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  1. mod

    Running LED - all LED turn ON when reach the last LED?

    i have a schematic of running led (image on attached file), on that project, LED will light on from 1st led, one by one ,until it reach the last led, and repeated. My homework is, make all 16 LED's Light on (together) when it reach the last led. how can i make it possible? please tell me some clues.
  2. mod

    Transistor as switch with "Incandescent Lamp as load"

    usually i used Led as load with dc voltage for input. now, i'll use incandescent Lamp as load, with dc voltage. what i'll do first? and one more, anyone have a diagram circuit of transistor as switch and use potentiometer on the circuit?
  3. mod

    Using 2 Sevent Segment to display only 0-15 decimal

    my teacher ask me to create project using 2 sevent segment to display only 0-15 decimal. but i think if using 2 sevent segment, the display will show 0-99 decimal. It's possible to display only 0-15?
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