Got too much data for 10 measly segments? This kit contains a PCB and all the parts needed to build a 30-LED bargraph that can be driven by an Arduino or other microcontroller. Project description, more information and ordering can be found at https://www.sparkfun.com/products/10936 Datasheet: http://www.sparkfun.com/datasheets/Components/LED/YSLB-102510R3-10.pdf Datasheet: http://www.sparkfun.com/datasheets/IC/SN74HC595.pdf Arduino library and example code: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Kits/SFEbarGraph11.zip Kit Guide: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Kits/Bargraph Breakout Kit 111227.pdf