Eagle Tree Guardian 2D/3D Stabilizer - Manual (Page 9)

Copyright 2013-2014 Eagle Tree Systems, LLC Page 9
Figure 9: Mode/Config Switch
LED Indication during Steady State

Solid On: 3D Mode

One repeated blink: 2D Mode

Solid Off: Stabilization Disabled
Additional LED Messages

2 repeated blinks: Radio Stick Menu is active

3 repeated blinks: USB is connected

4 repeated blinks: Error condition. Error type is indicated by a pause and a number of additional, faster blinks:
o One blink: Brownout – BEC or receiver battery is providing insufficient power for your servos and the Guardian. See the BEC/Receiver Battery
Power Requirements section above.
o 2 – 5 blinks: Memory / Calibration Errors – Repower the Guardian to clear. If this problem occurs repeatedly, contact technical support.
o 6 blinks: Sensor Fault – If this problem occurs repeatedly, mechanical stress or damage to the board may have occurred.
o 7 blinks: Internal error. If this problem occurs repeatedly, contact technical support.
Mode/Config Switch Behavior
The Mode/Config input on the Guardian lets you change your stabilization mode in-flight between 2D Mode, 3D Mode and Disabled (if a 3 position switch is used).
Additionally, you can configure the Guardian in the field via a series of toggles of the Mode/Config switch (within 15 seconds of Guardian power up), referred to as
“Configuration Gestures”.
Leaving the Mode/Config input disconnected will cause the Guardian to switch to the Default Flight Mode. The factory default of this setting is “2D Mode.” If you want to
use a different mode in this case, you will need to use the PC software to set the mode, or temporarily connect the Mode/Config input to change the mode via the radio stick
configuration. See the Default Flight Mode menu item in the List of Features and Options section below.
Flight Mode Selection
Please refer to Figure 9. The Guardian has three main operating modes (described earlier) that can be set by the Mode/Config
switch position:

Down: ( Position 2 , -100%, 1.1ms): 2D Stabilization Mode:

Middle: (Position 1, 0%, 1.5ms, only available if you are using a 3 position switch): None – No stabilization or
damping. All servo signals are directly passed through. (Elevon and V-Tail mixing is still performed)

Up: ( Position 0, +100%, 1.9ms): 3D Stabilization Mode
The meaning of each switch position can be custom defined through the PC Software. See The Mode Config Tab in the
The Guardian Configuration Page Software Reference section of the manual, for more information.
Configuration Gestures
Within 15 seconds after Guardian power-on, the Guardian can be configured by toggling the Mode/Config switch back and forth rapidly. The number of times you toggle
the switch determines which configuration step is performed. Note that if you have a 3 position switch, its center position is not used during toggling.
The switch you are using on your radio must be configured with its endpoints at approximately -100%, 100% for Configuration Gestures to work correctly.
Here is a table of available configuration gestures, and what each does:
Reset Level Flight and Trims : 1 Toggle (up-down if the switch is presently down, or down-up if presently up)
After changing the trims on your controller or mounting orientation, you must let the Guardian know about this change so it can best control your airplane. Without this
information, 3D Heading Lock will not work and stabilization performance will be degraded.
To update the trim and level flight information for your controller in the Guardian, quickly toggle the Mode Switch back and forth once within the first 15 seconds after
power-on. You will know that the level flight orientation and trims have been reset when the servos both twitch once and then immediately return to normal movement.
If no twitch occurs when executing Reset Level Flight and Trims, it can either be because the switch gesture was not done quickly enough or within the first 15 seconds
following boot. Alternatively, if the Guardian is mounted too far off of level flight (greater than 25 degrees in either Pitch or Roll), the Reset Level Flight and Trims will
fail, presenting no servo twitch.
Reset Trims Only: 2 Toggles (up-down-up-down if the switch is presently down, or down-up-down-up if presently up)
Use this gesture to reset your trims without needing to also reset your level flight orientation.
To quickly update the trims of your plane in the Guardian, quickly toggle the Mode Switch back and forth two times within the first 15 seconds following power-on.
(Example: up-down- up-down) You will know that the trims have been reset when the servos both slowly twitch twice and then immediately return to normal movement.
Toggle Elevon Mixing: 3 Toggles (up-down-up-down-up-down if the switch is presently down, or down-up-down-up-down-up if presently up)
A shortcut method for switching between normal and elevon mixed airframes.
To quickly switch elevon mixing on and off without needing to go into the Radio Stick Menu or use the PC software, quickly toggle the Mode Switch back and forth three
times within the first 15 seconds after power-on. You will know that the mode has been changed when the servos both slowly twitch three times and then immediately
return to normal movement. After this, moving your control sticks will reflect the current mixing configuration.
This action will toggle from Normal or V-Tail Mode to Elevon Mode and from Elevon Mode to Normal Mode.
Enter Radio Stick Menu: 4 Toggles (up-down-up-down-up-down-up-down if the switch is presently down, or down-up-down-up-down-up-down-up if presently up).
Enters menu mode (described below).
Radio Stick Menu Operation
The Guardian 2D/3D Stabilizer has many advanced features that can be configured through the Radio Stick Menu.
Entering the Radio Stick Menu