This page created 03-04-2002 16:04:18

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Kilian's Robot Shop of Horrors - 03/01/2001

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This week we are trying to get Alan's Trippy motor driver board finished to send it out to a board house.


Getting up to speed

rsoh01.jpg
Ron admires our handy work
from previous weeks.
rsoh02.jpg
Peter test drives the Unix
machine.


The Trippy motor driver project

rsoh03.jpg
Alan checks a mock-up to see
if the connectors will fit.
rsoh11.jpg
This is what the autorouter
will do.
rsoh12.jpg
Jeff hand routed this board
since last week.
rsoh13.jpg
Here is another attempt with
different placement and
smaller traces.
rsoh14.jpg
The final board. (There were
a couple more changes after
double checking the
schematic.)
rsoh07.jpg
Test fitting the chips on the
printed top layer.
rsoh08.jpg
The board next to Alan's
MiniRobo Mind CPU board. We
made the boards stackable.


Ron's -What If?- question

rsoh04.jpg
Ron wanted to know how many
time slices he needs to read
n tags. So everyone started
calculating.
rsoh05.jpg
Here are Ron's notes.
rsoh06.jpg
Of course Alan did it the old
fashioned way. He used a
computer.


Jeff takes his Acer Warplink card apart

This actually happened a couple days after RSOH. It was prompted by Rob T. wanting to know if he could connect a wireless network to his microcontroller. Brynn said a system he worked with had an 8-bit interface and a serial interface and a PCMCIA interface. Then Brian said a system they used had something similar. It looks like this Acer card is using an 8-bit interface to talk to the ISA bus. So maybe it would work.

rsoh16.jpg
The ISA adapter card and the
wireless network card module.
rsoh09.jpg
Jeff wnated to know if he
could connect an external
antenna.
rsoh10.jpg
Looks like there is only two
connections. So it will
probably work.
rsoh17.jpg
Just a 44-pin custom chip,
a connector, a transistor
and a couple resistors
and capacitors.
rsoh18.jpg
The module plugs into the ISA
card with a single connector.
rsoh15.jpg
Here is the connector pin-out.


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