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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ExperimenterUK
Mon Jan 07 2019, 03:31 AM
@REVOCATUS please post in the AVR forum
Mon Dec 24 2018, 09:25 AM
REVOCATUS MATEMU
sorry I mean referee boards for player substitution
Mon Dec 24 2018, 09:24 AM
REVOCATUS MATEMU
hi am.looking how to build referee by using Atmega 328 and its codes
Sat Dec 15 2018, 01:45 PM
Arslan ayoub
Hii ,, can I get the simulation of numeric keypad lock on proteus
ExperimenterUK
Mon Dec 03 2018, 05:17 PM
Please post questions in the forum. The chat box is for chat
Mon Dec 03 2018, 06:43 AM
help!me!
help! I don't understand busy flag!
Sun Dec 02 2018, 08:01 PM
ile
hello
Mon Nov 12 2018, 05:58 AM
Pavan_user
i have seen your replica of I2C programming using AT89C51 but i am unable to understand the "ack_bit" variable usage ...looks like it is always 1...can you elaborate how acknowledgment is working....
bgk3678
Tue Nov 06 2018, 02:36 PM
kindly any one give solution for my problem
ExperimenterUK
Mon Nov 05 2018, 09:48 PM
Pins high is the normal state. You need a program to set them low

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servprov
Thu Jan 17 2019, 06:44 AM
sandhyashree
Wed Jan 16 2019, 04:04 PM
SONACHAI1234
Sun Jan 06 2019, 08:14 AM
manan.gulyaani
Tue Jan 01 2019, 07:58 AM
etech
Sun Dec 30 2018, 07:44 PM
NeilC
Sun Dec 23 2018, 07:39 PM
darkgonzo
Fri Dec 21 2018, 08:30 AM
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Wed Dec 19 2018, 04:54 AM

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ExperimenterUK Avatar
Posted By ExperimenterUK
Sun Jan 06 2019, 10:37 PM
Which 8051 chip are you using ?
SONACHAI1234 Avatar
Posted By SONACHAI1234
Sun Jan 06 2019, 08:21 AM
Hi,By mistakenly i burn rx program in my 8051 micr...
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed Dec 19 2018, 06:27 PM
Nobody knows?sifirsekizThe problem is that you are...
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Posted By sifirsekiz
Wed Dec 19 2018, 12:15 PM
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Posted By sifirsekiz
Sun Dec 16 2018, 11:13 PM
Guys pleaseeeee :((
sifirsekiz Avatar
Posted By sifirsekiz
Sat Dec 15 2018, 07:09 PM
HiThe pulse-sensor-amped has an analogue output.Th...
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Posted By ExperimenterUK
Sat Dec 15 2018, 07:01 PM
HiThe pulse-sensor-amped has an analogue output.Th...
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Posted By sifirsekiz
Sat Dec 15 2018, 09:02 AM
and ı have pulse sensor one out but anolog use 805...
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Posted By sifirsekiz
Sat Dec 15 2018, 08:56 AM
HiMembers can supply code and diagrams if they wan...
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Posted By ExperimenterUK
Fri Dec 14 2018, 11:54 PM
HiMembers can supply code and diagrams if they wan...