Arduino Nano 3.0 ~Help Required, Please!!!!~


I’m sort of new to the Arduino world ( My Arduino nano has not even come yet! ) and i was wondering i have the 3watt led lighting bar. And i wana do a blink from it, now the arduino nano normally gives out like ground ( - ) and pin 13 or something, and the led need 12volts?

My question!

How would i get 12v into the arduino and out of the arduino so i could use it to make a Blinky

Have a good read over this book: … anual.html

Pay particular attention to mophsets (sp?) and optocouplers. You will need a 12v power supply