SparkFun Tube - Aluminum (3/8"OD x 10"L 0.30"ID) Tubing GPS & Navigation Flash control: 8-step power control(1/128-1/1)

Flash control: 8-step power control(1/128-1/1) step length is 0

This is a simple 5mm LED with an interesting array of applications

Shield is compatible with 5V or 3

you’ll have your very own Simon game

If you are not comfortable doing this

SparkFun Tube - Aluminum (3/8"OD x 10"L 0.30"ID) Tubing GPS & Navigation Flash control: 8-step power control(1/128-1/1)These 10" long aluminum tubes have an outer diameter of 3 8", an inner diameter of 0. 30", and a wall thickness of 0. 035". When used with the mating tube clamps, these can be used for versatile structural support. Additionally, wires and cables can easily be run through the center. Dimensions: Length 10. 0" OD 3 8" ID 0. 30" Width 0. 035"