Thunder Tiger GT5 3-axis Gyro

[Stephan Lang]

AW: Thunder Tiger GT5 3-axis Gyro

Hello radu7,
we can discuss this in english too if this helps you more!

as i understand you had also to place the GND Pin to other PINs?! But thats not that importend because i had heard from GT5 where all pins on the TERM Ports are working... maybe this is indeed something about the HW version of the GT5 who knows...

important is that the gt5 Displays "GT5 Tool USB" as soon as you plugin and connect with the gt5 tools on the PC! Then you can firmware flash and also programm, edit, save and load config files!f
my FTDI board was on 3,3V jumped, but i guess this has also no meaning because we don't use the VCC Pins of the FTDI Board! Just the rx/tx and the GND pins!

I had a buddy who had also some trouble with a FTDI Board the issue was the USB port on his pc... he tried a different one and suddenly everything worked!

So the best bet is to trie a different USB or also USB Cable... last change if nothing works another PC!

You can easily check if the PC recognizes the FTDI dongle... inside the options menu press the detect button... when the dongle is connected to the pc and you pull it out than you should receive a message that says dongle disconnected, and when you plug-in then the com port should be set correctly! (in most cases i know about it become COM9, i tried this on different computers running Win8 and Win8.1)

oh just another hint... maybe you have some sort of virus scanner running thats blocking USB Connections...

hope this helps you!

[radu7]

AW: Thunder Tiger GT5 3-axis Gyro

Thanks Stephan! I'v always wanted to learn German, but I find speaking about technical things might not be the best way to try that.

I tried to connect to my GT5.1 and also to update the firmware with my FTDI board on two different computers. On one I could not connect regardless of where I placed the GND connection either to update firmware or to just connect with the GT5 Tools software. My FTDI board has LEDs for Tx and Rx and when I tried to connect or update I can see the Tx light flashing, but never the Rx so the GT5.1 is not seeing the Tx and talking back. So then I think perhaps you must upgrade the firmware first in order to connect using the software (the manual for the ACE dongle almost makes one think that). So on the second computer I tried to just connect and nothing, same as before. I then try to update the firmware (all pins on term port still on second PC) and it actually worked! But strangely enough even though the firmware updated with all pins on the term port on the second PC it still will not connect to the software so I can see or edit settings although I tried about 5 times only once did the 'GT5 Tool USB' graphic show and it was only for a second and disappeared. So then I move the GND connection to the same pin you show in your photos and try and it connects and shows the tool screen and works fine. So very similar to your buddy it seems something about the USB port on the first PC was not quite right (lower voltage or something). Even though I can verify it is communicating to the FTDI board it wouldn't work.

That is what made me think about the TTL signal level. Even though we aren't using Vcc there is still a voltage level that travels on the Tx and Rx pins that it uses to communicate by varying the signal from 0-3,3v or 0-5v depending on your board to represent the 0's and 1's for the information going back and forth. My board has a jumper on it that allows you to change the Vcc voltage between 3,3v and 5v and also a jumper that allows you to change the TTL (signal logic level) between 3,3v and 5v. By default mine is 3,3v on both and I left it there as I do not know what logic level voltage the GT5 can tolerate and 3,3v is safe for just about anything since it is a CMOS level signal voltage. So I'm guessing changing the TTL level to 5v would probably make it work with all pins on the term port, but since your idea of using a different GND pin works I won't risk it.

My theory as to why the Hyperion adapter and some FTDI adapters work with all pins on term and some FTDI adapters won't work that way is because the Hyperion adapter and many FTDI adapters are set for a 5v signal logic level. Or also, like you say, there is a hardware difference or some variation in the GT5 units that causes this. Mine is a GT5.1 with hardware v1.0 that I purchased a little over a year ago.

I understand that the Spartan Flash Link adapter uses an 'open collector' method for its signal logic level where it is able to sense the logic level that the device it is connected to is using and will match that level, so that must be why it seems to work flawlessly every time and also why the cost so much more.

