Data Sheet

Copyright © Parallax Inc. Parallax Feedback 360° High-Speed Servo (#900-00360) v1.2 9/12/2017 Page 3 of 7
The rotational velocity response to tControl is fairly linear. This example graph is for 6.3 V, no load.
Feedback Signal
The servo sends a feedback output signal to your microcontroller via the yellow wire connection. This
signal, labeled tCycle in the diagrams and equations below, has a period of 1/910 Hz (approx. 1.1 ms),
+/- 5%.
Within each tCycle iteration, tHigh is the duration in microseconds of a 3.3 V high pulse. The duration of
tHigh varies with the output of a Hall-effect sensor inside of the servo. The duty cycle of this
signal, tHigh / tCycle, ranges from 2.9% at the origin to 97.1% approaching one clockwise revolution.
Duty
cycle corresponds to the rotational position of the servo, in the units per full circle desired for your
application.