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rotary encoder - decoder


luciann

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Salut,

 

Exista o schema simpla prin care sa pot folosi un rotary encoder in asa fel incat atunci cand il rotesc spre dreapta sa faca cate un simplu contact la fiecare 'treapta' prin care trece, iar cand il rotesc spre stanga sa faca la fel, dar pe contacte diferite? am atasat un mic desen

 

 

 

As evita arduino sau alte posibilitati care cer programare, daca exista o alta solutie relativ simpla.

 

Multumesc frumos

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exista. Cu un bistabil JK (7474) si inca cateva piese pe langa el. Exact aceeasi chestie o face si programul scris in microcontroler.

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prima schema are dezavantajul ca daca encoderul ramane cu un contact la masa, iesirea ramane activa. La pornire are acelasi dezavantaj. Astabilii 74123 elimina acest dezavantaj in schimb limiteaza viteza cu care se poate roti encoderul.

 

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