I have a project where I want to continuously power 6 electromagnets and power 6 more every time they receive feedback from a sensor for an X amount of time.
I bought the 25/20 magnets here http://www.ebay.com/itm/262734443609?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
The situation here is that I know absolutely nothing about voltage, current, or electronics, I have only ever uploaded a pre-written code to my arduino and assembled a pre-designed schematic so this whole circuit design is impossible for me (I am willing to bet that my grandma knows more about electronics than me). A friend told me the arduino itself is not powerful enough to power the magnets, so what is? and how do i wire everything? I have many basic components including diodes and optocouplers (another friend told me these are indispensable).
Any help is greatly appreciated!