automatic room light controller with visitor counter

the transistors are used to drive the common cathode of each 7 segment display,

the displays here are used with multiplexing technique means there is only one display works at a time but it shifts so fast therefor all display works simultaneously

the two LDR's here use for input as active low. means initially it is in high state (1)and it get input by grounding the pins (or 0)
... Read Compelte post
Posted by Ritesh on Sat Jul 14 2007, 08:39 AM

automatic room light controller with visitor counter

plz tell me that which microcontroller is used in the project "automatic room light controller with visitor counter" ?? In the description of the project 89c2051 is mentioned but in the circuit diagram 89S52 is used???????
... Read Compelte post
Posted by isha on Fri Jul 13 2007, 09:01 AM

Conversation

Sun Jan 23 2022, 10:26 AM
Horny Shriya
Horny Shriya sent you 2 pics yesterday. She is online now.
Fri Jan 21 2022, 09:56 PM
RichardApold
12345
Tue Jan 18 2022, 05:50 PM
Gertie
We are professional wholesale dealer of jerseys, customized in supplying Inexpensive Jerseys and customized jerseys. Jerseys using 100% stitched real quality, all Amounts, Logos and Names are sewn on and embroidered. best places to buy nfl jerseys
Sun Jan 16 2022, 06:42 PM
Horny Shriya
Horny Shriya sent you 2 messages yesterday. She is online now.
Sun Jan 16 2022, 06:37 PM
Horny Shriya
https://sexlovers.club/chat/HornyShriya/

Downloads

Comments

Mirza123
Thu Jun 25 2020, 03:46 PM
eunicelove124
Mon Jun 22 2020, 03:03 PM
cerouno
Tue Jun 16 2020, 05:10 PM
Marce
Sat Jun 13 2020, 09:43 PM
Davidthils
Thu May 21 2020, 12:44 PM
Jakeror
Thu May 21 2020, 01:28 AM
motorCar
Wed May 20 2020, 07:05 PM
Vordrync
Wed May 20 2020, 11:52 AM

Online

Guests: 71, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 38215
Newest member: Mirza123