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#4399362 - 01/11/18 09:11 AM Any idea what the G940 sensor is? (Help with busted joystick)  
Joined: Apr 2011
Posts: 9
ben1101 Offline
Junior Member
ben1101  Offline
Junior Member

Joined: Apr 2011
Posts: 9
Manawatu
Hello!

Im trying to interface the 2 axis sensor of the G940 joystick to the MMjoy2 via arduino pro micro, however I dont even know what the sensor is let alone if it is serial or analogue output.

Stuck here, otherwise I will have to build a stick from scratch as I want to make a helicopter flight control setup.

Does anyone have a g940 main board they want to sell??

Any help appreciated, thanks!

Ben


Um.. Helicopters are imo the best.
Inline advert (2nd and 3rd post)

#4413239 - 03/28/18 08:30 AM Re: Any idea what the G940 sensor is? (Help with busted joystick) [Re: ben1101]  
Joined: Sep 2007
Posts: 951
NamelessPFG Offline
Member
NamelessPFG  Offline
Member

Joined: Sep 2007
Posts: 951
I am months late on this, I know, but if you're still out there, hear me out.

The G940 most likely uses a Melexis MLX90333 on the stick - the same sensor that the Thrustmaster T.16000-M and Warthog use, as well as the Saitek X-55/X-56. All of them have a single magnet waving over the sensor.

However, it interfaces using SPI and requires a ridiculously expensive programmer to even set up for use (thankfully, Logitech has fulfilled that part for you already). While RealSimulator may have figured out the protocol just fine (the FSSB R3 can optionally have a Warthog stick PCB added for TARGET compatibility), it is NOT something that most hobbyist controller boards and firmwares like MMJoy2 are set up for. Those tend to expect pure analog output from a potentiometer or Hall sensor, not some serial digital protocol.

Even then, you have another issue with the G940: MMJoy2 isn't set up for FFB at all, so how are you going to drive the motors acting on the stick? Even then, you'd have to support the DirectInput FFB API specifically if you want it to work in something like DCS or Rise of Flight.

Alas, I have no G940 to sell you. I sold mine years ago after finding out first hand how cheaply built it was. All I can suggest there is to keep your eyes peeled on eBay.

#4413309 - 03/28/18 03:41 PM Re: Any idea what the G940 sensor is? (Help with busted joystick) [Re: ben1101]  
Joined: Nov 2001
Posts: 3,874
Sokol1 Offline
Senior Member
Sokol1  Offline
Senior Member

Joined: Nov 2001
Posts: 3,874
Internet
Quote
... firmwares like MMJoy2 are set up for. Those tend to expect pure analog output from a potentiometer or Hall sensor, not some serial digital protocol.


MMJoy2 firmware are not programmed for manage "3D" sensor (like Melexis MLX90333 of X-55/56, Warhog, T.16000M or the model (?) used in G-940), but are for use TLE5010 sensor in digital mode through serial protocol - using individual sensor per axis, besides analog (HALL, "MagREZ" KMZ41, KM200..." sensors and pots.





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