I have a 5 V 10 Amp relay module and a Raspberry Pi 3. I am using it to connect to a submersible pump which runs on AC power. Can I use the 5 V GPIO pin of the Raspberry Pi or do I need to buy a DC adaptor?
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2How much current does the spec sheet of this anonymous module say it needs?– MilliwaysJun 16, 2017 at 6:02
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It seems that there is another question regarding this topic raspberrypi.stackexchange.com/questions/34512/…– LouiBazzJun 20, 2017 at 2:47
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The module is rated 5 V 10 Amperes– Shreyas MishraJun 22, 2017 at 4:44
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Does this answer your question? What things I can use for turning on a relay?– DougieMar 20, 2021 at 16:54
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2 Answers
This might help. You should stay away from the RPi with relais and so on from a power point of view. The RPi is not made to provide power for those devices. The RPi is only capable of controlling them the way I describe in the above mentioned link.
I'm not sure you have a clear understanding of what's going on. Or perhaps I can't read what you wrote.
You need an AC->DC converter. This is not negotiable. Whatever you give power to the Pi through the USB or the +5V pin changes little. Decent industrial 220VAC -> 5VDC converters for this power can be as little as 10 bucks. 220VAC to pi = BOOM.
You will need a supporting relay board.
