This is the one I used
http://www.radioshack.com/product/in...ductId=2062478
As far as type. Whichever type closes while current is applied to it, and opens when not.
One is the postive for the board. The negative output from the board goes through the relay and back out through the positve to the battery. This is controls the relay. When current is applied the relay closes and the LED turns on.
The other is the positive for the LED. The relay is acting as a switch on the positive line for the LED.
Here is the
diagram again. It works great. Does anyone see a problem with it though?
Bookmarks