![]() |
![]() |
![]() |
![]() |
|
|
|
Discussion
Open Flight Stabilizer
post last updated on 20150201
please regularly check the V3 documentation file for current build status. JohnRB maintains an Open FlightStab News section with updates. -------------------------------------------------------------------- JohnRB Update 20141226: Updated OFS Firmware Open FlightStab firmware has been updated to add support for Graupner and Multiplex SRXL. The firmware changes made by user ingo_s have been merged into the project. The Builds include Hex files for many of the different boards that OFS supports. Only the 2 RX3S V2 SRXL versions have been test by ingo_s. If you wish to use a version other than those tested, do a very through ground test before flight. The documentation has also been updated. Source and Hex files link. Documentation Link. -------------------------------------------------------------------- Original Post starting this thread to discuss the development of an opensource flight stabilizer. i started this project after looking at various flight stabilizers and also getting the HK RX3S. i didn't like the performance of the V1 device (non-linear VR gains, no remote AUX gain control, stabilizer fights me on aerobatic manoeuvres). so, the goal is to hack the RX3S V1 and V2 and replace them with better firmware. JohnRB and i currently maintain the master branch for the flightstab firmware.
ckleanth has also helped very much with documentation. LazyZero has a flashing tool that simplifies flashing devices http://lazyzero.de/en/modellbau/kkmulticopterflashtool there is also a nice blog of a walkthrough with pictures on how to program the RX3S devices and a flight report from mikejr83 at
and thanks to many others in this thread that have suggested great ideas along the way. standard disclaimers apply. please review and use it at your own risk. i'm not responsible if you bricked your plane, lost your RX3S, or both ![]() |
|
Last edited by noobee; Feb 01, 2015 at 06:19 PM.
|
|
|
|
|
...
|
|
Last edited by Radio.Active; Jun 12, 2013 at 06:59 PM.
|
|
|
|
|
Latest blog entry: MiniHub+ - S.Port Telemetry Hub for...
|
|
|
||
|
Quote:
ah, ok ![]() interestingly, this is probably much easier to do on the RX3S V1 than on the V2, since the ISP connector pins are exposed and can be repurposed for RX use. i'll update the first post to maintain a feature-request list. |
|
|
||
|
||
|
Quote:
argh!! |
|
Latest blog entry: MiniHub+ - S.Port Telemetry Hub for...
|
||
|
|
|
|
|
|
|
||
|
Quote:
with the v1 you have three dip switches, i havent checked your code but if you use two dip switches for your check loop then you can have six combinations for operation modes. clever idea the reversing function using the gain knob but how sensitive is the gain adjustment because of the available knob rotation. have you changed the max value? with the v2 yes a lot more dip switches (I dont have a module yet but I think its five) again if you use two dip switches for your check loop then you can have ten combinations for operation modes (if you want). for normal mode the aux woud have the off/on function for flaperons you can use the aux as input so you wont have the off function without mods for quadcopter 4 in 4 out as you said but so you wont have the off function without mods vwing delta etc requires mixing btw do you have enough memory on the cpu ? |
|
Latest blog entry: MiniHub+ - S.Port Telemetry Hub for...
|
||
|
||
|
with 2 dip switches, i think there would be 4 combinations. assuming "1" is in the rev position, the settings right now are:
(rud, ele) (0, 0) NORMAL (0, 1) VTAIL (1, 0) DELTA (1, 1) DELTA i could use (1, 1) for NORMAL-FLAPPERON, which would reassign the pinouts to include another RX AIL2-IN. @yashiro, do you use flapperon in normal mode (eg. 3d planes) or vtail mode (eg. gliders)? if you want flapperon with the v1 device, you can use two ISP pins for AUX-IN and AIL2-IN. if you want flapperon with the v2 device, you probably need to solder a wire from one of the dip switches for AIL2-IN (since V2 already has a AUX-IN pin). the VR knobs are quite linear now compared to the RX3S V1 implementation. i heard the V2s are better. HK must have fix the errors due to integer division. right now, memory use for the RX3S is around 9400 bytes (out of 14000+), so there's still plenty of space. i could also use simpler implementations of the i2c library and itg3205 (gyro on the RX3S) to reclaim space if need (not at this time). Quote:
|
|
|
||
|
||
|
Quote:
![]() why you need to do this? |
|
Latest blog entry: MiniHub+ - S.Port Telemetry Hub for...
|
||
|
||
|
Quote:
It considers using by glider. A flaperon is important. The priority of V-tail is low. |
|
|
||
|
|
|
|
|
|
|
||
|
Quote:
Code:
(rud, ele) (0, 0) NORMAL (0, 1) VTAIL (1, 0) DELTA (1, 1) FLAPPERON (normal tail) |
|
|
||
Thread Tools | |
Similar Threads | |||||
Category | Thread | Thread Starter | Forum | Replies | Last Post |
Sold | Flight Stabilization System with Programing Card | Woody_99 | Aircraft - Electric - Helis (FS/W) | 1 | Mar 23, 2012 12:50 PM |
Sold | Flymentor Flight Stabilization with Field Programmer | Woody_99 | Aircraft - General - Radio Equipment (FS/W) | 0 | Mar 17, 2012 07:43 AM |
Sold | Totally Tricked out 400 size with flight stabilization installed, BNF | Woody_99 | Aircraft - Electric - Helis (FS/W) | 2 | Mar 12, 2012 06:56 AM |
Wanted | FY-30A Flight Stabilization System | Casey_S | FPV Equipment (FS/W) | 0 | Mar 05, 2012 02:40 PM |