automatic room light controller with visitor counter

ok... setting up the timer is very simple. putting value in register is same like moving value to a variable. you can open the file you included "AT89X51.H" and see how the registers have defined in it.
so timer can be set like this way...
TMOD = 0x20; // timer mode setting
TH1 = 20; // put value in Timer 1 high byte
TL1 = 3; // put value in Time 1 low byte
TR1 = 1; // run the timer

this way you can ... Read Compelte post
Posted by ajay_bhargav on Wed Jul 25 2007, 09:19 AM

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Wed Oct 23 2019, 05:49 AM
latamdatewsc
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Wed Oct 23 2019, 04:03 AM
Trey Carswell
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Sun Oct 13 2019, 02:02 AM
Aline Hutchinson
Hey there,
ExperimenterUK
Sat Oct 12 2019, 10:23 PM
Log in.. then post your code in the 8051 forum
Sat Oct 12 2019, 10:18 AM
Bhadra Sajikumar
i am doing a countdown timer with 8051 for my project, unfortunately our professor had to take a leave of absence before he could teach us most of it.. can someone explain the .asm code of it for me?
Mon Sep 23 2019, 07:37 AM
Nathaniel
I am doing a project for my schools wireless security system with cameras,sensors and spot lights using 8051 micro controller, could you help me out with the design and its source code.
Wed Sep 18 2019, 08:48 PM
Caryn Kover
Thank you for your time,
ExperimenterUK
Mon Aug 05 2019, 07:09 PM
@Ismail ..post in forum, give details
Mon Aug 05 2019, 04:33 PM
Ismail balghmi
Hello. Please I won't download
ExperimenterUK
Wed Jul 24 2019, 12:47 AM
@BUSTER123 Please post in the forum

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Mon Oct 21 2019, 09:18 AM
I’ve been following this thread and looking at the...
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sir, when i on display ,sometime 3rd display is no...
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Sun Oct 20 2019, 02:53 PM
sir, when i on display ,sometime 3rd display is no...
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Your code seems okay on my simulationTry my code o...
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Sat Oct 19 2019, 07:13 PM
please find video attachment. 3rd & 4th displa...
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sir, 3rd and 4th dot matrix display flickering, ...
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Fri Oct 18 2019, 09:18 PM
Hopefully you understand some of the program.Which...
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