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Old Jul 31, 2011, 12:57 AM
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Flysky GT3B Custom Firmware thread

There has been a new firmware developed by a member, PSX, on RCtech that fixes all the problems with the GT3B and adds alot of features. Making it the ultimate affordable radio. However locating the parts and actually flashing the firmware to the gt3b can seem difficult. So i have started selling a kit that includes all the necessary parts to flash the GT3B and i'm currently in the process of writing very simple and easy to follow guides. My installation guide is nearly complete, just needs revised, and edited to fix typo's and such.

Here is a copy of my current install instructions

http://www.overkillrc.com/GT3B/GT3B%...raft%202.0.pdf

If you'd like to order this kit, please visit my website, www.OverKillRC.com you can find a firmware hack kit, all its parts seperate, and pre-flashed GT3B's with the hack kit installed

i belive this is all the new features the firmware offers in addition to the ones already there...there may be more

- ~15 model memory depending how many channels your firmware is
- Sub trims
- More trim value (from 30 to 99)
- copy models
- fixed expo
- Model reset
- Steering speed
- 4WS Mixing
- Dual ESC Mixing
- Dual ESC steering
- Multi Positions Switches (Up to 8 True positions out of a single push button)
- Key Mapping (any key can control any channel in many different ways)
- Calibration Menu
- Key Test Menu
- Backlight on time
- Inactivity Alarm
- Adjustable Low volatge warning
- Adjustable Maximum End Points (Up to 200% i think
- Adjustable dead zone for steering and throttle
- Turn keep beeps on/off
- Adjustable long press delay


The Trim and d/r keys can do this

- nothing, it is possible to assign each button individually as key
- trim of channel 1/2
- dualrate of steering/forward/back
- expo of steering/forward/back
- change channel "n" value in range -100...100
- subtrim of channel "n"
- 4 wheel steering mix -100...100%
- DIG throttle mix -100...100%
- Multi-POsition, switches position up/down
- steering speed turn 1...100%
- steering speed return 1...100%


They Can be setup to act like this

- momentary, hold left/right trim key to get end values,
when nothing pressed, servo is at centre
- no long keys, long press is the same as short press
- autorepeat is on
- long press of one of trim keys will reset to
centre/reset value
- long press of trim key will set to coresponding end value

And they can have an adjustable step rate, opposite click reset, reversed, etc.

And the Keys (ch 3 button, back button, end button, and the trims if set individually)

- nothing
- switch channel "n" value from one end value to opposite end
value.
- reset value of channel "n" to centre
- switch crab (CRB) no-crab (NOC) for 4 wheel steering
- switch DIG mix between -100 and 100 (more useable when using
return to previous val key setting)
- Multi-POsition, switches position up (at END back to 1.)
- Multi-Position Reset, switches position to first one
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Last edited by losikid; Jul 31, 2011 at 01:13 AM.
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Old Jul 31, 2011, 12:58 AM
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OverkillRC Important Links

Firmware Data base (archive of all released firmware)

Hack Kit Install Instructions
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Last edited by losikid; Jul 31, 2011 at 01:07 AM.
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Old Jul 31, 2011, 12:58 AM
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RCTech Important Links

Summary of thread, and all important stuff posted

How to Install custom FW tutorial

PSX source Code page
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Last edited by losikid; Jul 31, 2011 at 01:10 AM.
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Old Jul 31, 2011, 01:12 AM
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PSX did develop this as open source, so if any of you coders from the 9x thread or anyone else want to jump in on this boat and have some, there's room for you.
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Old Mar 11, 2014, 09:26 PM
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Joined May 2012
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So assuming i were to keep the radio as 3 channels, how much model memory would i be able to get?
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