The Bourns Absolute Encoder is a digital control knob that provides 128 unique results evenly spaced around a full circle. It is designed as a control panel knob but can be adapted for other uses. This can be a good alternative to using a potentiometer and analog pin, as this allows for full-turn and multi-turn operation. It differs from the more common incremental rotary encoder which has only two or four values in a rotation and is designed to measure full rotations and direction. This measures _angles_ and absolute position is maintained between power cycles. **Includes:** * Absolute Contacting Encoder (ACE) * Mounting nut and lockwasher (9mm mounting hole) **Features:** * 128 rotary positions * 360 degree continuous rotation * Rotational life - 50,000 revolutions (min) * Max RPM - up to 120 * Absolute digital output will retain its last position between power cycles or in the event of a power failure * Threaded M9x0.75 in. bushing * 3/4 in. rotating encoder shaft * Rear mount terminals **Documents:** * [Datasheet](https://d3s5r33r268y59.cloudfront.net/datasheets/8759/2017-01-15-20-12-11/ace.pdf) * [Bourns EAW - ACE GitHub](https://github.com/arielnh56/ACE128) **Videos**
