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Topic: Arduino Relay Controll (Read 558 times) previous topic - next topic

Arduino02

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.

bld

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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