Parallax Quadrature Encoder Set User manual

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Copyright © Parallax Inc. 36-position Quadrature Encoder Set (#29321) v2.0 1/22/2016 Page 1 of 2
36-position Quadrature Encoder Set (#29321)
The Parallax 36-position Quadrature Encoder Set conveniently
provides rotational feedback for robotic or mechanical drive
systems. Although these Encoders were designed specifically
for the Motor Mount and Wheel Kit #28962 (which is included
with the Arlo Complete Robot System #28966), it can be used
for many other applications that require real-time rotational
feedback. Therefore, you can use this kit with your own
custom robots or any mechanical systems with ½” diameter
axles.
Although earlier versions of this kit
did not require soldering,
they now do. This provides more flexibility for cable routing
in order to make more reliable connections.
Features
Provides two out-of-phase outputs from
within a single sensor assembly
36-position Delrin encoder disks are incised
to firmly grip ½” diameter axles
Dual-signal out-of-phase outputs indicate
direction, pulse widths indicate speed, and
number of pulses indicates distance traveled
Small form-factor and low voltage/current
operation are easy to integrate with your
robotic system
6-pin, single row header with 0.1” spacing
provides a simple 4-wire or dual 3-wire
interface
Kit Contents
(2) Quadrature encoder circuit boards
(2) Encoder disks, 36-position
(4) 3-wire extension cables, 12”
(4) flat-head screws, #4-40
Specifications
Power requirements: 2.5 VDC @ 3.5 mA,
3.0 VDC @ 5.0 mA, 11.6 ma @ 5.5 VDC
max.
Communication: two-channel high/low pulse
output
Dimensions: 2.0 x 1.1 x .25 in (5.1x 2.7 x
0.6 cm)
Operating temp.: 32–158 °F (0–70 °C)
Tools Required
Small Philips screwdriver
Soldering iron
Solder
Flux
Safety eyewear

Copyright © Parallax Inc. 36-position Quadrature Encoder Set (#29321) v2.0 1/22/2016 Page 2 of 2
Assembly Instructions
You can solder each of the 6-pin right-angle headers in any orientation you choose, depending on your
application. If you are using these Encoders with the Parallax Motor Mount and Wheel Kit (#28962), then insert
the right-angle portion of the headers into the boards as shown below. This allows all four of the encoder cables
to go in the same direction when mounted to the Motor Bearing Blocks.
Next, connect two 3-pin cables to each of the Encoder Boards as shown here. The Black wires are ground, the
Red wires are +V (typically +3.3v to +5.0v) and the White wires deliver the pulses to your circuit,
The (4) Phillips-head screws are used to mount the boards to the device of your choosing. Typically they will be
used to attach the Encoder boards to the Parallax Motor Mount and Wheel Kit (#28962)
Revision History: Version 1.1; soldering now required.