"Faking" a ps/2 mouse. - Page 2

Chris31 · 04-10-2005, 10:48 AM

Quote: Originally Posted by Scouse Monkey

yup, if you have something useful to say!

(looks like you just did)

ARE YOU FOLLOWING ME NOW???

Oh no, not at all.

mushin · 04-10-2005, 01:51 PM

Quote: Originally Posted by Scouse Monkey

lI am sure there is probably a way to just connect a few pins with a resistor load or summit.

I don't think that's going to work... You can see the mouse initialization routine about 2/3 way down on this page , but looks like at the very least you'll need to transmit 0xAA and 0x00 (for self-test passed and mouse ID) on the data line (which in turn requires the clock line). A PIC could easily do it.

Scouse Monkey · 04-10-2005, 01:59 PM

Quote: Originally Posted by mushin

I don't think that's going to work... You can see the mouse initialization routine about 2/3 way down on this page , but looks like at the very least you'll need to transmit 0xAA and 0x00 (for self-test passed and mouse ID) on the data line (which in turn requires the clock line). A PIC could easily do it.

hacking apart an old mouse and aking the crap you don't need out sounds easier. How do KVMs stop the PC thinking the device has been unplugged? they must do it somehow.

egeekial · 04-10-2005, 02:31 PM

If you don't want to pay for Girder, you can always use WinLIRC. I've never used it, but I am using Lirc for Linux, and it works great.

mushin · 04-10-2005, 02:50 PM

Quote: Originally Posted by Scouse Monkey

hacking apart an old mouse and aking the crap you don't need out sounds easier. How do KVMs stop the PC thinking the device has been unplugged? they must do it somehow.

I agree, just using an old mouse is easier. You can probably even hack away a good deal of the PCB if space is really important.

Do KVMs keep the PC thinking it has a KB/mouse? At least for the the manual A/B switches, I thought they just physically change the connection. I suppose it could connect the 'unattached' PCs to an internal chip that acts like a kb/mouse.

Scouse Monkey · 04-10-2005, 02:53 PM

Mushin, yeah i assume they do toherwise when you boot a PC without switching it over you will get that damn "No PS2 mouse found, do you wish to attach one now..." thing.

bodaciousllama · 04-10-2005, 08:17 PM

Quote: Originally Posted by Chris31

Stick pointer as found in laptops?

you know how awesome that would be if you like molded one of those buggers into the dash, or the steering wheel or something, then you wouldnt have to worry about mice

hcker2000 · 04-10-2005, 10:40 PM

Na the stick I'm refering to is the one found on any playstation 1 or 2 controler. I think when I can afford to buy a screen I will just hack apart an old mouse and add it to the mass of wires under the dash. I'm realy even reconsidering the mini keyboard I got as it dosnt have any ctr, del, tab, esc, or alt buttons :/

xdjxklusivex · 04-10-2005, 11:29 PM

use a tiny *** mouse and jam it somewhere thas what i did with my keyboard i just stick it under the seat... my pc wont boot up witout a keyboard so yeah

da_kooz · 04-14-2005, 03:44 PM

I have to agree with the hacking apart of an old mouse, it would be quite small and won't really detract from the computing power like adding more progs would....and you could just run it back into the case as it'll be very small after a little hacking

KyleYankan · 04-14-2005, 04:16 PM

Why not find an old broken wireless mouse on ebay- wher ethe mouse is broke but the dongle still works?

On my mouse - the batteries died - but the donlge is still plugged in and it reckognizes it still.

shotgunefx · 04-14-2005, 04:18 PM

Quote: Originally Posted by hcker2000

Basicly I need to find a way to make the pc think that there is a ps/2 mouse pluged in this way it will load the mouse pointer and then I can use my game pad as a mouse. Any one got any clue how to make it look like a mouse is connected to the ps/2?

Ever think of using a PIC to drive whatever pad your using? I think when the mouse get's power, it's supposed to send a Ctrl-M character IIRC.

hcker2000 · 04-14-2005, 09:19 PM

I'v never thought about doing the pic thing for my controler as it uses a usb adaptor and I'm sure it would be hard to get the fetures of the mouse working good in a pic.

Now a pic to emulate the mouse would be fine just has to be very small, very cheap, and I would need a very cheap way to program it.

shotgunefx · 04-14-2005, 09:31 PM

Quote: Originally Posted by hcker2000

I'v never thought about doing the pic thing for my controler as it uses a usb adaptor and I'm sure it would be hard to get the fetures of the mouse working good in a pic.

Now a pic to emulate the mouse would be fine just has to be very small, very cheap, and I would need a very cheap way to program it.

Pics run around 2-4 dollars USD, a decent programmer can be had for $10 to $15. You can get an Olimex development board for under 20 bucks. This is basically a complete board with power/timing and Max232 for communicating with a PC. If you get the PIC16F628A or any of the ones with ADC, you can easily measure a joystick or other analog device. Plus you could use it do other things down the road.

hcker2000 · 04-15-2005, 01:13 AM

How would you go about mesuring a usb joy stick with a pic?