This great little prebuilt module uses a microcontroller to drive 8 LEDs in 16 different patterns (some patterns are repeated at different speeds to make up the total of 16 modes). There is also a demo mode that runs through all patterns continuously.
The module requires a DC supply from 8 to 14 volts and comes complete with a 9 volt battery snap so it can be used with 9 volt batteries, as well as battery holders that have these terminals.
This is a great little module that has many uses, including safety lights for bikes, xmas decorations etc.
Available in Red, Amber, Green, Blue, White, Red/Blue combo and now the new multicolour, which has two each of red, blue, green and amber LEDs.