This is an example in the "Getting Started with Arduino" (Make Magazine)

You're going to need:

  • one 220 Resistor 
  • an led 
  • a breadboard 
  • an arduino
  • two jumper wires

After you've collected the parts, just build the circuit the way I've done so here. 

 

follow this Link to get a FREE PDF of "Getting Started with Arduino" 2nd Edition. This is where you can find more information about this circuit* and more!

 

*pg. 56, Figure 5-4