 | | Radio Communication and the Handy Board
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In 1998 I made a mobile robot that communicates with a desktop computer using a radio module. Shortly after I accomplished this I made a webpage showing the results. Recently I moved to this page to another location. I invite you all to take a look (...) (25 years ago, 29-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Video Transmitters
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Yeah, I think it was free for a first time customer! -- Ray Gary Livick <handyboard@media.mit.edu> wrote in message news:383C71AB.C0C8B2...ell.net... I received the X-10 cam I ordered two days ago. It arrived right on time, and is pretty impressive (...) (25 years ago, 29-Jan-00, to lugnet.robotics.handyboard)
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| | Re: IR detection
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Yeah. It is a material that will illuminate when a IR source shines a beam on it. -- Ray Dovi Poznanski <handyboard@media.mit.edu> wrote in message news:3837E5F9.517BC7...u.ac.il... hey does anybody know how an IR sensor card works? -- Dovi (...) (25 years ago, 29-Jan-00, to lugnet.robotics.handyboard)
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| | ratings of stepper and servo motors
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hi all what are the ratings (voltages and currents loads) of stepper and servo motors compatible with the handy board. cheers fazal (25 years ago, 28-Jan-00, to lugnet.robotics.handyboard)
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| | Re: HandyBoard died
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I am sorry to hear about your situation, but I would like to point out that this sort of thing is exactly why the handyboard could, I believe, benefit from having a durable case made for it, which provides all access to the handyboard's (and (...) (25 years ago, 28-Jan-00, to lugnet.robotics.handyboard)
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| | test
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Testing (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | Re: PID Control
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(...) Yep ... and no. The following was applied to a pneumatic cylinder controlled via an Amplicon Liveline I/O card and an SMC proportional valve (ie not Lego). code ***...*** pidloop: 'e = error, sp = set point (desired value), pv = process value (...) (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | RE: PID Control
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This sounds like the sort of software that would be benifitial to everyone working with the Handyboard, perhaps it could be posted on the HB site? Fred? Reagrds, Matt (...) (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | Re: PID Control
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Hi Mike: May I obtain also the code that you mentioned? I'm supposing the code was used at the HandyBoard? Thanks in advance for your help... Victor G. Ruiz Aranda ruizvic@mx1.ibm.com IBM de Mexico S.A. Coordinador IAS Planta de Manufactura T/L (...) (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | Re: colour sensor
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I would suggest that the sensors are picking up IR. I would wager that your color filters are passing the IR with little attenuation and that your sensors are peaked in the IR region and little affected by the visible color information. If you have (...) (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | Re: colour sensor
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(...) I posted to this yesterday, but my reply seems to have not appeared. What you need to have, is four sensors, not three. The fourth has no filter, and measures 'ambient' light. You then need to compare the return from this, to the other three (...) (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | HandyBoard died
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Hi all! I have some troubles with my HB. I have set it up together with the expansion board, and it worked properly and very fine. Then once, unfortunately, the LCD, connected to the expansion board, touched one of the five motor-power diodes, and (...) (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | Re: PID Control
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Bill I have code in QuickBasic and C, would this be any good to you?? It was code that I used at Uni and both versions have been tested on real apps so I know they work. For example, I developed a pneumatic cyclinder controller based on the QB (...) (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | PID Control
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Has anyone out there developed a good PID control program in IC. I didn't want to reinvent the wheel if it was already available. Thanks Bill Denzel (25 years ago, 27-Jan-00, to lugnet.robotics.handyboard)
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| | Re: colour sensor
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(...) I have typically used phototransistors rather than CDS photocells but both will work depending on the application. Sensors are like computer programs, when they do one thing they are fairly easy, if they do multiple things they are more (...) (25 years ago, 26-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Ceramic resonator for mini board
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(...) I searched their site and got the SMD components only for some reason. But the part you want is in there. Try either PX800-ND or PX800MC-ND I'm not sure what the difference is. the 'MC part looks like what I've used but the Manual states that (...) (25 years ago, 26-Jan-00, to lugnet.robotics.handyboard)
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| | colour sensor
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hi chuck i tried using the photocells i got with the gleason research sensor motor kit. i used red green and blue filter, but the values are almost same (with a variation of 1 or 2). the variation is much more sensitive to the distance between the (...) (25 years ago, 26-Jan-00, to lugnet.robotics.handyboard)
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| | Ceramic resonator for mini board
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Hi all, I am having a problem with the ceramic resonator for the Miniboard and I hope someone out theer may help. In the MiniBoard part list the ceramic resonator is listed as DigiKey part # PX800. However, that is an incomplete part number that (...) (25 years ago, 26-Jan-00, to lugnet.robotics.handyboard)
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| | MIT 6.270 robot design competition, Thursday, Jan 27
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hi everyone, the mit 6.270 contest is this week. it's open to the public; you just show up. the official start time is 6 pm. that means you must get there between 4 and 5 pm, depending on how good you'd like your seats to be. typically, all the (...) (25 years ago, 26-Jan-00, to lugnet.robotics.handyboard)
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| | typos corrected in README for 6.270 SPWM routines
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Sigh...you proofread and proofread, and still you miss typos... I found and fixed some in the file ftp://junior.apk.net...0_SPWM.TXT So, if you grabbed it yesterday, grab this one again today. Sorry for the inconvenience. *Rich* (25 years ago, 25-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Distance Sensors
