Blackboard reader device

grabcad

This device boasts user-friendliness as its main feature, with all aspects revolving around this idea. Featuring enhanced feedback visibility, the bottom casing's semi-translucent polycarbonate plastic illuminates when sending notifications, aided by a textured surface for light scattering. Color codes include green for permit, red for deny, blue for Bluetooth establishment, yellow for low battery, and varying colors for on/off/sleep modes. The minimalistic design omits separate LED indicators, resulting in a cleaner appearance and less confusion for new users. The power switch is conveniently located at the back, away from the main view. Ergonomics are considered with a hand-fit size and shape, along with a magnetic stripe reader slot at the top and an easily accessible power switch. Manufacturing simplicity is ensured through injection molding operations for all components, straight pull designs without undercuts, and mounting options using bendable acrylic sheets. The case and battery lid can be separated by unscrewing.