I just purchased a Lilypad kit that includes the Lilypad Arduino 328. I am trying to get my brother to do something creative with his fashion interests, so we're going to make some clothes with blinking lights!
Given the setup of this particular Arduino, would anyone know how many [u]individual[/u] LEDs we can control? I understand that you can have a set of lights in parallel and have them all turn on at once, but we want individual control.
Also, how do I know what size resistor to use with a particular LED? Not sure what LED to buy just yet, but given this arduino's setup i would assume i am working with... 5 volts per output? How does one know what kind of resistor to use with an LED?
Thank you for taking the time to read my question. Your help would be so GREATLY appreciated! -Sebastian