Battery - make a pack with 3 C cells for 3 D cells, bring that 4.5V power to the Uno 5V/GND header pins, to the chipboard +5/GND pins, and 5V out to the LEDs also.
9V battery won't last long at all.
Battery - make a pack with 3 C cells for 3 D cells, bring that 4.5V power to the Uno 5V/GND header pins, to the chipboard +5/GND pins, and 5V out to the LEDs also.
9V battery won't last long at all.