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Wbincludes:1-Wire Network/en: различия между версиями
Wbincludes:1-Wire Network/en (просмотреть исходный код)
Версия 20:54, 17 октября 2023
, 7 месяцев назадОбновление для соответствия новой версии исходной страницы.
(Новая страница: «{{Wbincludes:1-Wire Warning}} <h3> Three wire connection</h3> The sensor has three outputs. Their colors may vary from model to model, it is advisable to find the documentation for your model. {| class="wikitable noclear" !Signal||Terminal||Color: Model 1||Color: Model 2||Color: Model 3 |- |Vdd (VCC, Power)||+ 5V Out||Red||Red||Red |- |GND (ground)||GND||Black||Black||Yellow |- |DQ (DATA, data )||1W||Blue||Yellow||Green |}») |
FuzzyBot (обсуждение | вклад) (Обновление для соответствия новой версии исходной страницы.) |
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Typically, up to 20 sensors of 5 meters of cable connected in a star work reliably at home. | Typically, up to 20 sensors of 5 meters of cable connected in a star work reliably at home. | ||
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The main document when designing a bus is [https://www.maximintegrated.com/en/app-notes/index.mvp/id/148 instructions] from the 1-Wire developer. Main points: | The main document when designing a bus is [https://www.maximintegrated.com/en/app-notes/index.mvp/id/148 instructions] from the 1-Wire developer. Main points: | ||
* Bus length when connecting one sensor is up to 200 meters. | * Bus length when connecting one sensor is up to 200 meters. | ||
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* Laying a line with one bus is better than star laying. | * Laying a line with one bus is better than star laying. | ||
* For laying a long bus or in conditions of increased interference (for example, in a shield) - use a twisted pair cable, for example, Cat 5, better shielded. | * For laying a long bus or in conditions of increased interference (for example, in a shield) - use a twisted pair cable, for example, Cat 5, better shielded. | ||
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* Длина шины при подключении одного датчика до 200 метров. | |||
* При подключении нескольких датчиков, подключайте их к питанию 5 В (не используйте двухпроводную схему). | |||
* Прокладка линии одной шиной лучше, чем прокладка звездой. | |||
* Для прокладывания длинной шины или в условиях повышенных помех (например, в щитке) — используйте витую пару, например, Cat 5, лучше экранированную. | |||
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A twisted-pair connection is a signal on one core of the pair, ground on the second, and similarly power supply: plus power on one core of the pair, minus on the second. Connect the power negative to signal ground. Connect the screen on one side to the minus power supply. | A twisted-pair connection is a signal on one core of the pair, ground on the second, and similarly power supply: plus power on one core of the pair, minus on the second. Connect the power negative to signal ground. Connect the screen on one side to the minus power supply. | ||