Led interfacing with microcontroller Items tagged with Led interfacing with microcontroller
DOUBTS about wiring circuits
There are two ways you can connect LEDs to controller port.
1. Active High Logic
2. Active Low Logic.
1. Active high logic means LED will be on when port pin is 1 and LED will be off when pin is 0. In this type of arrangement, LED is driver from port pin of controller if port pin does not have enough current then a pullup is used on.
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1. Active High Logic
2. Active Low Logic.
1. Active high logic means LED will be on when port pin is 1 and LED will be off when pin is 0. In this type of arrangement, LED is driver from port pin of controller if port pin does not have enough current then a pullup is used on.
... Read Compelte post
Other Tags: interfacing LED to controller active low led circuit active high led circuit led interfacing with microcontroller
Posted by ajay_bhargav on Tue Sep 07 2010, 07:48 pm
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