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pic 16F877A is always burning when i used it in LIGHT TRACKER CAR

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allen,
Here is the exemplary circuit diagram for your query and the guidance in above posts.
snap.jpg
Hope it helps.
 

In the above circuit, resistor should be in series, not in parallel as shown.
25_1328077560.jpg
 

In the above circuit, resistor should be in series, not in parallel as shown.
Click to expand...
This is DAMPING purpose and not for Current limiting.
 

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