I'm trying to prototype a new project using an Arduino USB board. It is very simple; 8 LEDs are connected to the board with a push button. Each press on the button causes one LED to turn on. This behavior continues till all LEDs are on.
Now, in my shopping cart, I have:
Arduino USB Board
Mini Push Button Switch
One 10k pull-up resistor
Eight Basic LED - Red
5V DC to DC Step Up - 2xAA
Breadboard Small Self-Adhesive
Will the 5V DC to DC Step Up be enough to power the circuit?
Not knowing the exact part your buying, if your looking at something like this -
you should be fine. It delivers 200Ma. From memory, the Arduino takes about 60Ma and red LEDs with 330 Ohm resistors about 9-10mA each.
So 60 + (8x10) = 140 mA - less than the 200mA.
(220 Ohm resistors would use about 13mA/led, so your still OK.)
[edit]Note, if you go this way, you would power the Arduino from the 5V pin and not the power jack.[/edit]