SMART PIXEL LED STRINGS PRO
Otherwise, using the Pro Mini, the first star will have to be the compartmented version referenced in this Instructable. If another type of Adrduino board is used, an external enclosure will have to be used/designed/fabricated and the simple flat version can be used for all of the stars. There are two types of star hubs one is flat with holes for the star spokes and one has a compartment for an Arduino Pro Mini in addition to the holes. Using the basic program provided here (which limits the LED brightness to 50%), I have driven 19 stars with a 2 amp "wall wart" supply. The 5 volt power supply must source enough current to drive the number of stars in your string.