DIY: How to make an indicating circuit using LED
Have you ever wondered how to make an indicating circuit using LED? In this video, a filmer shows how by using a resistor, transistor, and relay. The filmer said: "We use LED indicators as indicating, warning, accidental signals, and other signals of instrument circuits in the areas of electric power. On the other hand, besides the road, traffic indicators are also made using LED lights."
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DIY: How to make an indicating circuit using LED
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