Working of sensor Items tagged with Working of sensor
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)
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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)
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Other Tags: digital visitor counter working of sensor
Posted by Ritesh on Sat Jul 14 2007, 02:09 pm
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???????
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Other Tags: automatic room light controller with visitor count digital visitor counter working of sensor
Posted by isha on Fri Jul 13 2007, 02:31 pm
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