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| 49-ways, first look. |
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| paigeoliver:
The 49 way is optical, it has 3 switches in each direction instead of one. A regular joystick has 9 possible positions, a 49-way has 49 of them. |
| fredster:
What's the difference between 49 way joysticks and "rotary" joy sticks? I always thought an 8 way joy sitck had 8 positions. 0/dead center is a position? How does 3 X 0 + 8 X 3 = 49? Can Rotary Joysticks be used on a mame machine with some kind of interface like this SJC interface? What is a SJC interface? |
| paigeoliver:
Um, rotary joysticks are 8-way joysticks that spin in a circle as well. Totallly different. The 49-ways have 3 switches in each direction, making for 7 possible positions per axis. 7x7=49. Optical 8-ways were often refered to as 9-ways because they have 9 distinct postions (as do regular 8-way sticks). SJC only hooks up a single 49way and 10 buttons. You can use more than one of them though, and you can order them with different USB ids, so they won't swap position on bootup. The SJC is the same basic PCB as the AKI, which is a hookup for normal analog arcade stuff. Forgot how much stuff those boards support but it is a lot. |
| u_rebelscum:
--- Quote from: paigeoliver on August 18, 2004, 12:22:29 am ---The 49-ways have 3 switches in each direction, making for 7 possible positions per axis. 7x7=49. --- End quote --- Not quite true, but close. (Hmm, re-reading maybe just not complete info.) I little more detailed info: Three optical switches per axis. Centered has all three sensors blocked. As the stick is moved away from center along an axis, the sensors get uncovered one by one. With three sensors, there are three levels per direction (two directions per axis). So 3 + 3 + 1 = 7. Two axes means 7 * 7 = 49. (Yes full left and full right both have all sensors uncovered. The joystick covers this by having another output pin thats on if the stick is to one side, off if on the other.) And 8-way + center = 9 positions, so 8-way doesn't count center, but 49-way does. Go figure. [shrug] |
| Kremmit:
Edit: I typed this post earlier this evening, but was pulled away before I posted it. Several replies have come in since then that covered much of what was it it; that info was removed. --- Quote ---Posted by: whammoed I am not familiar with a 49 way stick. Does it have the ability to regiser 49 different directions? How does it do it? With switches, optics? something else? --- End quote --- If you're having trouble visualizing, this picture may help. (note: ignore the gray shading) You also may be wondering why use a 49 way? No, it doesn't go in 49 different directions, the difference is that it senses how hard you are pushing in addition to which direction you are pushing. Only push the stick a little bit, and you only trip the sensors for the 1st ring of boxes in the pic below. Push a little further, and you move into the 2nd ring. Push the stick all the way and you hit the outside ring of boxes. Games that supported these sticks would vary the speed of your game character based on this, giving you speed control along with directional control. |
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