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Ultimarc AimTrak Light Gun Module reviews

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romshark:
Had some time to think. The reason I couldn't set the trigger for T2 earlier was because I didn't have the gun pointed at the screen. When pointed offscreen, it sends nothing (I had set it to blank in the settings earlier.) So, now everything works fine (tested using Revolution X, a close cousin to Terminator 2 arcade game).
Still need to figure out the other buttons.
OK, this time I'm really out for the night. ;)

Cananas:

--- Quote from: Ginsu Victim on September 25, 2009, 08:48:45 pm ---I just got everything soldered in (P1-P5 is a ---smurfette---!), and I'm on my way to attach the sensor bar and set this baby up!

EDIT: Having software troubles. It won't SEND the changes to the gun. Hmmm......

--- End quote ---

To make effective the changes in P1 to P5, you must press the Send button, AND you must unplug and plug again the gun. This is  something that Andy did not comment, but I think it could normal for joystick in windows. EDIT: All is OK now with the 1.1 version of the firmware. No need to unplug/replug the gun.

Anyway, those buttons don't work for me. I tested all the wires and buttons connecting in parallel to the trigger and they work. So probably they are not properly enabled by Andy... EDIT: All is OK now with the 1.1 version of the firmware.

About distance and heights. It seems the gun much more sensitive to heigth variations that distance variations. In fact I considervery very distance sensitive: A little closer to the screen and you look how the cursor has and offset (outer to the center of the screen) to the left in left part of the screen and to the right in the right part. If you go farder slowly, you see there is a position (generally the initial position, sometimes a bit farder),when the gun and the cursor match. If you go again farder, you see now that the offset is inner, to the right in the part left of the screen and to the left in the right part of the screen. EDIT: I don't see diferences between firmwares.

One think help to recalibrate. The calibration mode works with the mame crosshair. But it must be enabled.

AndyWarne:
The P1-P5 connectors are enabled in firmware version 1.1.

Just to clear up one issue, the module does fully correct for screen distance changes. Version 1.1 made a very small adjustment to a scale factor which improves this capability even further.
One thing to bear in mind when analyzing accuracy is that the gun "learns" some of the large distance changes, so that large and sudden changes in distance or tilt may not be corrected until the gun has been used for a few seconds in a real gaming situation. Some of the corrections are only applied when the gun is pointed off-screen as would happen in a real situation very often. This does not apply to changes which are required during normal X-Y motion, which are of course made immediately.
This "learning" was noticed by Romshark when he caught-out the gun after moving a large distance closer or further from the screen and before it had learned the new position.

Feel free to check and post findings here on the effects of distance changes etc but I would request you give it a fair crack by moving the gun for a couple of seconds including off-screen after changing distance from the screen by a large amount.

AndyWarne:

--- Quote from: RandyT on September 25, 2009, 10:46:52 pm --- The software may be able to measure the length of the LED pattern to see if it gets smaller, but at those small variations in distance, it would take a very high resolution sensor to be able to do this well (or at all.) 



--- End quote ---

It does do that and the sensor is a very high resolution....

Cananas:

--- Quote from: AndyWarne on September 26, 2009, 04:58:18 am ---I will take a look at the P1-P5 connector issues. I did not really expect people to use these in the DIY mode as there is no connector fitted but no matter.

--- End quote ---

Don't know if it could be useful:

I have aux button mapped to GamePad (GP) Button1. If I go to control panel -> Joystick (or whatever it is), I see the device and can test that the GP Button1 works OK.

With this, if I enable with the software a P? button mapped to a GP Button (no matter if it is one or five), when I go to test again the GP button1 in Control Panel->blah, blah, (after unplug/replug the gun) if I press the Aux button, it shows OK, but the rest of buttons (only those associated to the P? buttons) are shown always like pressed.

The same happens in MAME. No matter to what is connected to those buttons (p1..P5). They are always ON when enabled.

EDIT: Fixed in firmware v1.1.

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