mashematician Karma 17 Created 13 years ago Recent Submissions 1. ▲ Show HN: Open Source LED-lit cycling backpack controlled by NES controller (github.com) 5 points · 12 years ago · 0 comments 2. ▲ A Programmable Quadrotor (kickstarter.com) 3 points · 12 years ago · 0 comments All submissions on HN · View profile on HN