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HC-SR04 sensora gļuki -
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thread: HC-SR04 sensora gļuki

  1. #11
    Senior Member
    Mar 2007
    1,600

    Rekur uzgaaju sheemu tai fignjai.
    Tagad seezhu, domaaju - kaa tas vareetu darboties?

  2. #12
    Moderator
    Jan 2009
    Rīga
    4,423

    Rekur uzgaaju sheemu tai fignjai.
    Tagad seezhu, domaaju - kaa tas vareetu darboties?
    Obana! Tiko parāva uz korķi! No comments, bet ja tāds konceptuāli strādā... Lai strādā. Var pamēģināt sakārtot RESET ķēdi. Pin7 10K pullup to VCC; Pin7 kondensators uz zemi. Klasiska reset ķēde. Tas ir pirmais eksperiments. Tālāk pārliecinamies ka barošana nešupojas. Pieliekam teiksim 10 -50 uF kondieri paralēli C16.

    Paldies Next par shēmu.

  3. #13
    Moderator
    Jan 2009
    Rīga
    4,423

    Ui! Samelojos. Pieļauju domu ka C2 ir manis domātais elektrolīts. Tātad tikai eksperimenti ar RESET. Ja nepalīdz varētu būt arī kontroliera firmware problēma.

  4. #14
    Senior Member
    Mar 2011
    1,119

    Prieki bija īsi. Vakar 2 stundas nostrādaja bez gļukiem, bet šodien jauna kaite - ik pa brīdim saņem kaut kādu īsu atbildes signālu.
    Bet uzkāršanās vairs neiek novērota
    dist = 184.84cm 10462ms
    dist = 185.34cm 10490ms
    dist = 185.34cm 10490ms
    dist = 185.37cm 10492ms
    dist = 185.28cm 10487ms
    dist = 185.37cm 10492ms
    dist = 185.76cm 10514ms
    dist = 185.27cm 10486ms
    dist = 0.71cm 40ms
    dist = 185.27cm 10486ms
    dist = 185.80cm 10516ms
    dist = 185.37cm 10492ms
    dist = 185.23cm 10484ms
    dist = 185.74cm 10513ms
    dist = 185.34cm 10490ms
    dist = 0.72cm 41ms
    dist = 185.80cm 10516ms
    dist = 186.11cm 10534ms
    dist = 185.37cm 10492ms
    dist = 185.76cm 10514ms
    dist = 0.72cm 41ms
    dist = 185.76cm 10514ms
    dist = 184.42cm 10438ms
    dist = 185.37cm 10492ms
    dist = 185.37cm 10492ms
    dist = 185.23cm 10484ms
    dist = 0.71cm 40ms
    dist = 185.27cm 10486ms
    dist = 184.54cm 10445ms
    dist = 185.37cm 10492ms
    dist = 185.34cm 10490ms
    dist = 0.71cm 40ms
    shema gan nebūs īsta, jo uzmetot aci savienojumi ir savādāki.
    tad jau drīzāk kaut kas līdzīgs šim, bet arī nav precīza, jo man cita sensora versija
     

  5. #15
    Senior Member
    Mar 2011
    1,119

    Nomainīju pielodēto rezistoru uz 4,3k un atkal viss aizgāja. Toipašu izdarīju arī ar otru nestrādajoso sensoru - viss OK. Īsti nesaprotu ko tas rezistors tur izmaina, bet kaut kas tur nebija īsti ka vajag.
    Nulles ir kad nobloķēju/aizspiežu sensor ar pirkstu
    dist = 185.58cm 10504ms
    dist = 185.21cm 10483ms
    dist = 185.49cm 10499ms
    dist = 185.60cm 10505ms
    dist = 185.21cm 10483ms
    dist = 185.07cm 10475ms
    dist = 185.60cm 10505ms
    dist = 187.92cm 10636ms
    dist = 0.00cm 0ms
    dist = 0.00cm 0ms
    dist = 0.00cm 0ms
    dist = 0.00cm 0ms
    dist = 0.00cm 0ms
    dist = 185.18cm 10481ms
    dist = 185.21cm 10483ms
    dist = 185.49cm 10499ms
    dist = 185.65cm 10508ms
    dist = 185.60cm 10505ms
    dist = 185.48cm 10498ms
    dist = 185.64cm 10507ms
    dist = 185.65cm 10508ms
    dist = 185.65cm 10508ms
    dist = 185.53cm 10501ms
    dist = 185.60cm 10505ms
    dist = 185.27cm 10486ms
    dist = 185.55cm 10502ms
    dist = 185.60cm 10505ms
    dist = 185.65cm 10508ms
    dist = 185.11cm 10477ms
    dist = 185.65cm 10508ms
    dist = 185.64cm 10507ms
    dist = 185.60cm 10505ms

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