I have previously connected 5V 10A relay switches to my Arduino.
But for my new project I need to use a 5V 30A relay switch with my Arduino.
In 10A relay switches, we make connection with Arduino using GND, VCC and IN.
But for 30A switches, there are DC+, DC-, IN.
My question is that, how do I connect my Arduino to the relay using these pins?
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DC+ = VCC. Dc- = gnd. In = in.Majenko– Majenko2019年07月27日 08:06:33 +00:00Commented Jul 27, 2019 at 8:06
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@Majenko Thank you! That answered my question. So, how do I close it?Rajat– Rajat2019年07月27日 08:21:14 +00:00Commented Jul 27, 2019 at 8:21
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You can mark Hobbes' answer as accepted. (Majenko was faster, but he does not seek the merits, obviously)DataFiddler– DataFiddler2019年07月27日 09:37:02 +00:00Commented Jul 27, 2019 at 9:37
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Plus I was in bed and using my phone, so it's easier to just drop a comment so the OP has the answer they need then later, if it's still needed, craft a proper answer. :)Majenko– Majenko2019年07月27日 10:26:18 +00:00Commented Jul 27, 2019 at 10:26
1 Answer 1
From the Amazon page you linked to:
1 dc+ : Dc power supply positive pole
2 dc- :Dc power supply negative pole (i.e. ground)
Arduino:
VCC: positive DC power supply
GND: ground
technically, VCC = the voltage at the collector of a transistor, these days it's used as shorthand for the positive output pin of an IC.
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