I have those exact items used in that tutorial. (although I'm not sure if my LED is the exact same)
I understand that I can use one LED with that, but what if I would like to connect more than one LED (I'd like to connect two.... or eight. but at least two) The bright white LEDs I have are 3volts.
Do I connect them in parallel? If I get LEDs with even less voltage(is that possible?1.5V?) does that mean I can connect more of them?
With the lilypad arduino and the lilypad power supply(one AAAbattery), what is the maximum number of 3volts normal LEDs I can connect?
I saw a tutorial with the lilypad+AAAbattery powersupply and 16 lilypad-LEDs.
this one: http://web.media.mit.edu/~leah/LilyPad/build/turn_signal_jacket.html
unfortunately I am unable to purchase the lilypad LEDs right now.
Here is the page for the lilypad-LEDs: it doesn't seem to say how many volts it is? I'm probably reading it wrong 
LilyPad LED Bright White - DEV-08735 - SparkFun Electronics
I'm wondering what is the difference between normal LEDs and the Lilypad arduino LEDs? do the lilypad LEDs have resistors/something built in?
thank you so much for reading this, I hope I didn't leave out any information/really, thanks so so much.