To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.robotics.handyboardOpen lugnet.robotics.handyboard in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Robotics / Handy Board / *589 (-10)
  IC identification
 
I have several IC's that I suspect may be opto-isolators but have been unable to locate any pin-outs/data sheets. I wonder if anyone can help me identify them? They are 8-pin HP IC's with the followin on them: top row, the # 4371 and bottom row, the (...) (28 years ago, 6-Jul-96, to lugnet.robotics.handyboard)
 
  Re: torque requirements of 200lb robot
 
(...) In my freshman physics class (back in the stone age :-) we went over the notion of torque and how gears "amplify" torque. And what we showed was that you could move an arbitrarily heavy object with any motor your wanted if you had enough (...) (28 years ago, 6-Jul-96, to lugnet.robotics.handyboard)
 
  (no subject)
 
(...) Uh, Wow.. My bot is about 30 - 40 lbs so far.. I have the gear ratios set for a top speed just over walking speed (if all goes as planned). While I cannot verify anything until I get the bugs worked out, I would estimate that the gearing (...) (28 years ago, 6-Jul-96, to lugnet.robotics.handyboard)
 
  Re:
 
System User wrote: snip (...) have? I want to move a 200lb platform on 8" wheels. Do you think they could do it? My partner (who also reads this list) thinks I'm nuts to suggest buying two new drills and cutting them into pieces. My resoning is that (...) (28 years ago, 5-Jul-96, to lugnet.robotics.handyboard)
 
  (no subject)
 
Oh well, I THOUGHT I was done with my H-Bridge.. It seems to be running a bit hot. I had originally tested the motors with a bench supply, and the current never exceeded five amps, so I thought the TIP 120/125 circuit was "just right". It now seems (...) (28 years ago, 5-Jul-96, to lugnet.robotics.handyboard)
 
  Copy rights
 
Is there a law against modifying the IC source code for my own purposes? Benny (28 years ago, 5-Jul-96, to lugnet.robotics.handyboard)
 
  www.newtonlabs.com temporarily down; please use alternate address
 
The DNS for www.newtonlabs.com is temporarily broken; please use (URL) in the meantime. Sorry for the inconvenience. -- Randy (28 years ago, 4-Jul-96, to lugnet.robotics.handyboard)
 
  Re: Handyboard LCD
 
(...) Go to the IC Source page, linked off the software resources page. This has links to the source code. YOu need the pcocde for the HB, the special as11 assembler, and a shell script facility for the as11_ic program. these are all pthere. look at (...) (28 years ago, 4-Jul-96, to lugnet.robotics.handyboard)
 
  Re: Handyboard LCD
 
(...) Where I can get the pcode sources? I downloaded pcode_pc.zip from Cherupaka, but the .asm file included talks about "Rough Warrior" not handy board... also there are a number of defines to supply... Is that the right source? and if it is what (...) (28 years ago, 4-Jul-96, to lugnet.robotics.handyboard)
 
  VBX
 
Anybody tried to write a visual basic code for the handyboardd. Hachemi (28 years ago, 4-Jul-96, to lugnet.robotics.handyboard)


Next Page:  5 more | 10 more | 20 more

Redisplay Messages:  All | Compact

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR