How to make relay module at home in Hindi | single channel relay module
Автор: Er pankaj
Загружено: 2020-07-02
Просмотров: 1104
In this video i will show you how to make single channel relay module for home automation.
This is a transistor based relay module which activates when positive supply given to it's signal pin.
There is another type of relay module which is activated when negative supply given to it's signal pin. This type of module have opto- coupler which also protect device from AC supply.
Second type module video link:- • Видео
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