| Author | Message | ||
     finless Rating: N/A |
All, I have a pair of Wicked3d (H3D) wireless glasses. However since they don't seem to be supported with the Nvidia drivers, I went ahead and also bought the WIRED Revelator glasses (the ones with the Y cable). My though was I would be able to also use the Wicked3d Glasses by plugging in the transmitter to the revelator DIN3 Y cable. Well it did not work. I took the Wicked3D transimtter apart to check it out. Pretty darn simple! A transistor and a few resistors. Thats it! I checked the wiring from the DIN and it does match the DIN3 standard for the revelators. It matches the proper +5, gnd, and stereo wires. There is a silk screen on the Wicked3D transmitter and it shows the +5, Gnd, and IR wires. So it seem like it should work? Looking at pictures of the ELSA wireless glasses, the glasses look the same as the Wicked3D glasses and I have found information that says the IR protocol to the glasses is the same (on this web page). So the question is: 1) Does anyone know what is in the Revelator IR transmitter? 2) Do I need to make some kind of circuit to do this? Anyone know? I can send pictures of the transmitter if anyone can help just Email me Thanks, Bob | ||
| Andreas Schulz Rating: N/A |
Well, the IR signal that comes out of the ELSA and Wicked3D emitters in fact _is_ the same (or at least similar enough to work for both). The problem is that the signal on the 3rd DIN3 pin is different for both - for the ELSA glasses, it's the VESA L/R control signal (hi=left, lo=right, or vice versa), coming from the infamous VGA DC pin12. The ELSA IR emitter contains a tiny microcontroller that converts this signal into the pulse-coded signal sent to the glasses via the IR link. For Wicked3d, the controller sits in the VGA dongle, evaluating the VGA Sync and some control codes in the video signal and sending the IR pulse code to its DIN3 socket, so the emitter contains just the IR LEDS (and some simple amplifier) and you have the pulse code signal on the 3rd DIN3 pin. A circuit to bypass the Wicked3D controller and simulate the ELSA controller has been published on the web, there is a link to it somewhere here in this forum's messages... | ||
| Finless Rating: N/A |
Andreas, Thanks this makes sense. BTW you web page has been invaluable for me! While I was fooling around I took the little black box on the revelator cord apart. My thought was MAYBE I could use the output of this to drive the Wicked3D IR. Well after taking it apart, it is pretty simple too. 2 basic chips and a few other components. There are 4 wires to the glasses. It looks like power, ground, left signal, and right signal. The chips look like they split the DIN3 signal into 2 signals. I am going to download spec sheets on them today and see what they are doing. However I can see that this MAY not work to drive the IR unit. Andreas, I see you have the protocol for these glasses listed on your web site. Is it that simple? There is no starting pulse train to turn on the glasses, etc? Also you show a left and right pulse train with the missing bits. I am a little confused by that. The IR unit has two LEDs but they are connected together thus sending the same pulse train. So the frames are serial with the 7 pulses in each frame yes? What is the frame sequence? Frame 1 left eye, frame 2 right eye, etc? Do they just alternate each frame? Thanks, Bob If the code is that simple, I can try to make somthing using a PIC to make my own IR unit. Possible? Bob | ||
| Andreas Schulz Rating: N/A |
you're welcome.. 1. If one of the chips is another 12C508, I'm afraid that the spec sheets won't help much, since this would be a multi-purpose microcontroller, specially programmed by ELSA. The other one would be some circuit to increase the voltage for driving the LCD panels (though ELSA might have found a simpler solution with standard CMOS gates). The 4 wires to the glasses would be for front- and backside for left and right LCD panel, as in the IR version; no IR signal there. 2. The glasses (at least the IR glasses, but I guess the wired as well) are (de-)activated just by the (lack of) presence of the control signal, with a sufficient timeout. As you guessed, the pulse codes alternate for each frame (..-L-R-L-R-..). The two LEDs are just for better coverage, they are connected in series to the same signal. 3. If ELSA could put it into a PIC, and you know how to program those bugs, it should be quite straightforward. Btw.: See http://www.geocities.com/pop_eco/w3dels_e.htm for the modded Wicked3D controller. See also http://www.stereo3d.com/discus/messages/22/1608.html?1035827119 for using the Eye3D activator. P.S.: Just of curiosity, could you upload or mail a scan of the wired controller's circuit ? |
