 | | Re: Basic Sensor Question
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It sounds like you've got the switch between +5V and GND. What pins exactly are you connecting to? The sensor connections Are like this: _ _ _ G + I N 5 N D V P You dont need a resistor to use a microswitch. The HB inputs have pull-up resistors, so (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | RE: RTOS for HB?
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There is the Micro Kernel from Jean J. Labrosse. It's a free kernel readily available, also for the 68hc11. I have his book but haven't implemented the full kernel yet, only parts of it. Its well written and cheap. Look at: (URL) jaron paludanus (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Basic Sensor Question
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I just got my HB and am trying to test the sensor input, the docs say to hook up the microswitch between signal and ground, when I do this and close the switch my hb resets (because I just shorted it out...). I tried putting a resistor (330 ohm) in (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Questions about sensors
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Eric Noyau wrote: <snip> (...) The results you get from a reflective IR sensor will vary quite a lot depending on surface color, roughness, angle of incidence, electrical noise, etc. My IR sensors were not good for much of anything besides encoders, (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | RTOS for HB?
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To me is seems, that multitasking futures of IC is very insufficient. Is exist any small, inexpensive RTOS (real time operation system), that is tested for HB? I'm hear that RTXC, RTEK or MCX11 may be that RTOS. Is anybody tested some RTOS with HB? (...) (26 years ago, 21-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Questions about sensors
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(...) One thing that was discussed before (I think on this mailing list?) that I thought was pretty cool was a small robot with a microphone (FM wireless mike perhaps?) and a photocell. It would stay in the shadows while trying to get close to (...) (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | Questions about sensors
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Hi all, I'm having fun with my HB! For a software guy like me a 8 bit processor at 2 Mhz with 32K of RAM is a little small but it's so easy to add sensors to it it's just plain fun! But I'm an hardware newbie and I need more info on the sensors I (...) (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | data capture
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hello, i am trying to send a data array to my PC from the handyboard thru the serial cable. a couple months ago, i was advised to use a terminal emulator to capture the data. this has not worked, however. i was told about using a null modem cable (...) (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 20-Oct-98, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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It appears to be time for the periodic unsubscribe reminder. In order to unsubscribe from the HB Mailing List, you must send a request to Fred Martin. He is the only person who can take you off the list. Ha ha ha ha!!! Try to guess his email (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | IC installation problem
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Dear Sir, Iam getting started with my project. At our lab we are having freeware version of IC (version 2.8). We tried to install the commercial version 3.2, but we are facing some problems. We tried to install from the site you told i.e (URL) you (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | Re: platform choices...
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If money is not an issue, Mondo Tronix' Robot Store has variuos robot bases. One is large enough to hold a laptop and a great many sensors. --phil (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | RE: platform choices...
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From the pictures, it seems that this is a vehicle called 'Hercules' (or something close). I have seen it at the FAO Schwarz store recently. I have no details on how the truck operates, though the details on the box indicated that it can raise and (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | Re: waterproof seals (a bit OT)
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(...) A little off the wall, but would it simplify the sealing if you could pressurize the inside to something close to the pressure outside (equalize pressures). A miniature CO2 cartridge with a release valve may help. Mike (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | platform choices...
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Hi: When I was in school, we built an autonomous mobile robot based on a six wheeled, 'electric ride-on toy' from Toys-R-Us. It had a sturdy metal frame, two nicely geared motors, a decent battery. It worked fairly well and could carry a large (...) (26 years ago, 19-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Address locations port d and y0
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it's in the faq, at (URL) you do is write to 0x4000, 0x5000, 0x6000 depending on whether your latch is attached to Y0, Y2, or Y4 (respectively). e.g., "poke(0x4000, 0xff);" will set all the bits of a latch attached to Y0 to 1. Fred In your message (...) (26 years ago, 18-Oct-98, to lugnet.robotics.handyboard)
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| | NEC V40
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Sorry to intrude, I would like to check with people of this list if any one have used the NEC V40 ucontroller before. I'm doing a project on this and have problem programming the timer and intrl3. Kind reply to me personally at (...) (26 years ago, 18-Oct-98, to lugnet.robotics.handyboard)
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| | Address locations port d and y0
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Ok I've had another read of the FAQ, as well as a close look at the schematics for the handyboard and the expansion board. Correct me if I'm wrong, but I think I can use d0-d7 along with Y0 or similar and hook these into a HC374 to get some digital (...) (26 years ago, 18-Oct-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 18-Oct-98, to lugnet.robotics.handyboard)
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| | Re: File Types
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Hi, load compass.icb first then compass.c at the ic prompt type v2x(); compass will display heading on the lcd. I'll send you the code I am using. hope this helps. Terry Gathright ---...--- (...) icb, (...) work? I (...) to do (...) understand (...) (...) (26 years ago, 17-Oct-98, to lugnet.robotics.handyboard)
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| | File Types
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Hello, I need help with the file types used by the handyboard. There are c, asm, icb, and lis files. How do I work with them? For example, I downloaded the compass.icb and compass.c files from the HandyBoard Site. Do I need to download both of them (...) (26 years ago, 17-Oct-98, to lugnet.robotics.handyboard)
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| | RE: waterproof seals (a bit OT)
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Mathew, I dont know if they would handle 103 psi but the drive shafts used in RC boats are sealed where they go through the bottom of the boat. If you put your motor in a sealed enclosure with the shaft coming into the enclosure you may be able to (...) (26 years ago, 17-Oct-98, to lugnet.robotics.handyboard)
