To Your Basket Ordering Information Part Number: R239-WW01 Price: $26.95 Weight: 0.10 lbs The single WW-01 WheelWatcher encoder by Nubotics includes everything that you need to add a servo encoder to your robot. The incremental quadrature encoder system works with standard servos and standard injection-molded wheels. The product includes materials to assemble one WheelWatcher, an alignment tool, and an instruction booklet.

More Details:

This item has been replaced by a newer version. Check out the new WW-11 WheelWatcher encoder.

The WW-01 WheelWatcher incremental encoder system attaches to the outside of a standard RC servo, and utilizes an adhesive-backed reflective codewheel, designed for standard injection-molded robot wheels, to determine wheel rotation rate and distance traveled. It produces standard ChA/ChB raw quadrature outputs, as well as decoded clock and direction signals. The clock signal produces 25 us pulses at each transition of ChA or ChB, providing a 4x increase in resolution - 128 clocks per servo rotation. The direction signal indicates the decoded direction of rotation.

The WW-01 WheelWatcher encoder is designed to work with the plastic molded wheels that we sell. The kit can also be adapted to work with servo horns and other mechanisms by adding a CS-040-01 spacer.

If you need servo encoders for a two wheeled robot, consider purchasing the WW-01 WheelWatcher Encoder Kit.

The WW-01 WheelWatcher encoder will NOT work with DC motors such as the GM8 series. If you are using a gearhead motor, consider using a WW-02 WheelWatcher encoder.

See the Nubotics site for code examples and documentation pages.

The WW-01 WheelWatcher encoder is designed by Nubotics and distributed by Acroname, Inc.

Examples:

Nubotics WW-01 Interface to BrainStem Example