On Sun, Nov 19, 2017 at 6:55 PM, smf <smf@null.net> wrote: > Mechanical mice have a ball and two spinners with electrical contacts that > pass by counters. These fell out of favour very early because the contacts > bend. > > Optomechnical mice have a ball and two spinners with slots, on one side is > an led and the other side a receiver. Amiga,Atari ST,IBM Bus Mice are all > pretty much the same, the signals from the receivers get sent over four > wires (quadature encoding). Serial,PS/2,USB,1351 mice have a chip which > interprets the quadature encoding and convert them to an alternative format. > You should be able to add a chip to the former, or remove the chip from the > later. > > Optical mice shine an led on the surface and then watch the surface move. > They weren't available in 1980 In 1982 for sure, SUN optical mouse for example (I have a few of them). The "trick" is that they required a special metal pad with a special pattern (cross lines) to function. Frank IZ8DWF > > On 19/11/2017 17:42, Terry Raymond wrote: >> >> Hi, >> >> Would the earlier 1980 optical mice be a lot less complex as today's >> optical mice. >> In my Googling optical mice I did find a 1980 optical that was used but >> it's a chip that controls this could this somehow work with the MOS 5717 >> to >> use the same >> Joystick and proportional modes, as far as integrate the optical to the >> 1351 circuit >> somehow? >> >> Is this even possible seems the optical now is far more complex than in >> 1980! >> >> Terry Raymond >> > > Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2017-11-19 18:02:57
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