this is a circuit diagram of a two way counter. http://www.scribd.com/doc/13394345/shankarnitian
i would be glad if someone could explain me the functioning of the 1k resistor in series with the green and red leds,function of 10uF in parallel with reset switch,the significance of using two 22pF capacitors with the crystal oscillators ,and how can i interface the output of the microcontroller to the seven segment display?
Last edited by a moderator: