{"id":94612,"date":"2022-12-12T13:00:52","date_gmt":"2022-12-12T12:00:52","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/arduino-sterowanie-silnikami-dc\/"},"modified":"2024-11-06T09:56:11","modified_gmt":"2024-11-06T08:56:11","slug":"arduino-rizeni-dc-motoru","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/arduino-rizeni-dc-motoru\/","title":{"rendered":"Arduino – \u0159\u00edzen\u00ed DC motor\u016f"},"content":{"rendered":"\u010cas \u010dten\u00ed:<\/span> 7<\/span> min.<\/span><\/span>\t\t
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Aby se robot mohl pohybovat r\u016fzn\u00fdmi sm\u011bry, mus\u00ed b\u00fdt do jeho konstrukce implementov\u00e1na vhodn\u00e1 \u0159\u00eddic\u00ed technologie.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\u0158\u00edzen\u00ed stejnosm\u011brn\u00fdch motor\u016f pomoc\u00ed Arduino - hardware a software<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Tento \u010dl\u00e1nek p\u0159edstavuje p\u0159\u00edklad implementace \u0159\u00edzen\u00ed stejnosm\u011brn\u00e9ho motoru<\/a> (nap\u0159. pro pohon robota) pomoc\u00ed hardwarov\u00e9ho regul\u00e1toru stejnosm\u011brn\u00e9ho motoru zalo\u017een\u00e9ho na integrovan\u00e9m obvodu L298N a desce Arduino UNO R3. \u010cl\u00e1nek obsahuje zp\u016fsob zapojen\u00ed hardwaru a jeho vlastnosti a pojedn\u00e1v\u00e1 o p\u0159\u00edkladu zdrojov\u00e9ho k\u00f3du implementuj\u00edc\u00edho \u0159\u00edzen\u00ed sm\u011bru a rychlosti stejnosm\u011brn\u00fdch motor\u016f. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\u0158\u00edzen\u00ed ot\u00e1\u010dek stejnosm\u011brn\u00fdch motor\u016f sign\u00e1lem PWM<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Ot\u00e1\u010dky h\u0159\u00eddele stejnosm\u011brn\u00e9ho motoru jsou z\u00e1visl\u00e9 na hodnot\u011b nap\u00e1jec\u00edho nap\u011bt\u00ed. Jedn\u00edm z nejb\u011b\u017en\u011bj\u0161\u00edch zp\u016fsob\u016f \u0159\u00edzen\u00ed ot\u00e1\u010dek je \u0159\u00edzen\u00ed PWM (pulzn\u011b \u0161\u00ed\u0159kov\u00e1 modulace). Tato metoda zahrnuje cyklick\u00e9 zap\u00edn\u00e1n\u00ed a vyp\u00edn\u00e1n\u00ed nap\u00e1jec\u00edho nap\u011bt\u00ed ve velmi kr\u00e1tk\u00fdch \u010dasov\u00fdch intervalech. Jeden cyklus PWM se skl\u00e1d\u00e1 z n\u00e1sleduj\u00edc\u00edch f\u00e1z\u00ed: \n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    \n
  1. zahrnut\u00ed nap\u011bt\u00ed<\/li>\n
  2. podr\u017een\u00ed nap\u011bt\u00ed<\/li>\n
  3. odpojen\u00ed od nap\u00e1jen\u00ed<\/li>\n
  4. podpora vypnut\u00e9ho nap\u011bt\u00ed<\/li>\n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    Pr\u016fm\u011brn\u00e1 hodnota nap\u00e1jec\u00edho nap\u011bt\u00ed dod\u00e1van\u00e9ho do motoru se vypo\u010d\u00edt\u00e1 z faktoru pln\u011bn\u00ed PW (\u0161\u00ed\u0159ka pulzu). Tento parametr ur\u010duje, po jakou dobu trv\u00e1n\u00ed jednoho cyklu PWM je nap\u00e1jec\u00ed nap\u011bt\u00ed (v tomto p\u0159\u00edpad\u011b dod\u00e1van\u00e9 do motoru) zapnut\u00e9. Na z\u00e1klad\u011b faktoru pln\u011bn\u00ed a maxim\u00e1ln\u00ed hodnoty nap\u00e1jec\u00edho nap\u011bt\u00ed m\u016f\u017eeme vypo\u010d\u00edtat pr\u016fm\u011brnou hodnotu nap\u00e1jec\u00edho nap\u011bt\u00ed v pr\u016fb\u011bhu alespo\u0148 jednoho cyklu PWM, jak je zn\u00e1zorn\u011bno na oscilogramech na obr\u00e1zku 1: <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Obr. 1 – Vliv regulace \u010dinitele pln\u011bn\u00ed na st\u0159edn\u00ed hodnotu pr\u016fb\u011bhu nap\u00e1jec\u00edho nap\u011bt\u00ed<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Z v\u00fd\u0161e uveden\u00fdch oscilogram\u016f je patrn\u00e9, \u017ee \u010d\u00edm vy\u0161\u0161\u00ed je hodnota \u010dinitele pln\u011bn\u00ed, t\u00edm vy\u0161\u0161\u00ed je pr\u016fm\u011brn\u00e1 hodnota nap\u00e1jec\u00edho nap\u011bt\u00ed. Praktick\u00fd d\u016fsledek v na\u0161ich \u00favah\u00e1ch bude ten, \u017ee \u010d\u00edm vy\u0161\u0161\u00ed bude hodnota \u010dinitele pln\u011bn\u00ed, t\u00edm vy\u0161\u0161\u00ed budou ot\u00e1\u010dky motoru a pokles t\u00e9to hodnoty zp\u016fsob\u00ed odpov\u00eddaj\u00edc\u00ed zpomalen\u00ed h\u0159\u00eddele motoru. \n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Sm\u011brov\u00e9 \u0159\u00edzen\u00ed stejnosm\u011brn\u00fdch motor\u016f pomoc\u00ed m\u016fstku \"H\"<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    U stejnosm\u011brn\u00fdch motor\u016f se zm\u011bna sm\u011bru ot\u00e1\u010den\u00ed obvykle prov\u00e1d\u00ed zm\u011bnou polarity nap\u00e1jec\u00edho nap\u011bt\u00ed. Jedn\u00edm z nejb\u011b\u017en\u011bj\u0161\u00edch technick\u00fdch \u0159e\u0161en\u00ed v tomto ohledu je p\u0159ipojen\u00ed motoru ke zdroji nap\u00e1jec\u00edho nap\u011bt\u00ed pomoc\u00ed “H” m\u016fstku, jak je zn\u00e1zorn\u011bno na obr\u00e1zku 2: \n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Obr. 2 – stejnosm\u011brn\u00fd motor p\u0159ipojen\u00fd ke zdroji nap\u00e1jec\u00edho nap\u011bt\u00ed p\u0159es m\u016fstek typu “H”.\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    M\u016fstek “H” je tvo\u0159en \u010dty\u0159mi sp\u00edna\u010di (S1, S2, S3, S4), kter\u00e9 jsou na sch\u00e9matu uspo\u0159\u00e1d\u00e1ny spole\u010dn\u011b s motorem M do tvaru p\u0159ipom\u00ednaj\u00edc\u00edho p\u00edsmeno “H”. V praxi jsou sp\u00edna\u010di tranzistorov\u00e9 kl\u00ed\u010de, obvykle BJT nebo MOSFET, na kter\u00e9 lze p\u0159iv\u00e9st \u0159\u00eddic\u00ed sign\u00e1l, nap\u0159\u00edklad z v\u00fdstup\u016f mikrokontrol\u00e9ru. Uzav\u0159en\u00edm sp\u00edna\u010d\u016f S1 a S4 a ponech\u00e1n\u00edm sp\u00edna\u010d\u016f S2 a S3 otev\u0159en\u00fdch se na svorky motoru p\u0159ivede nap\u011bt\u00ed, kter\u00e9 uvede motor do pravoto\u010div\u00e9ho chodu, tj. kladn\u00fd p\u00f3l zdroje nap\u011bt\u00ed na kladn\u00fd p\u00f3l motoru a z\u00e1porn\u00fd p\u00f3l zdroje na z\u00e1porn\u00fd p\u00f3l motoru. Zm\u011bn\u00edme-li nyn\u00ed stavy v\u0161ech sp\u00edna\u010d\u016f, dojde v d\u016fsledku p\u0159ep\u00f3lov\u00e1n\u00ed nap\u00e1jec\u00edho nap\u011bt\u00ed tak\u00e9 k ot\u00e1\u010div\u00e9mu pohybu h\u0159\u00eddele motoru v opa\u010dn\u00e9m sm\u011bru. \n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    \u0158\u00eddic\u00ed modul stejnosm\u011brn\u00e9ho motoru zalo\u017een\u00fd na \u010dipu L298N<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    Modul ovlada\u010de stejnosm\u011brn\u00e9ho motoru, kter\u00fd pou\u017eijeme v na\u0161em projektu, je zalo\u017een na integrovan\u00e9m obvodu L298N<\/a>, kter\u00fd obsahuje H-m\u016fstek. Aby byl regul\u00e1tor chr\u00e1n\u011bn p\u0159ed p\u0159eh\u0159\u00e1t\u00edm, byl k pouzdru \u010dipu p\u0159i\u0161roubov\u00e1n velk\u00fd chladi\u010d, kter\u00fd zv\u011bt\u0161uje plochu pro odvod tepla z integrovan\u00e9ho obvodu L298N. \u0158\u00eddic\u00ed jednotka m\u016f\u017ee ovl\u00e1dat maxim\u00e1ln\u011b dva motory sou\u010dasn\u011b. Nap\u00e1jen\u00ed regul\u00e1toru je zaji\u0161t\u011bno prost\u0159ednictv\u00edm t\u0159\u00edpinov\u00e9ho \u0161roubovac\u00edho konektoru typu ARK, kter\u00fd obsahuje v\u00fdvody pro nap\u00e1jen\u00ed motoru (VS), zem (GND) a nap\u00e1jen\u00ed logick\u00e9 \u010d\u00e1sti (VSS). Rozsah p\u0159\u00edpustn\u00fdch nap\u00e1jec\u00edch nap\u011bt\u00ed p\u0159iveden\u00fdch na pin VS je a\u017e 12 V. Naproti tomu p\u0159\u00edpustn\u00fd rozsah nap\u011bt\u00ed pro nap\u00e1jen\u00ed logick\u00e9 \u010d\u00e1sti na kol\u00edku VSS je 5 a\u017e 7 V. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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    \u0158\u00eddic\u00ed jednotka motoru L298N.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    Modul m\u00e1 vestav\u011bn\u00fd 5V line\u00e1rn\u00ed stabiliz\u00e1tor nap\u011bt\u00ed, kter\u00fd lze vypnout a obej\u00edt p\u0159esunut\u00edm jumperu – p\u0159ilo\u017een\u00edm jumperu na piny se stabiliz\u00e1tor zapne – nap\u00e1jen\u00ed jeho vstupu je p\u0159iv\u00e1d\u011bno p\u0159\u00edmo z pinu VS. Maxim\u00e1ln\u00ed proudov\u00e1 kapacita vestav\u011bn\u00e9ho stabiliz\u00e1toru nap\u011bt\u00ed 5V je 0,5 A, co\u017e umo\u017e\u0148uje nap\u00e1jen\u00ed Arduino<\/a> nebo jin\u00fdch extern\u00edch modul\u016f. Po odstran\u011bn\u00ed propojky v\u0161ak bude nutn\u00e9 nap\u011bt\u00ed pro logickou \u010d\u00e1st dod\u00e1vat extern\u011b, p\u0159\u00edmo na pin VSS. Upozor\u0148ujeme, \u017ee v t\u00e9to situaci je zak\u00e1z\u00e1no propojku vkl\u00e1dat, proto\u017ee m\u016f\u017ee doj\u00edt k po\u0161kozen\u00ed stabiliz\u00e1toru nap\u011bt\u00ed nebo dokonce cel\u00e9ho regul\u00e1toru! Podle technick\u00fdch \u00fadaj\u016f je \u00fabytek nap\u011bt\u00ed na ovlada\u010di motoru L298N p\u0159ibli\u017en\u011b 2 V. Je to zp\u016fsobeno vnit\u0159n\u00edm \u00fabytkem nap\u011bt\u00ed na p\u0159echodech sp\u00ednac\u00edch tranzistor\u016f, kter\u00e9 tvo\u0159\u00ed “H” m\u016fstek. P\u0159ipoj\u00edme-li tedy na nap\u00e1jec\u00ed svorky motoru 12V, budou motory dost\u00e1vat maxim\u00e1ln\u00ed nap\u011bt\u00ed kolem 10V. To znamen\u00e1, \u017ee pokud k regul\u00e1toru p\u0159ipoj\u00edme motor se jmenovit\u00fdm nap\u011bt\u00edm 12V, nikdy se nebude ot\u00e1\u010det maxim\u00e1ln\u00edmi ot\u00e1\u010dkami deklarovan\u00fdmi v\u00fdrobcem. Aby bylo dosa\u017eeno maxim\u00e1ln\u00edch ot\u00e1\u010dek, m\u011blo by b\u00fdt nap\u00e1jec\u00ed nap\u011bt\u00ed motoru o n\u011bco vy\u0161\u0161\u00ed ne\u017e skute\u010dn\u00e9 nap\u011bt\u00ed, kter\u00e9 motor vy\u017eaduje k dosa\u017een\u00ed maxim\u00e1ln\u00edch ot\u00e1\u010dek. V jin\u00e9m p\u0159\u00edkladu, p\u0159i \u00fabytku nap\u011bt\u00ed 2V, pokud pou\u017e\u00edv\u00e1me motory vy\u017eaduj\u00edc\u00ed k dosa\u017een\u00ed pln\u00fdch ot\u00e1\u010dek jmenovit\u00e9 nap\u011bt\u00ed 5V, mus\u00edme mu na v\u00fdstupn\u00edch svork\u00e1ch regul\u00e1toru dodat nap\u00e1jec\u00ed nap\u011bt\u00ed 7V a pro motor s nap\u011bt\u00edm 12V by nap\u00e1jec\u00ed nap\u011bt\u00ed motoru bylo 14V. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Modul ovlada\u010de stejnosm\u011brn\u00e9ho motoru, kter\u00fd pou\u017eijeme v na\u0161em projektu, je zalo\u017een na integrovan\u00e9m obvodu L298N, kter\u00fd obsahuje H-m\u016fstek. Aby byl regul\u00e1tor chr\u00e1n\u011bn p\u0159ed p\u0159eh\u0159\u00e1t\u00edm, byl k pouzdru \u010dipu p\u0159i\u0161roubov\u00e1n velk\u00fd chladi\u010d, kter\u00fd zv\u011bt\u0161uje plochu pro odvod tepla z integrovan\u00e9ho obvodu L298N. \u0158\u00eddic\u00ed jednotka m\u016f\u017ee ovl\u00e1dat maxim\u00e1ln\u011b dva motory sou\u010dasn\u011b. Nap\u00e1jen\u00ed regul\u00e1toru je zaji\u0161t\u011bno prost\u0159ednictv\u00edm t\u0159\u00edpinov\u00e9ho \u0161roubovac\u00edho konektoru typu ARK, kter\u00fd obsahuje v\u00fdvody pro nap\u00e1jen\u00ed motoru (VS), zem (GND) a nap\u00e1jen\u00ed logick\u00e9 \u010d\u00e1sti (VSS). Rozsah p\u0159\u00edpustn\u00fdch nap\u00e1jec\u00edch nap\u011bt\u00ed p\u0159iveden\u00fdch na kol\u00edk VS je 5 a\u017e 35 V. Rozsah p\u0159\u00edpustn\u00e9ho nap\u00e1jec\u00edho nap\u011bt\u00ed logick\u00e9 \u010d\u00e1sti p\u0159iv\u00e1d\u011bn\u00e9ho na kol\u00edk VSS je 5 a\u017e 7 V. Modul m\u00e1 vestav\u011bn\u00fd line\u00e1rn\u00ed stabiliz\u00e1tor nap\u011bt\u00ed 5V, kter\u00fd lze vypnout a obej\u00edt p\u0159esunut\u00edm propojky – p\u0159ilo\u017een\u00edm propojky na v\u00fdvody se stabiliz\u00e1tor zapne – nap\u00e1jen\u00ed jeho vstupu je p\u0159iv\u00e1d\u011bno p\u0159\u00edmo z v\u00fdvodu VS. Maxim\u00e1ln\u00ed proudov\u00e1 kapacita vestav\u011bn\u00e9ho stabiliz\u00e1toru nap\u011bt\u00ed 5V je 0,5 A, co\u017e umo\u017e\u0148uje nap\u00e1jen\u00ed Arduina nebo jin\u00fdch extern\u00edch modul\u016f. Po odstran\u011bn\u00ed propojky v\u0161ak bude nutn\u00e9 nap\u011bt\u00ed pro logickou \u010d\u00e1st dod\u00e1vat extern\u011b, p\u0159\u00edmo na pin VSS. Upozor\u0148ujeme, \u017ee v t\u00e9to situaci je zak\u00e1z\u00e1no propojku vkl\u00e1dat, proto\u017ee by mohlo doj\u00edt k po\u0161kozen\u00ed stabiliz\u00e1toru nap\u011bt\u00ed nebo dokonce cel\u00e9ho regul\u00e1toru! Podle technick\u00fdch \u00fadaj\u016f je \u00fabytek nap\u011bt\u00ed na ovlada\u010di motoru L298N p\u0159ibli\u017en\u011b 2 V. Je to zp\u016fsobeno vnit\u0159n\u00edm \u00fabytkem nap\u011bt\u00ed na p\u0159echodech sp\u00ednac\u00edch tranzistor\u016f, kter\u00e9 tvo\u0159\u00ed “H” m\u016fstek. P\u0159ipoj\u00edme-li tedy na nap\u00e1jec\u00ed svorky motor\u016f 12V, budou motory dost\u00e1vat nap\u011bt\u00ed maxim\u00e1ln\u011b kolem 10V. To znamen\u00e1, \u017ee pokud k regul\u00e1toru p\u0159ipoj\u00edme motor se jmenovit\u00fdm nap\u011bt\u00edm 12V, nikdy se nebude ot\u00e1\u010det maxim\u00e1ln\u00edmi ot\u00e1\u010dkami deklarovan\u00fdmi v\u00fdrobcem. Aby bylo dosa\u017eeno maxim\u00e1ln\u00edch ot\u00e1\u010dek, m\u011blo by b\u00fdt nap\u00e1jec\u00ed nap\u011bt\u00ed motoru o n\u011bco vy\u0161\u0161\u00ed ne\u017e skute\u010dn\u00e9 nap\u011bt\u00ed, kter\u00e9 motor vy\u017eaduje k dosa\u017een\u00ed maxim\u00e1ln\u00edch ot\u00e1\u010dek. V jin\u00e9m p\u0159\u00edkladu, p\u0159i \u00fabytku nap\u011bt\u00ed 2V, pokud pou\u017e\u00edv\u00e1me motory vy\u017eaduj\u00edc\u00ed k dosa\u017een\u00ed pln\u00fdch ot\u00e1\u010dek jmenovit\u00e9 nap\u011bt\u00ed 5V, mus\u00edme mu na v\u00fdstupn\u00edch svork\u00e1ch regul\u00e1toru dodat nap\u00e1jec\u00ed nap\u011bt\u00ed 7V a pro motor s nap\u011bt\u00edm 12V by nap\u00e1jec\u00ed nap\u011bt\u00ed motoru bylo 14V. \n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Vn\u011bj\u0161\u00ed svorky \u0159\u00eddic\u00ed jednotky L298N<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    V\u00fdstupy nap\u00e1jen\u00ed motoru na \u0159\u00eddic\u00ed jednotce L298N pro motor A a motor B jsou vedeny na okraj modulu pomoc\u00ed dvou \u0161roubov\u00fdch svorek s m\u0159\u00ed\u017ekou 3,5 mm. K t\u011bmto svork\u00e1m lze p\u0159ipojit dva stejnosm\u011brn\u00e9 motory s nap\u011bt\u00edm od 5 do 35 V. Ka\u017ed\u00fd kan\u00e1l na modulu m\u016f\u017ee stejnosm\u011brn\u00fd motor nap\u00e1jet proudem a\u017e 2 A. Velikost proudu dod\u00e1van\u00e9ho do motoru v\u0161ak z\u00e1vis\u00ed na nap\u00e1jec\u00edm nap\u011bt\u00ed \u0159\u00eddic\u00ed jednotky. Pro ka\u017ed\u00fd v\u00fdstupn\u00ed kan\u00e1l regul\u00e1toru L298N jsou k dispozici dva typy \u0159\u00eddic\u00edch v\u00fdvod\u016f, kter\u00e9 n\u00e1m umo\u017e\u0148uj\u00ed \u0159\u00eddit rychlost a sm\u011br stejnosm\u011brn\u00fdch motor\u016f sou\u010dasn\u011b, tj. v\u00fdvody pro \u0159\u00edzen\u00ed sm\u011bru a v\u00fdvody pro \u0159\u00edzen\u00ed rychlosti. Pomoc\u00ed v\u00fdvod\u016f pro \u0159\u00edzen\u00ed sm\u011bru m\u016f\u017eeme \u0159\u00eddit, zda se m\u00e1 motor ot\u00e1\u010det ve sm\u011bru nebo proti sm\u011bru hodinov\u00fdch ru\u010di\u010dek. Tyto v\u00fdvody ve skute\u010dnosti ovl\u00e1daj\u00ed tranzistory v m\u016fstkov\u00e9m obvodu typu ,,H”, kter\u00fd se nach\u00e1z\u00ed uvnit\u0159 integrovan\u00e9ho obvodu L298N. Modul m\u00e1 pro ka\u017ed\u00fd kan\u00e1l dva v\u00fdvody pro \u0159\u00edzen\u00ed sm\u011bru. Piny IN1 a IN2 ovl\u00e1daj\u00ed sm\u011br ot\u00e1\u010den\u00ed motoru A, zat\u00edmco piny IN3 a IN4 ovl\u00e1daj\u00ed sm\u011br ot\u00e1\u010den\u00ed motoru B. Sm\u011br ot\u00e1\u010den\u00ed motoru lze ovl\u00e1dat p\u0159iveden\u00edm logick\u00e9ho vysok\u00e9ho (+5 V) nebo logick\u00e9ho n\u00edzk\u00e9ho (GND) stavu na tyto vstupy, jak je pops\u00e1no n\u00ed\u017ee. \n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    IN1<\/p>\n<\/td>\n

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    Sm\u011br ot\u00e1\u010den\u00ed<\/p>\n<\/td>\n<\/tr>\n

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    GND<\/p>\n<\/td>\n

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    vypnut\u00ed motoru<\/p>\n<\/td>\n<\/tr>\n

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    kompatibiln\u00ed s hodinami<\/p>\n<\/td>\n<\/tr>\n

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    proti sm\u011bru hodinov\u00fdch ru\u010di\u010dek<\/p>\n<\/td>\n<\/tr>\n

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    vypnut\u00ed motoru<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Na desce jsou tak\u00e9 v\u00fdvody ENA a ENB, kter\u00e9 slou\u017e\u00ed k zap\u00edn\u00e1n\u00ed a vyp\u00edn\u00e1n\u00ed motor\u016f a k \u0159\u00edzen\u00ed jejich rychlosti. P\u0159epnut\u00edm t\u011bchto pin\u016f do vysok\u00e9ho stavu se motory rozto\u010d\u00ed, zat\u00edmco jejich p\u0159epnut\u00edm do n\u00edzk\u00e9ho stavu se motory zastav\u00ed. Pomoc\u00ed pulzn\u011b \u0161\u00ed\u0159kov\u00e9 modulace (PWM) m\u016f\u017eeme skute\u010dn\u011b \u0159\u00eddit rychlost motor\u016f. Modul se obvykle dod\u00e1v\u00e1 s propojkou na t\u011bchto pinech. Kdy\u017e je tato propojka na m\u00edst\u011b, motor je zapnut\u00fd a ot\u00e1\u010d\u00ed se maxim\u00e1ln\u00ed rychlost\u00ed. Pokud chceme \u0159\u00eddit ot\u00e1\u010dky motor\u016f programov\u011b, mus\u00edme propojky odstranit a p\u0159ipojit je k pin\u016fm se zapnut\u00fdm generov\u00e1n\u00edm PWM na Arduinu. Nap\u00e1jen\u00ed motoru zaji\u0161\u0165uje pin VCC. To se m\u016f\u017ee pohybovat v rozmez\u00ed 5 a\u017e 35 V. Pokud je na m\u00edst\u011b propojka 5V-EN, dod\u00e1vejte nap\u011bt\u00ed o 2V vy\u0161\u0161\u00ed, ne\u017e je skute\u010dn\u00fd po\u017eadavek na jmenovit\u00e9 nap\u011bt\u00ed motoru pro dosa\u017een\u00ed maxim\u00e1ln\u00ed rychlosti motoru. GND je spole\u010dn\u00fd zemnic\u00ed kol\u00edk. V\u00fdvod 5V poskytuje nap\u00e1jen\u00ed pro sp\u00ednac\u00ed logick\u00e9 obvody uvnit\u0159 integrovan\u00e9ho obvodu L298N. Pokud je na m\u00edst\u011b propojka 5V-EN, funguje tento pin jako v\u00fdstup a lze jej pou\u017e\u00edt k nap\u00e1jen\u00ed Arduina. Pokud je propojka 5V-EN odstran\u011bna, mus\u00ed b\u00fdt p\u0159ipojen k pinu 5V na Arduinu. V\u00fdvod ENA slou\u017e\u00ed k ovl\u00e1d\u00e1n\u00ed rychlosti motoru A. Nastaven\u00edm tohoto v\u00fdvodu na vysokou hodnotu (p\u0159i zachov\u00e1n\u00ed jumperu na m\u00edst\u011b) se motor A rozto\u010d\u00ed a nastaven\u00edm stejn\u00e9ho v\u00fdvodu na n\u00edzkou hodnotu se motor zastav\u00ed. Odstran\u011bn\u00ed propojky a p\u0159ipojen\u00ed tohoto pinu ke vstupu PWM n\u00e1m umo\u017en\u00ed \u0159\u00eddit rychlost motoru A. Piny IN1 a IN2 se pou\u017e\u00edvaj\u00ed k \u0159\u00edzen\u00ed sm\u011bru ot\u00e1\u010den\u00ed motoru A. Kdy\u017e je jeden z nich ve vysok\u00e9m stavu a druh\u00fd v n\u00edzk\u00e9m, motor A se za\u010dne ot\u00e1\u010det. Pokud jsou oba vstupy ve vysok\u00e9m nebo n\u00edzk\u00e9m stavu, motor A se zastav\u00ed. Piny IN3 a IN4 se pou\u017e\u00edvaj\u00ed k \u0159\u00edzen\u00ed sm\u011bru ot\u00e1\u010den\u00ed motoru B. Pokud je jeden z nich ve vysok\u00e9m stavu a druh\u00fd v n\u00edzk\u00e9m stavu, motor B se bude ot\u00e1\u010det. Pokud jsou oba vstupy ve vysok\u00e9m nebo n\u00edzk\u00e9m stavu, motor B se zastav\u00ed. V\u00fdvod ENB se pou\u017e\u00edv\u00e1 k \u0159\u00edzen\u00ed ot\u00e1\u010dek motoru B. P\u0159esunut\u00edm tohoto kol\u00edku do vysok\u00e9ho stavu (p\u0159i zachov\u00e1n\u00ed jumperu na m\u00edst\u011b) se motor B rozto\u010d\u00ed, zat\u00edmco p\u0159esunut\u00edm tohoto kol\u00edku do n\u00edzk\u00e9ho stavu se motor zastav\u00ed. Odstran\u011bn\u00edm propojky a p\u0159ipojen\u00edm tohoto pinu k v\u00fdstupu PWM budeme moci \u0159\u00eddit rychlost motoru B. V\u00fdvody OUT1 a OUT2 jsou p\u0159ipojeny k motoru A, zat\u00edmco v\u00fdvody OUT3 a OUT4 jsou p\u0159ipojeny k motoru B. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    P\u0159ipojen\u00ed \u0159\u00eddic\u00ed jednotky L298N k Arduino UNO R3<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    Modul Arduino UNO R3.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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    Nyn\u00ed, kdy\u017e v\u00edme v\u0161e o \u0159\u00eddic\u00edm modulu L298N, m\u016f\u017eeme za\u010d\u00edt s jeho p\u0159ipojov\u00e1n\u00edm k Arduinu! Za\u010dneme p\u0159ipojen\u00edm nap\u00e1jen\u00ed k motor\u016fm. V na\u0161em projektu pou\u017eijeme stejnosm\u011brn\u00e9 motory s reduk\u010dn\u00edm p\u0159evodem, kter\u00e9 se obvykle pou\u017e\u00edvaj\u00ed v robotech s pohonem dvou kol. Rozsah jejich pracovn\u00edho nap\u011bt\u00ed je od 3 V do 12 V. P\u0159ipoj\u00edme tedy extern\u00ed zdroj 12V ke svorce VCC. S ohledem na vnit\u0159n\u00ed \u00fabytek nap\u011bt\u00ed na m\u016fstkov\u00fdch tranzistorech ,,H” v obvodu L298N budou motory dost\u00e1vat 10 V a budou se ot\u00e1\u010det o n\u011bco ni\u017e\u0161\u00edmi ot\u00e1\u010dkami.Ale to nevad\u00ed.  D\u00e1le mus\u00edme nap\u00e1jet 5V pro logickou \u010d\u00e1st ovlada\u010de L298N.  <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    Pou\u017eijeme vestav\u011bn\u00fd 5V regul\u00e1tor a budeme odeb\u00edrat 5V z nap\u00e1jen\u00ed motoru, tak\u017ee propojka 5 V-EN z\u016fstane na sv\u00e9m m\u00edst\u011b. Nyn\u00ed jsou vstupn\u00ed a povolovac\u00ed piny (ENA, IN1, IN2, IN3, IN4 a ENB) modulu L298N p\u0159ipojeny k \u0161esti digit\u00e1ln\u00edm v\u00fdstupn\u00edm pin\u016fm Arduina (9, 8, 7, 5, 4 a 3). V\u0161imn\u011bte si, \u017ee oba v\u00fdstupn\u00ed piny Arduina, tj. \u010d. 9 a \u010d. 3, podporuj\u00ed PWM. Nakonec p\u0159ipoj\u00edme jeden motor ke svorce A (OUT1 a OUT2) a druh\u00fd motor ke svorce B (OUT3 a OUT4). P\u0159ipojen\u00ed motor\u016f m\u016f\u017eeme prohodit, technicky neexistuje \u017e\u00e1dn\u00fd spr\u00e1vn\u00fd nebo \u0161patn\u00fd zp\u016fsob. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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    K\u00f3d programu\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    N\u00e1sleduj\u00edc\u00ed n\u00e1\u010drt k\u00f3du poskytuje p\u0159edstavu o \u0159\u00edzen\u00ed rychlosti a sm\u011bru stejnosm\u011brn\u00e9ho motoru pomoc\u00ed \u0159\u00eddic\u00ed jednotky L298N a m\u016f\u017ee slou\u017eit jako z\u00e1klad pro dal\u0161\u00ed praktick\u00e9 experimenty a projekty:<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

    \n\t\t\t\t\t\t
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    \n\t\t\t\t\n\t\t\t\t\t\/\/ Podlaczanie silnika A ze sterownikiem L298N\r\n\r\nint enA = 9;\r\n\r\nint in1 = 8;\r\n\r\nint in2 = 7;\r\n\r\n\/\/ Podlaczanie silnika B ze sterownikiem L298N\r\n\r\nint enB = 3;\r\n\r\nint in3 = 5;\r\n\r\nint in4 = 4;\r\n\r\n\r\n\r\nvoid setup() {\r\n\r\n  \/\/ Piny sterowania silnikiem ustawione jako wejscia\r\n\r\n  pinMode(enA, OUTPUT);\r\n\r\n  pinMode(enB, OUTPUT);\r\n\r\n  pinMode(in1, OUTPUT);\r\n\r\n  pinMode(in2, OUTPUT);\r\n\r\n  pinMode(in3, OUTPUT);\r\n\r\n  pinMode(in4, OUTPUT);\r\n\r\n  \/\/ Stan poczatkowy - wylaczenie silnikow\r\n\r\n  digitalWrite(in1, LOW);\r\n\r\n  digitalWrite(in2, LOW);\r\n\r\n  digitalWrite(in3, LOW);\r\n\r\n  digitalWrite(in4, LOW);\r\n\r\n}\r\n\r\n\r\n\r\nvoid loop() {\r\n\r\n  directionControl();\r\n\r\n  delay(1000);\r\n\r\n  speedControl();\r\n\r\n  delay(1000);\r\n\r\n}\r\n\r\n\r\n\r\n\/\/ Sterowanie kierunkiem obrotow silnikow\r\n\r\nvoid directionControl() {\r\n\r\n  \/\/ Ustawienie maksymalnej predkosci obrotowej\r\n\r\n  \/\/ Zakres predkosci dla PWM od 0 do 255\r\n\r\n  analogWrite(enA, 255);\r\n\r\n  analogWrite(enB, 255);\r\n\r\n\r\n\r\n  \/\/ Wlaczenie silnikow A i B\r\n\r\n  digitalWrite(in1, HIGH);\r\n\r\n  digitalWrite(in2, LOW);\r\n\r\n  digitalWrite(in3, HIGH);\r\n\r\n  digitalWrite(in4, LOW);\r\n\r\n  delay(2000);\r\n\r\n  \/\/ Zmiana kierunku wirowania\r\n\r\n  digitalWrite(in1, LOW);\r\n\r\n  digitalWrite(in2, HIGH);\r\n\r\n  digitalWrite(in3, LOW);\r\n\r\n  digitalWrite(in4, HIGH);\r\n\r\n  delay(2000);\r\n\r\n  \/\/ Wylaczenie silnikow\r\n\r\n  digitalWrite(in1, LOW);\r\n\r\n  digitalWrite(in2, LOW);\r\n\r\n  digitalWrite(in3, LOW);\r\n\r\n  digitalWrite(in4, LOW);\r\n\r\n}\r\n\r\n\r\n\r\n\/\/ Funkcja pozwalajaca na regulacje predkosci obrotowej\r\n\r\nvoid speedControl() {\r\n\r\n  \/\/ Wlaczenie silnikow\r\n\r\n  digitalWrite(in1, LOW);\r\n\r\n  digitalWrite(in2, HIGH);\r\n\r\n  digitalWrite(in3, LOW);\r\n\r\n  digitalWrite(in4, HIGH);\r\n\r\n  \/\/ Rozpedzanie silnikow\r\n\r\n  for (int i = 0; i < 256; i++) {\r\n\r\n    analogWrite(enA, i);\r\n\r\n    analogWrite(enB, i);\r\n\r\n    delay(20);\r\n\r\n  }\r\n\r\n  \/\/ Hamowanie silnikow\r\n\r\n  for (int i = 255; i >= 0; --i) {\r\n\r\n    analogWrite(enA, i);\r\n\r\n    analogWrite(enB, i);\r\n\r\n    delay(20);\r\n\r\n  }\r\n\r\n  \/\/ Wylaczenie silnikow\r\n\r\n  digitalWrite(in1, LOW);\r\n\r\n  digitalWrite(in2, LOW);\r\n\r\n  digitalWrite(in3, LOW);\r\n\r\n  digitalWrite(in4, LOW);\r\n\r\n}<\/xmp>\n\t\t\t\t<\/code>\n\t\t\t<\/pre>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4bffc18 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4bffc18\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-04ead3a\" data-id=\"04ead3a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-254e92e