Understanding the Principles of the numeric indicator in a DIY project for kids Beginning a hands-on student activity centered on visual feedback requires a solid grasp of how a 7 segment display works.|The 7 segment display is the interface that allows electronic machines to show decimal information for human viewers.} https://blazebase.blogs100.com/40342851/the-science-of-light-scintillation-in-a-7-segment-display