condition is satisfied,
start bit =0;
stop bit =1;
data bits=8;
no parity;
then rs232 may encounter some problems, when transmitting 10101010 followed by 10101111 as below.
0,10101010,1,0,10101111,1,…

Assume that rs232 missed start bit of “0,10101010,1″,then it will start at next “0″.It’s 101010,1,0,1.Now, rs232 will receive a wrong number but without error report.

How to resolve this kind of problems?Does it mean that rs232 is not so much reliabel?

Thanks a lot!

Regardly
xxgeneral
2010-04-08

By: Sunil

Sunil — Thu, 01 Apr 2010 07:50:03 +0000

Hi Avinash,

Thanks for the excellent information of RS232 basics.
It is really Awesome !!!!!!!
If one goes through this tutorial, then the he will never be in need to refer sometime later again on this protocol. It gets embedded permanently in the brains.

Thanks

Sunil

By: Abhishek

Abhishek — Sat, 27 Mar 2010 07:50:07 +0000

Thanks a lot dear…
Such a gr8 tutorial!!!

By: Avinash

Avinash — Thu, 04 Mar 2010 03:43:53 +0000

@Kamran Where it is written ???

“baudrate=25; when baudrate is 2400″

By: kamran

kamran — Wed, 03 Mar 2010 19:30:58 +0000

sir, thanx 4 all the info u provided……very useful…..
my ques is that wat does this mean….
baudrate=25; when baudrate is 2400….
wat hav to b writtten for 9600…. and by which criteria…
regards