Mechanical 7-segment display made using electromagnets

When you think of a “7-segment” display, your mind naturally goes to something involving LCD or LED technology. As seen here, however, this 0-9 pattern can also be duplicated mechanically using a series of electromagnets. Neeraj Rane’s 3D-printed device is controlled by an Arduino Nano, along with a shift register. These activate seven hand-wound coils that … Continue reading Mechanical 7-segment display made using electromagnets