>
> --- In oopic@yahoogroups.com, "Kyunghwan Choi" <kh8911@> wrote:
> >
> > Hello,
> >
> > I've sent this e-mail to roguerobotics.com but I guess I can post it
> > here as well.
>
> I'm looking at the schematic for the OOBoard and it doesn't show a
> SIMMBus of any kind.
Maybe it is on another sheet that is not shown.
The picture of the board and the write-up do indicate that 4 SIMM
receptacles are on the board.
I'm not sure that these are very useful in that Dontronics is about
the only company building peripheral boards in that format other than
the Remote I/O expander from Rogue. And there are other ways to do that!
There are a number of other controller formats for the OOPic:
The OOBOT40 from Oricom Technologies
http://www.oricomtech.com/prod-con.htm
The Mark III OOPic controller from www.junun.org
Both of these have real RS232 drivers which the following do not.
The OOPic II http://www.acroname.com/robotics/parts/R128-OOPIC-II.html
which needs an external RS232 level shifter and the on-board voltage
regulator is just large enough for the chip. Peripherals are better
served by another regulator or power supply.
The OOPic R http://www.acroname.com/robotics/parts/R180-OOPIC-R.html
which has a separate voltage regulator for peripherals but does not
have a real RS232 level shifter. It will work with PCs but not
necessarily every device you might want to connect.
Personally, I use the OOPic II because nothing is connected to gadgets
on the board. I can do whatever I want with the IOLines. One
example: the upper 3 A/D inputs of the R board are connected to LEDs
and resistors. This limits the A/D channels to 5 unless the board is
hacked.
I also use the Mark III OOPic controller. Junun has a couple of add
on boards (sensor and prototype) that can be handy. I like the
stacking format.
Richard
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