So with that long story I just wanted to try and solve the mystery of why some boards work as you would think and some don't, but most of all to say DANKE! since the information and experimentation that you and all the other helpful people on this thread have done allowed me to update my device with items I already had on-hand.

Best regards!
Anthony

[Hifly]

AW: Thunder Tiger GT5 3-axis Gyro

Hi Anthony,
I was able to connect the GT5 (first Hardwareversion) with the FTDI only on TERM port and it worked on Windows 7 and Windows8.1 computers (only tried the settings software as my GT5 was already updated by sending it to TT earlier). FTDI is 5V, so it should cause no problems for you trying it on this voltage level. As mentioned before I was also able to connect via Hyperion dongle, but I did not check on voltage level there.

BTW: where are you from?

[radu7]

AW: Thunder Tiger GT5 3-axis Gyro

Thanks for that information Holger. I might try changing the TTL voltage to 5v and see how that works. I have a Hyperion dongle that is used for programming their servos. The board looks the same as the one for their chargers/ESC, but has pins only on the pads for GND, Vcc, Tx and missing the pin for Rx, but it could probably be modified as it has a place for the Rx pin to be soldered on.

I am from Alabama in the United States. Thanks again for your help!

[Stephan Lang]

AW: Thunder Tiger GT5 3-axis Gyro

The BeastX Dongle is also a one-Wire serial2USB ... i tried to figure out how to rewire the pins of the CP210x chip on the dongle, shouldn't be the biggest problem, there a few solderpoints available... but there are other components that combine the rx and tx ports.... and guess without spliting the lines completely out it wouldn work either...

Here is a datasheet of the CP2102 what is used on the BeastX Dongle...
http://www.silabs.com/Support%20Docu...s/CP2102-9.pdf

i've decided to didn't try to mod the beastx dongle anymore... its easier to buy another dongle what is working with none or minium modifications still ThunderTiger releases the dongle.... i guess no one will want to mod his beastX dongle to flash the gt5 and do some minimal programming and cannot use it anymore for the beastx...

for me the only thing was to flash the gt5's and add the "background" logo...
i love the way how gt5 is programmed with its touch sensor and the display... so for me i didn't use the pc software to config the unit.... maybe to save a setup sometime... but even for that the gt5 is programmed in 15mins for me so not really a need to save and load setups....

[radu7]

AW: Thunder Tiger GT5 3-axis Gyro

I agree with all your points. I think the Hyperion servo programming dongle is similar to the way the Beastx dongle is as one pin is labeled Tx/Rx so there must be some signal splitting elsewhere on the board.

The GT5 really is an impressive unit with the way it programs via touchpad. Now that you can program it via PC and also modify the logo and make backups of your settings it is that much better. If it could also perform vibration analysis that would really put it over the top. I guess some people would also like a self-level or rescue, but I hear there may not be enough memory on it to allow self-level. I'd rather have the vibration analysis than self-level if I had a choice though.

My local reseller says they may be getting the new GT5.2 in late February. I don't know if I like the white case so much, but I was thinking that it would help keep the GT5 a little cooler than the black case if you fly in hot sunny weather.

[fred99]

AW: Thunder Tiger GT5 3-axis Gyro

Gibts hier zufällig jemanden mit einem T-Rex 700DFC HV und könnte mir ev. das Setup als ungefähren Anhaltspunkt zukommen lassen?

[Stephan Lang]

AW: Thunder Tiger GT5 3-axis Gyro

Nimm einfach die default werte! Bei feedforward etwas weniger... Das war bis her immer zu hoch!! Ansonsten sollte das in jedem Fall fliegbar sein!! Die drehraten muss man,dann ev noch anpassen!

[Stephan Lang]

AW: Thunder Tiger GT5 3-axis Gyro

In der Zeit wo du die frage stellst und wartest hätte ich das gt5 schon eingestellt!