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Hi Raj, Your range of interest is small, but see if you can get anything out of the Sharp IR sensors from Acroname ((URL) luck! (...) ______ ______ ---...--- |_ _| |_ _| Kam Leang | |______| |______ University of Utah | |_ _| |_ _| Department of (...) (25 years ago, 25-Jan-00, to lugnet.robotics.handyboard)
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| | Distance Sensors
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Hi All: Does anyone know of any good mini distance measuring sensors which can be used with a microprocessor? The required range is 0-30 mm and small size. Names of distributors would be greatly appreciated. Thank You. Raj (25 years ago, 25-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Handy Board Not Responding
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It is possible to overcharge the HB only if you use the Serial Interface & Battery Charger board switched into Zap charge mode. Zap charge mode will fully charge the HB battery in three hours, after which point the battery will overheat and could (...) (25 years ago, 25-Jan-00, to lugnet.robotics.handyboard)
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| | Handy Board Not Responding
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I was using the handy board when it ran out of power. I decided to charge the board for 14 hours but I actually left it charging for 17 hours. Afterwards I tried downloading the pcode_hb.s19 into the board to make sure it would work. Unfortunately I (...) (25 years ago, 25-Jan-00, to lugnet.robotics.handyboard)
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| | lugnet.off-topic.test
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This is a test (25 years ago, 25-Jan-00, to lugnet.robotics.handyboard)
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| | Smooth PWM codefix for 6.270 boards available
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I know this is the Handy Board mailing list...but we are still using 6.270 boards in my course, and I recently finished porting Julian Skidmore's Smooth Pulse-Width Modulation (SPWM) motor routines over to the 6.270 board. This software upgrade (...) (25 years ago, 24-Jan-00, to lugnet.robotics.handyboard)
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| | Re: sonar
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The location(C7) for the .1uF that you are refering to is located on the sonar driver board, on the lower left corner of the ribbon connector. Any non-polarized cap will do just fine. (...) (25 years ago, 24-Jan-00, to lugnet.robotics.handyboard)
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| | Re: colour sensor
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An optical sensor with a filter in front of it. Standard photocell works fine. Three of them, each with a red, green, and blue filter and then sampling the three inputs can be very flexible. --Chuck (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | RE:color sensor and Vision any one?
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(URL) sells a relatively cheap camera/frame grabber package named the ramcam. you access it directly and treat it like a ram chip. The color vision would proboly be easy to interface as a color sensor. And To you Handyboarders out there, would this (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | colour sensor
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what kind of sensor can i use to determine the colour of a surface. cheers fazal (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | Re: sonar
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(...) I would imagine that this is the case since Fred states on his page that it won't work without it on most versions of the driver board. The easiest way to do it is just desolder the two pads that align with the c7 position on the HB. Stick a (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | sonar
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i recently purchased a handy board, an expansion board, and a polaroid 6500 sonar sensor. i installed the expansion board, along with the appropriate libraries. i also plugged the sonar into the expansion board, and used the code for the sonar on (...) (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | HP encoder
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Hi, Does anyone know how to connect HP optical encoder to HP quadrature IC and Handyboard? Thanks. Regards, Will (25 years ago, 23-Jan-00, to lugnet.robotics.handyboard)
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| | Re: multitasking
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In my reading of it, it will just chew the cycles. Here is the routine msleep(), used to implement sleep. See how it just does a busy wait? I wrote a version (now gone into data heaven when my drive crashed) that would check the time, and then give (...) (25 years ago, 22-Jan-00, to lugnet.robotics.handyboard)
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| | multitasking
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How clever is the multitasking in IC? If I have a task that I only want to run ever 10 seconds, can I just put a sleep statement at the top of the routine? Will the sleep statement chew up processor cycles, or will IC realize that it should defer to (...) (25 years ago, 22-Jan-00, to lugnet.robotics.handyboard)
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| | Your site has been included on OpenHere
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Hi, Your site has been included in the OpenHere.com index and search engine. OpenHere is one of the 10 largest index and search sites on the Internet. Your site listing is: Link: (URL) The Handy Board Description: The Handy Board is a 6811-based (...) (25 years ago, 22-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Handyboard C library for m6811 gcc port
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Curt Mills, WE7U writes: > I was going to get to modifying it for Stephane's port, but haven't > gotten around to it. Thanks! I knew about this library, but I was hoping to prod some other porters to the surface with my comment. I guess I'll be (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Modifying a servo for use with HB
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(...) What sources for servo hacking have you read? Depending on the servo (the Futaba S148 is the easiest), there are a few things to do. Using the 148 as my example; Clip off the end-stop and pull the bushing from the spline gear and remove the (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Handyboard and MIDI
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I'm trying to use my handyboard to send MIDI messages to a host. I downloaded and tried the MIDI libraries from Colby Leider, and it looks like it's just what I need, but I can't get them to work with IC 2.8. Is anyone using the Handyboard with (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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| | Hewlett Packard optical encoder
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Hi, Since photo reflector with segmented wheel pattern doesn't help in precise mobile robot navigation, I intend to use Hewlett Packard optical encoder and I have selected HEDS-9140 series.I know someone has tried this item long time ago and I hope (...) (25 years ago, 21-Jan-00, to lugnet.robotics.handyboard)
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