DPRG mailing list archives: DPRG: More Goodies from Tech-Tools

Fri Feb 14 17:55:09 CST 1997

Dear DPRG friends:

I spoke with James Vroman of Tech-Tools yesterday and he informed me
that after negotiating with his boss for a while, he managed to
score some more stuff for the DPRG!

The products that Tech-Tools is donating was actually a prototype run
of an 8051 board that had one simple mistake, but ruined the lot.  The
mistake seems to be a simple swapping of the 7805 chip legs so that the
center ground pin was moved to the outside instead of being in the center.
All ya have to be willing to do is swap the legs of the 7805, and you've
got a nice 8051 board!  All of you electronics gurus probably already know
just how _you_ would do it right?

Tech-Tools is donating 10 bare boards to the DPRG!  As best as I can
remember from what James told me, these boards have a place for a 7805 (pins
accidentally swapped), a max232, rom, ram, and a gal.  The gal is used for
addressing, but it can be left out and addressing pins wired manually for a 
default configuration. You'll need to get the gal and program it if you wanna 
overlay code and ram space.  

James mentioned that they have about 30 of the bad boards, and if anyone 
wants to buy one, he'll sell one for $10 bucks (bare board).

We need to figure out if we wanna give them away at the next meeting,
or as prizes for the contest.  I thought that if we do give them away, then
maybe some of the boards might be able to be used in a robot to be entered
in the contest in May.  Any thoughts?

James mentioned that he will bring the boards to the next meeting.

Again, great going to James and Tech-Tools for the donations!  We should
make good use of them as best we can.
-------------------------------------------------------------------------
Jim Brown       jbrown at why.net  or  jbrown at spdmail.spd.dsccc.com 
                http://users.why.net/jbrown
                http://www.dprg.org (next meeting is March 22nd) Bring robots!
Rom 3:23,24     http://users.why.net/jbrown/pcb.htm