Thumbwheels

A thumbwheel is a type of rotary encoder that allows a user to input data by rotating a small wheel with their thumb. These components are often found on electronic devices and control panels. They provide a tactile and intuitive way to select values, adjust settings, or navigate through menus. Thumbwheels typically output a digital signal that indicates the direction and magnitude of rotation. This can be either absolute, meaning the encoder knows its exact position at all times, or incremental, where it only tracks changes in position. The output signals are usually binary or Gray code, which can then be interpreted by a microcontroller or other digital logic. Thumbwheels are valued for their durability, ease of use, and the clear feedback they provide to the user, making them suitable for applications ranging from consumer electronics to industrial equipment. They offer a distinct advantage over simpler push buttons when continuous adjustment or selection from a range of options is required.