 | | Strange HB problems
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Over the past two days I have had two problems with my HB that I can't explain. Maybe you you can help. 1. I wrote a simple program to test out my motors that consists of the motor, sleep, and beep commands. Once in a while I get an error back while (...) (27 years ago, 19-May-97, to lugnet.robotics.handyboard)
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| | (no subject)
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Another note on soldering.. Heat control is VERY important.. Not so much being able to adjust the heat, as having a temperature-controlled iron. The "cheaper" irons get hotter or colder with the load (speed of soldering) as well as the room (...) (27 years ago, 19-May-97, to lugnet.robotics.handyboard)
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| | Re: Soldering (fwd)
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Often novices miss the single most fundamental point about soldering: you don't use the iron to melt the solder (99% of the time) -- you heat the component leads and let them melt the solder. To initially transfer heat effectively to the leads, a (...) (27 years ago, 18-May-97, to lugnet.robotics.handyboard)
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| | Re: Soldering
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(...) experience >at all with soldering. (...) become more >adept at this sort of stuff. And what type of solder should I use? Shane is right, you'll find using very thin solder works much better. Along with a fine tip, you'll want to use a low (...) (27 years ago, 18-May-97, to lugnet.robotics.handyboard)
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| | Soldering/ Second processor
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->Hi, I'm planning to purchase the handyboard as a kit from Digital Mirco System, since I'm a bit tight with money. However, I'm a bit hesitant (...) soldering. The trick is to use THIN 60/40 solder with flux core. Around 0.71 mm thickness is good. (...) (27 years ago, 17-May-97, to lugnet.robotics.handyboard)
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| | Re: Vector 2x giving me lots of trouble...
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Well, I seemed to have narrowed down the problem I was having with the Vector2x compass. It was functioning fine... All I had to do was write clean code that called comp_disable(1) at the end. When my code wasn't doing that, the compass IRQ routines (...) (27 years ago, 17-May-97, to lugnet.robotics.handyboard)
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| | '97 Intel ISEF
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This last week was the 1997 Intel International Science and Engineering Fair (ISEF), held in Louisville, Kentucky. While I don't have a list of winners/losers, I do have some things to say about it. There were five robots in the engineering (...) (27 years ago, 17-May-97, to lugnet.robotics.handyboard)
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| | (no subject)
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Hi, I'm planning to purchase the handyboard as a kit from Digital Mirco System, since I'm a bit tight with money. However, I'm a bit hesitant about assembling the kit because I have no experience at all with soldering. Can anyone recommend something (...) (27 years ago, 17-May-97, to lugnet.robotics.handyboard)
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| | Re: Polaroid software driver
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---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (27 years ago, 16-May-97, to lugnet.robotics.handyboard)
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| | Vector 2x giving me lots of trouble...
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Hi all, I am having lots of trouble with the vector 2x compass. Sometimes it seems to work fine. Other times it just ouputs zeros (like someone else was saying...). I checked all the physical wiring, and that seems to be fine. The strange thing is (...) (27 years ago, 16-May-97, to lugnet.robotics.handyboard)
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| | Polaroid 6500 sonar and HB...
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Can anyone tell me where I might find instructions for connecting the Polaroid 6500 sonar with the Handyboard? Thanks for any help... -=Fred Cass=- (27 years ago, 16-May-97, to lugnet.robotics.handyboard)
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| | Re: Vector2X compass accuracy?
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The data sheet for the Vector 2x is located at: (URL) have used their TCM2 electronic compass module. I was very please with it's performance and reliability. Vinny Gracchi ---...--- (...) (27 years ago, 15-May-97, to lugnet.robotics.handyboard)
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| | Re: Reading floating point numbers
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Sure Rich, why don't we share your code now. If you want to zip up your files and mail them to me, i'll put them on the HB web site. -Fred (...) c (...) " (...) (27 years ago, 15-May-97, to lugnet.robotics.handyboard)
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| | Re: Reading floating point numbers
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Baggerman, Clinton D. spake unto the ether: (...) Clint, I already have the converse of this problem (i.e., printing floats (and ints) to a remote console via serial_putchar()) solved. I'm currently working with Fred Martin to make these routines (...) (27 years ago, 15-May-97, to lugnet.robotics.handyboard)
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| | Reading floating point numbers
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My problem is that I need to read in a floating point number through the serial port. I tried using the serial_getchar function to read in the number as an int, then convert it to a float, but that was unsuccessful. I also tried altering the (...) (27 years ago, 15-May-97, to lugnet.robotics.handyboard)
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| | Vector2X compass accuracy?
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Could anyone tell me what type type of accuracy/precision you get from the vector2x compass? Does it just return n,s,e,w,nw,ne,se,sw, or a byte? Is there a datasheet somewhere on the web? Thanks for the info! -=Fred Cass=- (27 years ago, 15-May-97, to lugnet.robotics.handyboard)
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| | Re: PCB for Handy Board
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(...) I have ordered the Handy Board from Douglas Electronics. Here is more information 1. Up to date prices for Handy board (most recent version,exclusief shipping) main board : $ 16.00 serial and battery charger : $ 8.00 2. Address : Douglas (...) (27 years ago, 14-May-97, to lugnet.robotics.handyboard)
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| | Trinity Robot Contest.
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Nice pictures. Thanks for sharing them, Fred. Next time maybe someone can put up some mpegs. :) I noticed some things that sparked my curiosity. First, what are those red boxes that quite a few contestants were using...for what appeared to be (...) (27 years ago, 14-May-97, to lugnet.robotics.handyboard)
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| | Penn State
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Bob Avanzato wrote: >I am happy to report that Penn State Abington teams placed 1st, 3rd, and 5th. Bob, Congratulations to you and your team. Well done! I lament there was nothing like this in my school days, but it's nevertheless great to have it (...) (27 years ago, 14-May-97, to lugnet.robotics.handyboard)
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| | Re: Vector 2x compass
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(...) J> I'm still having problems with the Vector 2x compass. I tried J> resetting the compass as Tom Brusehaver instructed and I spent J> some time going over the schematic. It still doesn't work and I J> don't see any obvious problems. I will (...) (27 years ago, 14-May-97, to lugnet.robotics.handyboard)
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