wheel encoder system



The WW-11 WheelWatcher incremental encoder system enables robot builders to quickly add closed-loop control to their robots. The WW-11 provides quadrature outputs, decoded clock and direction signals, or serial output of position and velocity.

More Details:

The WW-11 WheelWatcher incremental encoder system enables robot builders to quickly add closed-loop control to their robots. The WW-11 provides standard ChA / ChB raw quadrature outputs (90 degree phase shift between channels), decoded clock and direction signals, or serial output of position and velocity.

The clock signal toggles at each transition of ChA or ChB, providing a 4x increase in resolution compared to the number of stripe at 128 clocks per servo rotation - while the direction signal indicates the decoded direction of rotation, making it very easy to add to any microcontroller.

The new serial output mode does all the hard work for you - it keeps track of and reports current position (a signed 32 bit integer) and also measures and reports current velocity in encoder ticks per second. Serial data is output only when encoder ticks occur, up to a rate of 100 updates per second at 38400 baud.

Dimensions:

All dimensions are in inches and approximate unless otherwise specified.

 


 

Pololu item #: 1218

 

Pololu 42x19mm Wheel and Encoder Set

This set includes a pair of 42×19mm wheels, a pair of extended brackets, and two matching encoders. Just pick a pair of micro metal gearmotors to complete your feedback-enabled drive system.


Pololu item #: 1217

 

Encoder for Pololu Wheel 42x19mm

This quadrature encoder works with our micro metal gearmotors, 42×19mm wheel, and extended bracket to measure the rotation speed and direction of the wheel. With twelve teeth on the wheel, the system provides a resolution of 48 counts per revolution, which corresponds to a linear resolution of just under 3 mm or 1/8".

       


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