stefankrupop/amigaserialmouseadapter

Convert old Serial Mice to even older Amiga mouse

Amiga Serial Mouse Adapter

Converts data from Serial Mouse format to quadrature encoder outputs usabe e.g. for an Amiga. I used it to attach a Microsoft EasyBall trackball to my Amiga 500. The Amiga interface code is (partially) based on https://gist.github.com/Quantum-cross/892be82bd60753944225ff22bf564737.

Connections

I used an "Arduino Pro Micro" clone. My connections are as follows, but this should be easily adaptable to other Arduinos:

Serial

An MAX232 is used as a level shifter for the serial signals.

Arduino	MAX232
TXO	10
RXI	9
9	11
10	12

MAX323	DB9 (male)
7	3
8	2
13	8
14	7
15	5

Amiga

Arduino	DB9 (female)
A2	1
A1	2
A3	3
A0	4
14	6
VCC (+5V)	7
GND	8
15	9