Abstract: In this paper, we present a prototype of a low-cost short-distance Free-space Optical link auto-alignment system using Arduino Uno R3 and a stepper motor controlled using a precise ...

Abstract: This paper discusses the design, construction, and control of a two-wheel study level, small self-balancing robot. Two-wheel robots are compact and require less number of motors and other ...

These components are probably the most valuable parts you can salvage from old gear. They are essential if you are working on ...