Project JK-FF with Clear Button

302

02:23:47

At starting wait for few seconds to stabilize all ICs.
Any counter without Clear (CLR) Button is useless. You can't clear counting at your desire. So we made a  JK-FF by NAND Gate with Preset and Reset Button.This 0-39 counter is running on our JK-FF.

 Preset point is fixed with Logic source 1 and Reset / Clear (CLR) Button is located just below the display. At any point if you make the Reset Button 0 then then FF will be Clear and show 00. Again on Reset 1 counting will be start from 01.

published 3 years ago

longlivelavey

3 years ago

What happens if it goes over 99?

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