| Main > Main Forum |
| I-PAC shift function vs. KeyWiz Shazaam Function for Howard C. |
| << < (15/17) > >> |
| eightbit:
--- Quote from: Grasshopper on February 24, 2003, 03:29:09 pm ---Going back to the keyboard pass-through issue, why don't you adopt the approach taken by Stephan Hans? His keyboard splitter can be built for a few dollars and as far as I am aware it does not affect the performance of the keyboards attached to it. If I bought the cheapest KeyWiz, could I then add keyboard pass-through functionality by soldering my own DIN socket to the circuit board? --- End quote --- I can't speak to the payment or shipping issues. I can tell you why the keywiz didn't use the keyboard pass through. It takes inputs and can cause lower performance. So no a pass through couldn't easily be added. A USB keyboard can be had for under $10 shipped to you in the states. I don't know what you can get them for in the UK. Even DOS under most Bios's can use a USB keyboard. I've seen ps2 to USB adapters for under $4 and you could adapt any keyboard to usb. There are also performance issues with USB in general. Andy has claimed that he has gotten around the normal USB 6 key simultanious limit but he hasn't claimed to my knowledge how many he has gotten to work. Whats this keyboard splitter by Stephan that you speak of? I'm interested in it. |
| _Iz-:
Is it not possible to connect 2 keyboards in parallel to one PS/2 port? Don't they make splitters that adapt 2 female to 1 male pin for pin with no actual "electronics"? Basically a simple "Y"? |
| eightbit:
--- Quote from: _Iz- on February 24, 2003, 07:30:31 pm ---Is it not possible to connect 2 keyboards in parallel to one PS/2 port? Don't they make splitters that adapt 2 female to 1 male pin for pin with no actual "electronics"? Basically a simple "Y"? --- End quote --- Its been asked before and the answer was no. Those splitters are designed for laptops to split a keyboard and a mouse. The PS/2 port on a laptop is wired to work this way. I have a couple of those splitters for my laptops, I'll give it a test when I get a chance. |
| Grasshopper:
--- Quote from: eightbit on February 24, 2003, 06:54:37 pm --- --- Quote from: Grasshopper on February 24, 2003, 03:29:09 pm ---Going back to the keyboard pass-through issue, why don't you adopt the approach taken by Stephan Hans? His keyboard splitter can be built for a few dollars and as far as I am aware it does not affect the performance of the keyboards attached to it. If I bought the cheapest KeyWiz, could I then add keyboard pass-through functionality by soldering my own DIN socket to the circuit board? --- End quote --- I can't speak to the payment or shipping issues. I can tell you why the keywiz didn't use the keyboard pass through. It takes inputs and can cause lower performance. So no a pass through couldn't easily be added. A USB keyboard can be had for under $10 shipped to you in the states. I don't know what you can get them for in the UK. Even DOS under most Bios's can use a USB keyboard. I've seen ps2 to USB adapters for under $4 and you could adapt any keyboard to usb. There are also performance issues with USB in general. Andy has claimed that he has gotten around the normal USB 6 key simultanious limit but he hasn't claimed to my knowledge how many he has gotten to work. Whats this keyboard splitter by Stephan that you speak of? I'm interested in it. --- End quote --- USB keyboards can be bought quite cheaply in the UK however I've never seen a PS/2 to USB adaptor for the price you quoted. A USB keyboard is a good solution if you're building a complete cabinet. However if you're just building a control panel and you already own a PS/2 keyboard which you like using then you don't necessarily want to clutter up your desk with a second keyboard just for using with the control panel. Stephan Hans circuit can be found here: http://home.t-online.de/home/stephan.hans/tricks.htm#DUAL-KEYBOARD%20Circuit I suppose there is nothing to stop you using his circuit with a KeyWiz. I vaguely remember Andy saying that the Ipac could handle up to 15 simultaneous keypresses in USB mode. |
| rampy:
Hey grasshopper, my undersatnding, after asking a simliar question to randyT a while ago was: You could solder on your own DIN if you bought the cheapest key wiz... but you'd also need to solder on a switch as it still wouldn't act like a passthru. I'm sure if one was doing a desktop controller where they'd switch alot (from normal keyboard to arcade encoding) a simple switching circuit could be built to "sense" which keyboard was active at a given time (just an idea I had when wrapping my mind around your comments ->it might not work, or have adverse effects *shrug*) rampy EDIT: doh -> just looked at stephens circuit and, yeah that's what I was thinking along the lines of, although, I probably wouldn't of come up with a working solution on my own =P |
| Navigation |
| Message Index |
| Next page |
| Previous page |