OK dear the topic is now veering off to a different area.

But irrespective of your skill levels just try out this scheme to connect LEDs to MCU port pins. A very safe way.( Image courtesy : Mr Michael Karas )




And if this sounds too much of trouble you can just connect a 330 Ohms Resistor to Vcc and connect the other end to the anode of a LED and the Cathode to the port pin. And in this mode I would not connect more than may be 2 or 3 LEDS - I have no idea of cooking up the MCU. And just remember the LED will come ON when the port pin goes low.

Raghu