[fred99]

AW: Thunder Tiger GT5 3-axis Gyro

In der Zeit wo du die frage stellst und wartest hätte ich das gt5 schon eingestellt!

Freut mich für dich

Gibts nirgendwo eine Tabelle mit den Default-Werten?
Ich will keinen Werksreset machen, da dann alles weg ist.

[WolfiE]

AW: Thunder Tiger GT5 3-axis Gyro

Das GT5 hat mit den Standardwerten auf dem Goblin500 bestens gepasst. Nur die Stabilität und Drehratenkonsistenz fürs Heck erflogen und das wars.

Beim Raptor war das leider anders, der Heli hat mit den Standardwerten auf der Rotorebene stark geschüttelt, ich musste ziemlich stark vom Standardsetup abweichen.

Taumelscheibe:
Stabilität habe ich von 80 auf 50 reduziert (eventuell geht noch 55)
Drehratenkonsistenz auf Standard 80
Ansprechverhalten der Regelung musste ich ebenfalls von 15 auf 5 reduzieren
Stickmix bin ich von 80 auf 70 zurückgegangen.

mit diesen Werten geht er ganz gut, obwohl ich mir nicht ganz schlüssig bin, ob die Stabilität nicht etwas wenig ist, zumindest wenn man folgende Passage in der Anleitung liest.

"Stabilität: .... Die Standardeinstellung von 80 sollte für die meisten Anwendungen ausreichend sein. Bei Helis der 450er Größe oder kleiner sollte der Wert auf Grund der geringe Masseträgheit Anfangs auf 60 reduziert werden".

Beim Raptor wurde nichts verändert, nur die neue Software geflasht. Habe allerdings mit der alten Software P Werte bis 120 einstellen können, ohne das sich der Heli aufschwingt.

Kurz gesagt, GT5 Hardware V1, Software V2.02 im Goblin ein Traum, beim Raptor muss ich noch ein paar Flüge machen, um mir schlüssig zu werden.

Gruß Wolfgang

[fred99]

AW: Thunder Tiger GT5 3-axis Gyro

Falls noch jemand ein Gt5 der alten Serie will:

GT5.1 GYRO TOUCH FLYBARLESS SYSTEM TTTHUNDER TIGER

Wäre interessant ob das schon die Hardware V2 Version im alten Kleid ist. Da wäre es ein wahres Schnäppchen.

...Nachtrag: Artikelnummer 8088 müsste tatsächlich schon die HW und SW V2 sein!

[Elektro-Pilot]

AW: Thunder Tiger GT5 3-axis Gyro

Hallo!
Hab seit heute neben meinem X50e mit GT5 auch einen E325S mit einem GT5.1 V2. Blöde Frage: hat jemand einen Link zu einer Anleitung?
Ich find die neue Menüführung ein bisschend verwirrend...

Mfg
Martin

[Elektro-Pilot]

AW: Thunder Tiger GT5 3-axis Gyro

Ok hab eine gefunden - Herstellerseite ist immer eine gute Adresse

[fgj99]

AW: Thunder Tiger GT5 3-axis Gyro

Moin Moin,

ich habe mein GT5 HW1.0 gestern mit der neuen Firmware 2.02HW1.0 upgedatet. Das funktionierte sauber mit dem Spartan Link. Leider bricht nun der GT5 nach den ersten Sekunden ab. Es ist nur der Startbildschirm mit dem Schriftzug ACE RC und drei kleinen Punkten unten links zu sehen.

Muss noch etwas gemacht werden wie zum Beispiel irgend eine Initialisierung der EPROM Daten oder so? Gibt es eine Möglichkeit den Werkszustand beim Einschalten zu reseten (per Jumper oder so)?

Oder hat jemand eine Idee?

Das GT5 läßt sich zum Flashen ansprechen. Der Bootloader scheint also zu funktionieren.

Danke.

Gruß Frank