Discussion in "8051 Discussion Forum" started by    hitesh19872419    Sep 2, 2010.
Thu Sep 02 2010, 06:02 AM
i saw that many of the beginners are facing problems with seven segments so i have made a small c code which will help you to know more about the seven segment multiplexing technique the rar file contains source code and isisi simulation file
 shaikajay_bhargav like this.
Tags multiple 7-segment displaysmutiplexed 7-seg display7-Segment LED display7-seg display example7-seg display code
Thu Sep 02 2010, 06:24 PM
Nice example hitesh

even i want to put up a tutorial for 7-segment display but i am not getting time. always short of it.

I will make this a sticky thread in 8051 Forum

[Topic moved to 8051 Discussion forum]
 romel_emperado like this.
Thu Oct 21 2010, 04:41 AM
wow.. thanks for sharing.. i will study this
Thu Jun 02 2011, 01:05 PM
Thanks for the share Hitesh. it looks very helpful but I could not open the proteus file, I am using version 7.1 sp2, how can I open the file, what is the version. would you please help me
Thu Jun 02 2011, 01:15 PM
use higher version than you're currently using

[ Edited Thu Jun 02 2011, 01:32 PM ]
Fri Jun 03 2011, 06:17 AM
ok romel thank you I will try install a higher version
Sat Oct 08 2011, 09:08 AM
Thanks for the share Hitesh. it looks very helpful but did have .asm equivalent code
Sat Oct 08 2011, 04:08 PM
@ hengela
can download latest version
Thu May 24 2012, 12:48 PM
This is simple led blinking program try it out


This project will blink a LED on Port 2 of any 8051 based Microcontroller

You can open this project 'led test.Uv2' in Keil Compiler

Download Keil for C51 MCUs from http://www.keil.com/

Connect a LED in this way:
Anode of LED should go to VCC via a current limiting resistor can be any value beween 470 Ohm to 1K
Cathode of LED should go to any Port 2 pins of MCU
For 40 pin AT89S52 or similar Port 2 is from Pins 21 to 28

470-1K LED
VCC o----/\/\/\----|>---o Any pin on Port 2


sfr P2 = 0xA0;

void delay()
int i;


void main()
P2 = 0xFF;
P2 = 0x00;

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