Tor Arne Hustvedt

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NETHERLANDS, THE
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Oliver Renz (K.Zonias)

GERMANY
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AUSTRIA
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ugur tezer

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Components

	SOIC-18 PIC16F628A programmable IC	x 1
	0603 100nF capacitor	x 1
	USB-A1HSW6 ED2989-ND『』On Shore Technology Inc.	x 1
	DB9F L-com	x 1

Description

Micro Amiga mouse adaptor

I wanted to optimize the PCB for the usual Amiga mouse adapter. Using a SOIC-18 footprint IC I was able to make it so small that the limiting factor is the size of the USB connector.

I have ordered a set of these PCBs for myself and testet that they work before I made this project page.

Program the PIC before soldering to the PCB. I just hold the IC tightly onto an adaptor board for my TL866II Plus to program.

Bend the legs of the USB-A connector back and cut off 1 mm of the ends before installing on the board. The metal casing should have a slot to allow this without shorting. Also straighten the side lugs so that they go through the oval holes.

Requires a mouse with PS/2 protocol and USB connector. Alternatively the mouse wires can be soldered directly to the PCB and a small zip tie through the oval holes to secure the cable. Make sure you check the pinout to align with the pads first. Pin 7 of the DB9 is 5V and pin 8 is ground.

Here are 3D-printable cases for it when soldering the mouse sires directly to the PCB:

https://cults3d.com/en/3d-model/various/housing-for-micro-amiga-mouse-adapter

Credits:

Ultimate Amiga PS/2 Wheel Mouse Controller by Denis Sotchenko (https://web.archive.org/web/20191018184134/http://ps2m.sotchenko.ru/index.html)

USB schematic by Henryk Richter (http://bax.comlab.uni-rostock.de/en/hardware/ps2-amiga-maus/)

Micro circuit board design by Tor Arne Hustvedt

Code

http://bax.comlab.uni-rostock.de/en/hardware/ps2-amiga-maus/

Alternative link to hex file if the other doesn't work.

https://archive.org/download/amiga-ps-2-mouse-pic-16-f-628/AMIGA_PS2_MOUSE_PIC16F628.zip

Download BOM(Bill of materials)

Mar 12,2021

7,328 views

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Micro Amiga mouse adaptor

Maybe the smallest Amiga mouse adaptor out there.

7328

6.92 (3)

Published: Mar 12,2021

BOM(Bill of materials)

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File Last Updated: 2024/05/14 (GMT+8)

File update record

2024-05-1411:11:00

Parts List (BOM) is updated.

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Topic

DIY Electronics

Computers & USB

Programmable Logic Projects

usb mouse amiga ps/2 ps2

Comments(12)
Likes(23)

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Bary duke
Thank you for a great project. I made a two part cover.

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Jan 27,20241 Comments
Bary duke 2025-02-15 00:09:06Reply
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Federico Salis
Hi, sorry but no USB mouse works for me... or do I have to use a ps2 mouse with adapter?

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May 19,20241 Comments
Tor Arne Hustvedt 2024-06-04 01:42:34Reply
It must be a mouse that supports PS/2 mode, like it says above.
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Federico Salis
I created a shell for this adapter https://www.printables.com/model/892526-case-for-micro-usb-adapter-mouse-usb-db9-commodore

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May 26,20240 Comments
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Engineer
Ok work with mini mouse usb and ps2 mouse with adapter (Hp and hamlet)

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May 26,20240 Comments
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S M
Hi, Neat project, thank you for sharing. I have a couple of questions regarding the connectors. Is the DB-9 connector just a standard connector where the outer metal shell (that normally provides holes for the two side screws) has been removed? If I understand correctly, the USB-A connector is a through-hole connector where you bent the pins back. Is the slot in the metal casing that allows the pins to be bent back without shorting already there, or did you have to modify the connector to create that slot?

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Jun 30,20231 Comments
S M 2023-07-01 02:31:36Reply
PS. Forget the question about the USB-A connector, I see now that most connectors that have a back shield do already have a slot that allows you to bend the pins back. Still wondering about the DB-9 connector though.
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Richard Sherwood
I built one of these today, I could not get the linked HEX working with this adapter. (has it changed??) Anyhow, I used the hex from here and that worked perfectly. https://www.pcbway.com/project/shareproject/AMIGA_PS_2_MOUSE_CONVERTER__ADAPTER____PIC16F628_A__1.html

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Mar 03,20231 Comments
Tor Arne Hustvedt 2023-03-03 23:55:09Reply
Thanks. I added it to the page.
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Richard English
can you give me the precise link to the file that needs to be burned with the programmer, also the adapter you use for your programmer, once i get it working i will order big batch thanks

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Apr 16,20221 Comments
Tor Arne Hustvedt 2022-04-18 11:15:28Reply
Download the ps2m.tgz file here and unpack it. The file to burn is the one called ps2m.hex
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