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Управление низковольтной нагрузкой/en: различия между версиями
Управление низковольтной нагрузкой/en (просмотреть исходный код)
Версия 17:37, 16 мая 2019
, 4 года назадНовая страница: «'''Note for Wiren Board versions 2.8 and 3.5:''' * when connecting inductive loads (relay) do not forget to put a protective diode - a surge of voltage from the r…»
(Новая страница: «thumb|400px|Equivalent Ax output circuit for WB4 controller To reduce the total number of terminals, the low-voltage load control channels are com…») |
(Новая страница: «'''Note for Wiren Board versions 2.8 and 3.5:''' * when connecting inductive loads (relay) do not forget to put a protective diode - a surge of voltage from the r…») |
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To reduce the total number of terminals, the low-voltage load control channels are combined with ADC channels - see[[Мультиплексирование портов/en |Multiplexing ports]]. Therefore, the outputs have a large, but the final resistance (30-100k). This can cause, for example, a weak glow of led strips ''(The solution is: add a resistor to the power supply)''. | To reduce the total number of terminals, the low-voltage load control channels are combined with ADC channels - see[[Мультиплексирование портов/en |Multiplexing ports]]. Therefore, the outputs have a large, but the final resistance (30-100k). This can cause, for example, a weak glow of led strips ''(The solution is: add a resistor to the power supply)''. | ||
''' | '''Note for Wiren Board versions 2.8 and 3.5:''' | ||
* | * when connecting inductive loads (relay) do not forget to put a protective diode - a surge of voltage from the relay coil can damage the controller. Maximum current per channel - 3A, voltage up to 24V. | ||
''' | '''Note for Wiren Board version 4:''' | ||
A protective diode is built-in in Wiren Board 4 controller and the maximum voltage must not exceed the controller supply voltage (Vin). The maximum current is also 3 A. If multiple channels are used and '''the total current is greater than 5 A, connect multiple GND terminals to the "minus" of the power supply.''' | |||