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Useful articles on circuits, systems and Microcontrollers

Here are some useful articles on electronics and microcontrollers.

PIC micro programming methods.

Digital I/O expansion methods.

PIC timer calculations.

Frequency counter techniques: Direct and Reciprocal counting methods.

Simple multitasking method (works for 12F675 and larger).

Microcontroller Debugging methods (also general debugging methods).

Fixed point maths

Hardware interrupts - a short introduction.

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