Hardware Construction¶

First of all, I do not offer readily assembled YAMI interfaces any more. If you need a YAMI interface, you have to assemble it yourself.

Luckily, it is not very complicated. The components are available in any good store for electronic components. You only need basic skills in electronics and soldering. Anyhow, a badly assembled YAMI may destroy itself, your mouse, your house, your neighborhood and (even worse) your Amiga computer. If you are not trained in reading circuit diagrams and use a soldering iron, you should get help from someone who does. If you completed the assembly, check every connection and every wire several times before you connect it to your Amiga.

You will find the circuit diagram and the list of components in the YAMI archive file.

The most difficult part certainly is to program the PIC processor. If you can get hands on a programmer hardware, you'll be lucky. But there are also construction manuals of cheap PIC programmers on the internet that will do as well.

By the way, YAMI was designed to be programmed after assembly. I used to program them with a self-made programmer that was connected to my Amiga's floppy drive port. I was also able to update the firmware that way, without disassembling the device. Maybe you'll find out how I did the trick.

Before you purchase the components and heat up your soldering iron, REMEMBER that YAMI requires a serial PC mouse, not those PS/2 or USB mice you get at computer stores nowadays.