Only 8 LEDs are on at time, so two boards would need 16 * 0.02mA = 320mA. Not a problem for an Uno, not sure what regulator is on a Lilypad (or which Lilypad, there are quite a few variations).
Only 8 LEDs are on at time, so two boards would need 16 * 0.02mA = 320mA. Not a problem for an Uno, not sure what regulator is on a Lilypad (or which Lilypad, there are quite a few variations).