Alt-BEAM Archive
Message #07186
To: beam@sgiblab.sgi.com
From: Mark Dalton mwd@cray.com
Date: Sat, 30 Oct 1999 15:36:44 -0500 (CDT)
Subject: [alt-beam] Re: Leg design
>
> How'bout those BEAM bots(the robot part). I find that they are technically
> challenging to get the leg structure right(you get the idea).
>
> Robert
>
The leg design, you can look at insects for inspiration.
Andrew Miller wrote up some good information on how to build a walker
in general, but also a section on the leg mechanics..
http://www.xs4all.nl/~vsim/amiller/microcore.html
- See Leg Mechanics
As Sean/Wilf Rigter also mentioned, the circuit also needs to be tuned for the
specific legs/motor you are using. He mentioned some of the circuit dynamics
in "RE: Bicores...some technical questions".
http://www.egroups.com/group/alt-beam/7157.html?
Mark
--
Mark Dalton CH3-S-CH2 H H O H
Cray Research/SGI | | | \ |
Eagan, MN 55121 CH2-C-COO //\ ---C--CH2-C-COO C-CH2-C-COO
mwd@sgi.com | | || || | // |
NH3 \\/ \ / CH NH3 O NH3
NH
7187 Sat, 30 Oct 1999 15:50:03 -0700 [alt-beam] [OT] Keypad IC added to IC lineup "Todd Peterson" Greetings all,
Just wanted to make a quick announcement to the list that our line of
embedded circuit building block IC's has been added to with our EDE1144
Keypad Encloder IC. Datasheet is at http://www.elabinc.com/chips.htm
In addition, we're currently developing an octal 7-segment LED driver IC
with count functionality. Any input on desired functionality would be
welcomed.
The EDE1144 IC press release is posted below.
Thanks!
Todd Peterson
E-Lab Digital Engineering, Inc.
(816) 257-9954 FAX: (816) 257-9945
http://www.elabinc.com
--New Semiconductor Announcement--
4x4 Keypad Encoder IC
We're pleased to announce an addition to our EDExx Family of integrated
circuits. The EDE1144 4x4 Keypad Encoder IC is designed to interface a 4x4
(or smaller) multiplexed keypad to a host microcontroller. Outputs are
serial (2400/9600 Baud) or parallel.
The EDE1144 features key debouncing and key auto-repeat when held. It is
electrically (EMI) quiet, scanning the keypad only once when a keypress is
detected, rather than a continual scan. A beeper drive signal provides
tactile feedback to the operator upon keypress.
Available in 18 pin DIP or SOIC packages, the EDE1144 sells for $7 US
Dollars quantity 1, and $3.25 1K pricing. A datasheet and full pricing
information is available at http://www.elabinc.com/chips.htm
E-Lab Digital Engineering, Inc.
http://www.elabinc.com
Note: Serious Distributor Inquiries for the EDExx Family of IC's are
welcomed.
Home