On 11/2/2019 11:16 AM, David Gesswein via vcf-midatlantic wrote:
On Fri, Nov 01, 2019 at 01:25:33PM -0400, Win Heagy via vcf-midatlantic wrote:
I have a 3b1 that I think is mostly complete and working, but I'm missing the mouse. Is there anything unique about the mouse (other than its looks)? Can another mouse be made to work with it? I've seen the mouse listed on eBay but for $$$$.
I opened mine up and took pictures. http://www.pdp8online.com/misc/3b1_mouse.jpg http://www.pdp8online.com/misc/3b1_mouse2.jpg
Found this thread. Conclusion seems to be it talks TTL serial. https://groups.google.com/forum/#!topic/comp.sys.3b1/nawn1zyNWMg
You would likely need to make an adapter to convert some other mouse to the 3b1 protocol.
That SC87347P // R6-6805 // JG28509 chip is an MC6805 microcontroller; if someone has a mouse like that they could lend me for a month or two, I could extract the firmware from that chip, which will probably help a lot for making a device to use a modern mouse instead of the original one. Also, it is needed for proper 3B1 emulation, so its win-win. -- Jonathan Gevaryahu jgevaryahu@gmail.com jgevaryahu@hotmail.com