I have a need to operate an item that uses 12VDC @ 10amps intermittently. The intermittently would be defined by a timer for the on/off period and the duration of the off. Sounds like a pretty good job for a microcontroller such as the Arduino.
So on to the questions...
I need to buy a relay with a 12V @ 10amps rating on one of the throws. The other throw should be able to be triggered or untriggered based on the load the arduino can drive to it. I need to find this load, so I buy the right part.
The questions are:
Anyone driven a 12VDC relay with an arduino? Which part is recommended?
What is the maximum safest load I could drive from an arduino pin in volatage and amperage? This will define the relay that I buy and the wire grade that I use.
Can the Arduino be run on DC power for this application?
Appreciate any insights anyone can offer, I hope to finish my project very quickly after hearing back and will post to the other thread about the outcome.