6 Chnnel Relay Module Making

By | April 7, 2019

4 thoughts on “6 Chnnel Relay Module Making

  1. Renan Wrobel

    Hello. Really nice video. It’s possible to do the same way but with 3,3v relay?

  2. Debabratta Jena

    the direction of led seems opposite, when i do connect according to circuit led and relay didn’t turn on but when i reverse the polarity of led connection my led glows, that is when I connect the positive lead to tha base of npn, led doesnt glow but when i connect the negative lead to the base of npn led glows. please clear my doubt.


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