This "Incremental quadrature encoder system" is specially designed by Nubotics to retrofit to the GM2, GM3, GM8 or GM9 gear motor. If you need to control a robot for dead reckoning, tracking odometry (distance travelled), stalled motor, or closing the feedback loop for position/velocity/acceleration, this is your solution.

It features:

32 stripe codewheel

Hardware quadrature decode with 4x multiply for 128 clocks per rotation

Mates with GMPW / SW wheels

The Nubotics documentation contains all assembly & application notes to successfully implement your Wheel Watcher.

This kit contains a single preassembled sensor board, codewheel, and wiring kit.

Note: The GM2 & GM3 need GMWWS spacer for proper operation, due to their longer output shafts. So unless you're comfortable in cutting down the shafts on your own, these are the ideal solution.

Downloads
Wheel Watcher WW02 User Manual