elementor-widget elementor-widget-text-editor\" data-id=\"254e92e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>V\u00fd\u0161e uveden\u00fd k\u00f3d pou\u017e\u00edv\u00e1 dv\u011b speci\u00e1ln\u00ed funkce, a to:<\/p>\n<p><span style=\"font-weight: bolder;\">directionControl()<\/span> &#8211; Tato funkce zp\u016fsob\u00ed, \u017ee se oba motory budou po dobu dvou sekund ot\u00e1\u010det dop\u0159edu maxim\u00e1ln\u00ed rychlost\u00ed. Pot\u00e9 zm\u011bn\u00ed sm\u011br motor\u016f a zp\u016fsob\u00ed, \u017ee se budou ot\u00e1\u010det dal\u0161\u00ed dv\u011b sekundy. Nakonec motory vypne.   <\/p>\n<p><span style=\"font-weight: bolder;\">speedControl()<\/span> &#8211; Tato funkce zrychluje oba motory z nulov\u00fdch na maxim\u00e1ln\u00ed ot\u00e1\u010dky a vytv\u00e1\u0159\u00ed sign\u00e1ly PWM pomoc\u00ed funkce analogWrite() a pot\u00e9 motory zpomaluje zp\u011bt na nulu. Nakonec motory vypne.  <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Niniejszy artyku\u0142 przedstawia przyk\u0142adow\u0105 realizacj\u0119 sterowania silnikami pr\u0105du sta\u0142ego (np. do nap\u0119du robota), z wykorzystaniem sprz\u0119towego sterownika silnik\u00f3w pr\u0105du sta\u0142ego opartego na uk\u0142adzie scalonym L298N i p\u0142ytki Arduino UNO R3.<\/p>\n","protected":false},"author":21,"featured_media":63147,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[555],"tags":[],"class_list":["post-94612","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arduino-cs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Arduino - \u0159\u00edzen\u00ed DC motor\u016f - Botland<\/title>\n<meta name=\"description\" content=\"Pomoc\u00ed Arduino a specializovan\u00e9ho modulu zalo\u017een\u00e9ho na \u010dipu L298N m\u016f\u017eeme \u0159\u00eddit chod stejnosm\u011brn\u00fdch motor\u016f - podrobnosti najdete v \u010dl\u00e1nku na blogu Botland!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.cz\/blog\/arduino-rizeni-dc-motoru\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Arduino - \u0159\u00edzen\u00ed DC motor\u016f - Botland\" \/>\n<meta property=\"og:description\" content=\"Pomoc\u00ed Arduino a specializovan\u00e9ho modulu zalo\u017een\u00e9ho na \u010dipu L298N m\u016f\u017eeme \u0159\u00eddit chod stejnosm\u011brn\u00fdch motor\u016f - podrobnosti najdete v \u010dl\u00e1nku na blogu Botland!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/botland.cz\/blog\/arduino-rizeni-dc-motoru\/\" \/>\n<meta property=\"og:site_name\" content=\"Botland\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/Botland\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-12T12:00:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-11-06T08:56:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/05\/new2023-2022-12-06-okladka-arduino-silnik1510x1510.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1510\" \/>\n\t<meta property=\"og:image:height\" content=\"755\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Mateusz Mr\u00f3z\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mateusz Mr\u00f3z\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"14 minut\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/arduino-rizeni-dc-motoru\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/arduino-rizeni-dc-motoru\\\/\"},\"author\":{\"name\":\"Mateusz Mr\u00f3z\",\"@id\":\"https:\\\/\\\/botland.de\\\/blog\\\/#\\\/schema\\\/person\\\/774dbd37e308d5fb229ec7f3b8898559\"},\"headline\":\"Arduino &#8211; 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