Practical Electronics
MIT's Edgerton Center offers this hands-on introduction to building electronic devices, covering light-activated and sound-activated toys, remote controls, timers, clocks, and motorized gadgets. The course opens with an overview of core electronics concepts such as circuits, sensors, and switching, then moves through a series of laboratory exercises that put those rules into practice. Students finish by designing and building a final project of their own, applying what they learned about components and control circuits to a working device. Materials include lecture notes and lab handouts through MIT OpenCourseWare, free to access with no certificate offered. The emphasis throughout is practical: understanding just enough theory to build real things that light up, move, or respond to sound, rather than abstract circuit analysis for its own sake.