This Project "Automatic Room Light Controller with Visitor Counter using Microcontroller" is a reliable circuit that takes over the task of controlling the room lights as well us counting number of persons/visitors in the room very accurately. When somebody enters into the room then the counter is incremented by one and the light in the room will be switched ON and when any one leaves the room then the counter is decremented by one. The light will be only switched OFF until all the persons in the room go out. The total number of persons inside the room is also displayed on the seven segment displays.

The microcontroller does the above job. It receives the signals from the sensors, and this signal is operated under the control of software which is stored in ROM. Microcontroller continuously monitor the IR Sensors, When any object pass through the 555 timer generates a pulse and interrupt controller. So visitors in the room are counted up by Sensor1 and Sensor2 counts visitors going out of room. As soon as visitor count reaches 0 the room light turns off.

We already had this project in our download section but Anudeep (bobdxcool) had made it working. Thank you so much for sharing this project back.

Here is a working video of project shared by Anudeep:


You can download this project here:
Automatic Room light Controller with Visitor Counter
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Mon Jun 12 2017, 07:36 PM
madhusoodanan
how to receive string using 8051
ajay_bhargav
Thu Jun 08 2017, 05:48 PM
@Vinoth post in forum.
Wed Jun 07 2017, 06:40 AM
vinothkannan
how interface eprom in this code
Thu May 25 2017, 05:25 AM
Monir Hossain
Can i change the 7-Segment are common pin ? And how to?
Mon May 08 2017, 12:45 PM
ivan muvunyi
please can you send me wiring diagram for automatic control of 3 phase induction motor for production of maize flour
Wed May 03 2017, 08:39 PM
imran qureshi
hello friend
Sun Apr 30 2017, 05:49 AM
Lijin G Varghese
Can u send me the circuit diagram for Program to interface GSM Module with 8051 microcontroller (AT89C51) using PC and LCD
Fri Apr 28 2017, 03:47 PM
SANDEEP T S
I need pcb wizard 3.5 version kindly send valid link of yours
ExperimenterUK
Mon Apr 17 2017, 11:56 PM
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Thu Apr 13 2017, 07:29 PM
Piyush Aughad
I want circuit & program for radar detection using Microcontroller 8051

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richard1976
Sat Jun 24 2017, 05:48 PM
DruvaN
Wed Jun 21 2017, 11:44 AM
lalala
Tue Jun 20 2017, 11:05 PM
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Tue Jun 20 2017, 07:47 AM
firdaus0hsem
Sat Jun 17 2017, 04:53 PM
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Fri Jun 16 2017, 05:44 AM
madhusoodhanan
Mon Jun 12 2017, 07:31 PM
Aminookano
Sun Jun 11 2017, 05:50 AM

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richard1976 Avatar
Posted By richard1976
Sat Jun 24 2017, 08:47 PM
Hi can you tell me how to send and recieve usart d...
ExperimenterUK Avatar
Posted By ExperimenterUK
Sat Jun 24 2017, 08:24 PM
HiUnfortunately there is too much code here to wor...
richard1976 Avatar
Posted By richard1976
Sat Jun 24 2017, 06:01 PM
hi i have written this programme and can send data...
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Jun 23 2017, 08:19 PM
>Should I need to check PWR_VLD bits every time on...
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Jun 23 2017, 07:42 PM
I would say yes, but data transfer will be slower ...
Utsavi Avatar
Posted By Utsavi
Thu Jun 22 2017, 12:14 PM
Hello ExperimenterUK, Thanks for your support. Fro...
DruvaN Avatar
Posted By DruvaN
Wed Jun 21 2017, 11:51 AM
Is it possible to Use 8051 bit-banging method to p...
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Posted By ExperimenterUK
Tue Jun 20 2017, 06:27 PM
You could start by looking at this tutorial on ke...
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Posted By firdaus0hsem
Sat Jun 17 2017, 04:58 PM
I have an issue regarding how to use 4x3 keypad to...
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Posted By amir9297
Fri Jun 16 2017, 05:47 AM