HOBBYEAGLE A3 PRO V2 User Manual

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User Manual
V1.0 Jun, 2021 Revision
Thank you for purchasing our products. A3 Pro V2 is a high-performance and functional 6-axis gyro
and stabilizer designed for R/C airplanes. In order for you to make the best use of your gyro and to
fly safely, please read this instruction manual carefully and set up the device as described below.
IMPORTANT NOTES
 Radio controlled (R/C) models are not toys! The propellers rotate at high speed and pose
potential risk. They may cause severe injury due to improper usage. It is necessary to observe
common safety rules for R/C models and the local law. Read the following instructions
thoroughly before the first use of your gyros and setup the gyro carefully according to this
manual. We also recommend that you seek the assistance of an experienced pilot before
attempting to fly with our gyros for the first time.
 After power on, A3 Pro V2 needs to perform an accurate gyroscope calibration, keep the
airplane stationary after power on and wait while the LED flashes blue. The LED will stay solid
blue if a slight movement is detected and the calibration will not start until you stop moving the
airplane, however, making the airplane level is NOT required during the initialization.
 A stick centering is also required following the gyroscope calibration. Always put all the sticks
center (the throttle stick in the lowest position) before power on the airplane, and do not move
the sticks until the initialization is done.
 Make sure to check the gyro direction of Aileron, Elevator and Rudder channels after installation
and always perform a test of them before each flight. An opposite reaction of the gyro could
lead to losing control or even crash!
 It is recommended to use the supplied 3300uF/16V capacitor to get a more stable and secure
working voltage for the gyro. The capacitor can be plugged onto any one of the free connectors
of the gyro or receiver.

HOBBYEAGLE A3 PRO V2 Specifications

General

Brand	HOBBYEAGLE
Model	A3 PRO V2
Category	Controller
Language	English

Summary

IMPORTANT NOTES

INSTALLATION

MOUNTING ORIENTATION

Proper placement and alignment of the gyro for optimal performance and correct operation.

CONNECTION

STANDARD PWM RECEIVER CONNECTION

Wiring diagram and notes for connecting the gyro to a standard PWM receiver.

SINGLE-LINE RECEIVER CONNECTION

Guide for connecting the gyro using a single wire with serial receivers.

FLIGHT MODES

GYRO OFF MODE

Disables the gyro, returning control entirely to the transmitter for testing purposes.

NORMAL MODE

Basic gyro function that corrects rotational movements, improving stability and precision.

LOCK MODE

Attitude lock mode that stops and locks the aircraft's position immediately upon stick release.

ANGLE MODE

Limits maximum angle on roll/pitch, useful for rescue or beginner training.

GAIN ADJUSTMENT

BASIC GAIN

Adjusts the fundamental strength of the gyro's reaction on Aileron, Elevator, and Rudder axes.

REMOTE MASTER GAIN

Allows remote adjustment of the gyro's overall gain using a transmitter control.

SETTING METHOD

SETUP MENU ACCESS

Instructions for accessing the main setup menu of the gyro device.

RECEIVER MENU ACCESS

Instructions for accessing the receiver configuration menu for serial connections.

SETUP MENU OPTIONS - PART 1

WING TYPE CONFIGURATION

Select the aircraft's wing configuration (Standard, Delta-wing, V-Tail).

MOUNT ORIENTATION SETTING

Set the gyro's physical mounting orientation (Flat, Upright) for correct sensing.

FLIGHT MODE SELECTION

Configure flight modes for each position of the transmitter's 3-way switch.

SETUP MENU OPTIONS - PART 2

GYRO DIRECTION REVERSAL

Reverse gyro direction for Aileron, Elevator, and Rudder to match control surface response.

LEVEL CALIBRATION PROCEDURE

Calibrates the gyro's level reference for ANGLE and LEVEL flight modes.

HOVER CALIBRATION PROCEDURE

Calibrates the gyro for vertical stabilization in HOVER mode.

SETUP MENU OPTIONS - PART 3

MAXIMUM ANGLE SETTING

Sets the maximum allowable tilt angle for the airplane in ANGLE mode.

SERVO FREQUENCY CONFIGURATION

Configures the servo update frequency to match servo specifications.

GAIN LEVEL ADJUSTMENT

Adjusts the overall sensitivity or gain level of the gyro system.

FACTORY RESET FUNCTION

Resets all gyro settings back to their original factory default values.

RECEIVER MENU FUNCTIONS

RECEIVER MENU ACCESS

Instructions for accessing the receiver configuration menu for serial connections.

RECEIVER TYPE SELECTION

Select the correct receiver protocol type for serial communication.

CHANNEL MAPPING CONFIGURATION

Assign specific receiver channels to gyro functions like Aileron, Elevator, etc.

ACCELEROMETER CALIBRATION

ENTERING CALIBRATION PROGRAM

Steps to access the accelerometer calibration mode on the gyro.

CALIBRATION STEPS EXECUTION

Procedure for calibrating the gyro's accelerometer for accurate readings.

SPECIFICATIONS