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Parking sonar, probleme in functionare


costy

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Schema este asta:

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La alimentare, fara traductori(tx/rx ) conectati, ramane un singur led aprins. Eu din cate am inteles ar trebui sa se aprinda succesiv toate ledurile.

Schema este descrisa aici

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Daca aveati curiozitatea sa parcurgeti datasheet-ul lui 4017 ati fi aflat ca acesta e un numarator decadic cu iesire decodificata; adica "scoate" "unu logic" (plus) pe rand pe iesirile Q0, Q1, etc.Schema functioneaza probabil (nu am citit descrierea), pe faptul ca atunci cand obstacolul e departe, numaratorul ajunge si el "departe" (Q9) iar pe masura ce distanta scade numaratorul ajunge sa faca tot mai putini pasi.Fara traductori aparatul nu functioneaza...

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