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I am trying to control a 6V DC door opener which requires 660 mA current supply. Since the Pi only tolerates a maximum of 5V without a relay. As per my research I need a solid-state relay with transistor. These are specification of door opener which I am using Current consumption DC (50% residual ripple)12V, current consumption DC (50% residual ripple)6V, current consumption DC (stabilized)12V 1300mA, current consumption DC (stabilized)6V 660mA.

I have question how much volt of relay will be required depends on which criteria.

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    learn from both tutorials ... asking which tutorial to follow is not a question about Raspberry Pi, so it is off topic here
    – jsotola
    Sep 28 at 15:34
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    Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer.
    – Community Bot
    Sep 28 at 20:40
  • You can buy, instead of DIY a relay module.
    – tlfong01
    Sep 29 at 0:56
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    @tlfong But I have a dout what are therequirement for choosing ow much volt the Realy should be. If my Pi is already connected to one other crcuit which is supplying 5V for further reading.
    – Jen
    Sep 29 at 7:46
  • @Jen, I would suggest newbies to learn this way: (1) Buy a 5V High level triggered relay module, (2) Try switch on/off a LED, (3) Try switch of/off a 12V motor. (4) You are almost there. (5) Part A of my TLDR answer to the following question might help: electronics.stackexchange.com/questions/505318/…. Happy learning. Cheers.
    – tlfong01
    Sep 29 at 8:07

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