Compteur 1111 n15

178

01:42:24

L'ampoule ne s'allume que lorsque la combinaison des LEDs vertes donne: 1111=d'15   et F sur l'afficheur.

RES CLK D C B A
      0    P P P P
      X    0 0 0 0
          0 0 0 1
          0 0 1 0
          0 0 1 1
          0 1 0 0
          0 1 0 1
          0 1 1 0   
          0 1 1 1
          1 0 0 0
          1 0 0 1
          1 0 1 0
          1 0 1 1
          1 1 0 0
          1 1 0 1
          1 1 1 0
          1 1 1 1  combinaison LED ok
          0 0 0 0
 = montée de signal
X = 1 ou 0, peu importe
P = garde l'état précédent

published 4 years ago

wyoelk

4 years ago

Or like this _ http://everycircuit.com/circuit/5871471181955072

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