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HPP-21 Plus+ Servo Programmer

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The HPP-21 Plus+ allows you to easily check any servo brand’s servo performance by using servo test functions and set most for the programmable parameters of Hitec digital servo types as noted below. The Plus+ unit allows you to also perform all of these functions out in the field and not be constrained to a computer. This unit is a must have for those using Hitec digital servos in various applications.

The HPP-21 Plus+ will program the following features of these Hitec digital servos:

  • All HS-7XXX G2 servos: Fully programmable, including OLP Rate and high resolution adjustments.
  • Some HS-5XXX types servos: Fully programmable Feather and Micro Digital servos including OLP Rate; excluding high resolution adjustment function (HS-5055, 5056, 5082, 5085)
  • Other HS-5XXX type servos: All features are programmable except OLP Rate and high resolution adjustment functions.

The HPP-21 Plus+ does not come from Hitec with an interface cable.  You will need the HPP-21 Interface Cable. If you have your own cable, make sure that it is 3 feet or less in length.


Fail Safe on/off
Direction of rotation
Resolution Setup (G2 Hitec Servos Only)
Travel Speed
Center, End and Fail Safe Point
Dead Band Width
OLP Rate (Overload Protection Rate, G2 Hitec Servos)
“Save and Open” File Options
Reset Servo to Factory Default Program

programmer table

Product Weight .70 oz
Interface Styles Computer
Servo Compatibility All HS-7XXX G2 servos / Some HS-5XXX types servos / Other HS-5XXX type servos

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