PS/2 to Microsoft Serialmouse Adapter Converter

Discussion about old PC hardware.

PS/2 to Microsoft Serialmouse Adapter Converter

Postby matze79 » 2015-3-31 @ 15:15

Hi,

i want to show you a Project im working on and that i want to share with all Retro PC Users, its based on Simon Augustins Software.
This Device allows you to drive many Optical PS/2 Mouses on Serialports with Microsoft Serial Mouse Driver.
It drives me Nuts to use this Old Mechanical Mouses often with issues, bad moving speed, not ergonomic...
This is the Solution to give your trusty old 286/386/486 a really handy mouse.

Obsolete:


Its based on Simon Augustins Software, a Rewrite with some Major Bugfixes is in Progress to overcome Licensing Issues.
http://www.tempect.de/senil/ps2to232.html (Software from Simon Augustin)
The Schematic is retrieved from Sourcecode, wich contains the Pins used on the ATTiny2313 Device.


The Firmware is rewritten by Felmar Loyd, and works now in Logitech Mouse Mode.

If you can understand German: http://www.dosforum.de/viewtopic.php?f=1&t=3373

Some Pictures:

Prototyp 1:
prototyp1.jpg


PCB Prototyp 2:
prototyp2.jpg


Prototyp 2:
progress.jpg


Prototyp 3: Plugable
(3D Render is missing some Parts)
3d_2.jpg


Real Thing, Draws Power from Keyboard:
rs232-ps2-rev3.jpg


im currently in the progress of getting really nice PCBs from China at a pricing of 2,40$ Dollars.
i think i will find a way to give people outside of Germany a chance to build one their self.
We currently make a group buy at the Dosforum Community of Germany.
The last PCB Revision is in Factory, and will arrive within 4-8 Weeks.
And hopefully work out of the Box.

Video 1:
https://www.youtube.com/watch?v=xSLEmDo5Hbc

Hopefully my Spelling is not that wrong, because i`m not a native english Speaker.
Last edited by matze79 on 2017-11-24 @ 10:54, edited 7 times in total.
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Re: PS/2 to Microsoft Serialmouse Adapter Project

Postby matze79 » 2015-3-31 @ 15:16

Here is the Schematic and PCB Files in current Version.

All Files are GPL v2 Licensed.

Thanks!
Attachments
RS232 PS2 31-03-2015.rar
(361.51 KiB) Downloaded 184 times
Last edited by matze79 on 2015-5-06 @ 16:40, edited 1 time in total.
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby carlostex » 2015-3-31 @ 15:22

Nice project, would be great to find a plastic case just to encase the PCB and contents.

But again, nice work projects like these is what we need.
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby alexanrs » 2015-3-31 @ 15:47

One could go one step further than finding a case and substitute the DB9 connector for a pin header, and connect that to the internal COM1/2 header using a flat cable. Then you could put the board in a bracket or something. Anyway, very nice Project. Extremely useful for older PCs.
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby matze79 » 2015-3-31 @ 15:51

Thats already possible, just use the Pinheaders.
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby alexanrs » 2015-3-31 @ 15:54

matze79 wrote:Thats already possible, just use the Pinheaders.

My bad, didn't notice them. Well, flexibility is always nice :-)
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby AllUrBaseRBelong2Us » 2015-3-31 @ 18:38

This looks really cool. I actually just bought a brand new serial mouse on eBay because I wanted to minimize potential trouble that could stem from purchasing used mice. But it would be nice if I could wire up my ps/2 optical trackball for serial usage as well.
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby matze79 » 2015-5-05 @ 07:25

Some Progress:
pcb.jpg
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby keropi » 2015-5-05 @ 07:34

excellent work!
sent a pm :)
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby SquallStrife » 2015-5-05 @ 13:05

There was a previous effort to do something like this, but it sorta fizzled out: viewtopic.php?t=34494

This looks awesome.

Would you consider putting your PCB gerber files on OSHPark? They can ship all over the world very cheaply, you only need to order 3 at a time, and they give you a very high quality board with ENIG finishing and such.

Edit: Oh, just noticed the files were attached to an earlier post! Nice!

Edit2: I hope you don't mind, I went over your layout in Eagle and fixed up some of the funny trace angles. It looks like you finished doing your routing, and then moved some components slightly?

Edit3: I also moved around some of the component labels so they don't overlap.
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PS2_Serial.zip
(86.41 KiB) Downloaded 133 times
VogonsDrivers.com | Link | News Thread
[retro swim] | Link | Release Thread
Follow me on Twitter: https://twitter.com/RetroSwimAU
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby matze79 » 2015-5-06 @ 16:29

its possible that something isnt 100% perfect, as i just try to teach things myself :)
i'm currently writing with the original author of the avr source code to license it under gpl, so this will eventually become a Community Supported Project and the Firmware will get some improvment, its also possible to add a bootloader to the avr to allow updating over RS232 directly from Windows or DOS.
But some mouses seem to have Problems with the timeout issued by the bootloader.

Thanks for fixing the Issues within the Files.

i'm currently using dirtypcbs.com which also offers shipping and sending around the world, a minimum order would be 10 pieces Protopack for 25$.
If you like you can add the pcb to oshpark too.
i waiting for the parts to arrive to make a test build with the PCBs, and get eventually some final fixes.

Sorry for wrong grammars :)
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby ibm5155 » 2015-5-06 @ 18:17

I may sound dumb but, a usb mouse would work on it with an usb to ps2 adapter?
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby keropi » 2015-5-06 @ 18:56

^ only if the mouse in question works with both standards. The usb mouse need to support in hardware the PS2 mode, with the adapter it changes to that and works like a normal ps2 mouse. The adapter does nothing to new usb-only mice...
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby matze79 » 2015-5-06 @ 19:42

there is no reason to use a usb mouse at all, ps/2 is still on new mainboards, so you can expect that ps/2 mouses will still there in 2025.
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby Harekiet » 2015-5-07 @ 04:43

Very nice to see a board like this actually being made. Should at least make some non-ps2 machine users happy.
I had an idea once to just capture the mouse to a window on a machine next to my dos machine and then send the mouse actions from that pc to the dos machine over a serial cable. But I've just stopped using old machines that don't have a ps2 port :)
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby carlostex » 2015-5-07 @ 09:58

keropi wrote:^ only if the mouse in question works with both standards. The usb mouse need to support in hardware the PS2 mode, with the adapter it changes to that and works like a normal ps2 mouse. The adapter does nothing to new usb-only mice...


This is very correct! My main USB mouse does not talk PS/2 so it does not work on a PS/2 port, and i bought it in 2009.

However, PS/2 compatible mice should be relatively easy to find in the near future.
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby matze79 » 2015-5-11 @ 12:17

ps2_converter_final.jpg


Build works :), no Errors in the PCB Design!

Everything works! I´m Happy!
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby shock__ » 2015-5-11 @ 12:24

Why the jumper wires for the regulator and diode?
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby matze79 » 2015-5-11 @ 16:49

Not needed, i get 5V directly from my Keyboard Jack on the Laptop.
The Diode would drop some Voltage and Stop the Mouse from Working.
if the 7805 is in Place you need at least ~6.5V Input Power.
For simplicity i choose this solution, i startet working on a second Version with SMD Parts, running with a Switching Regulator.
But this will not allow Beginners to build the Circuit easily. (SMD Soldering needed)
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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Postby keropi » 2015-5-11 @ 17:35

ah excellent, smd version is a step forward :)
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