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Topic: Arduino Relay Controll (Read 610 times) previous topic - next topic


I want to control a relay with an arduino uno. The relay I'm going to use is this one http://www.robotshop.com/ca/seeedstudio-electronic-brick-250v-relay-module.html. I plan on using it to control 12 volt fans is it 250 volt ac or dc. because if its ac I can wire up an edison outlet and plug in the transformer to it. Are there any other parts I need. Will 12 volts be ok on the 250 volt output side.


That is all you need, the relay is driven by the 5V coming from the arduino, and is using a 2N2222 to pull the relay.

The voltage on the contact side in the relay does not matter, as this is a mechanical relay. Just stay under the values printed on it.
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