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| | serial board
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I'm having trouble assembling the serial board. When I do the test(see snip below) I only get about 5 volts. When I try and run the downloader, I don't see the green light come on. (tried two different computers....) any suggestions? thanks in (...) (26 years ago, 16-Oct-98, to lugnet.robotics.handyboard)
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| | IC installation problem
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Dear Sir, Iam getting started with my project. At our lab we are having freeware version of IC (version 2.8). We tried to install the commercial version 3.2, but we are facing some problems. We tried to install from the site you told i.e (URL) you (...) (26 years ago, 16-Oct-98, to lugnet.robotics.handyboard)
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| | RE: waterproof seals (a bit OT)
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You could do what they do for aquarium filter pumps -- use magnetic transfer. Put a bar type magnet on the motor shaft and put a similar magnet on a propeller just outside the hull where the motor is. Since propellers require low-torque it works (...) (26 years ago, 16-Oct-98, to lugnet.robotics.handyboard)
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| | Re: waterproof seals (a bit OT)
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(...) 200ft is about 7 ATM, roughly 103psi. Your're gonna need some really mean seals, and some serious current to turn motors within those seals. Lots more current than the 293's can handle. Probably easier to do what the big ROV's use. Take (...) (26 years ago, 16-Oct-98, to lugnet.robotics.handyboard)
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| | waterproof seals (a bit OT)
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I'm interested in building an underwater ROV and am wondering if anyone has any insight on buiding waterproof seals for the motors.(I'd like to eventually be able to go down 200 ft or so). I realize this is a bit off topic but hope that someone may (...) (26 years ago, 16-Oct-98, to lugnet.robotics.handyboard)
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| | Digital Outputs
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Hi all, I'm looking to try and get some digital outputs from the Handboard. I've read in the FAQ that this is possible using HC374(?), but I'm not sure how to do this or where to hook bits up to. Has anyone done this with some pictures or something (...) (26 years ago, 16-Oct-98, to lugnet.robotics.handyboard)
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| | RE: HandyBoard LCD Module
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I am aiming on using the 16x2 LCD from Maplins (part number DK63T, 8.89 pounds + vat, model number LM016L). I don't know of hand if the pin layout is the same as the LM052L listed in the parts list but as I am going to be using a connecting lead (...) (26 years ago, 16-Oct-98, to lugnet.robotics.handyboard)
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| | Douglas HB Boards Predrilled?
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This is a simple enough question -- are the blank handy boards from Douglas Electronics pre-drilled? Thank you. john calhoun- (26 years ago, 15-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Douglas HB Boards Predrilled?
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Yes ... mine arrived today and they are of good, finished quality... Owen (...) (26 years ago, 15-Oct-98, to lugnet.robotics.handyboard)
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| | Vector 2X
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After reading the Vector 2X Manual a couple of times, it seems that the SDI pin (Serial Data In) has no function. It is even stated in the manual that this pin is never connected. If this is the case, couldn't we use the MISO pin from the HandyBoard (...) (26 years ago, 15-Oct-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard LCD Module
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Hi, any LCD Display 2*16 with a Hitachi HD44780 Controller will do. There are several retailers. But I do not know about the UK. Batron, Rohm (the HB original) are just two producers of LCD Displays. (...) (26 years ago, 15-Oct-98, to lugnet.robotics.handyboard)
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| | Re: HandyBoard LCD Module
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Try Farnell order code 325-351. It's more expensive than it has to be, though. (...) (26 years ago, 15-Oct-98, to lugnet.robotics.handyboard)
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| | HB is just fine the way it is. [was: RE: The HandyBoard Mailing Lst]
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(...) Erm... not quite. I much prefer an email based distribution. I don't access the net interactively that often. I just queue up my mail, and my computer autonomously purges each evening while I sleep. If the handyboard list were a newsfeed, I (...) (26 years ago, 14-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Wireless Link to HB
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Dave, See (URL) for complete scematics to connect a BBiM 418 F FM transmitter/receiver to your HB! (thanks to Jan Sipke van der Veen for these scematics) Jeroen van der Vegt. Jeroen van der Vegt, A.J.vanderVegt@ITS.TUDelft.nl (26 years ago, 14-Oct-98, to lugnet.robotics.handyboard)
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| | Some Questions
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Hello, I have several HandyBoard questions: 1) How can I determine ( or does any body know ) the baud rate at which the PC communicates with the Handyboard? 2) When IC attempts to Synchronize with the Board, what is going on "Behind the scenes"? 3) (...) (26 years ago, 14-Oct-98, to lugnet.robotics.handyboard)
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| | Re: cannot communicate
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Hi All, Thanks a lot for the help. I just dont know what we would do without this mail list!! All you need is a little direction when things are going wrong. I had switched cables from my 6.270 board. THANKS A MILLION GUYS. Choo, The v2x compass is (...) (26 years ago, 14-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Mailing List
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(...) Ja, but AOL mail is a POP account, meaning that they can check it using Eudora Light, Outlook Express, etc. --phil (26 years ago, 14-Oct-98, to lugnet.robotics.handyboard)
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| | Re: parts
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the handy board vendor list is at (URL) see the information on this page, and contact the vendors directly regarding their offerings. fred In your message you said: (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | parts
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Fred, Is there a store that sell all the parts for the HB (I mean in one package)? joema (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Vector2X and motors
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Hy, I just read the compass.asm file. I don't know very much about assembly langage, but it seems that some of the motor commands are used in it. Can I still use the 4 (or a least 2) motors outputs to drive motors while using the compass. Are there (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Parts Question
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Hello. I don't know if it's proper to introduce yourself on this list or not, so I'll just say I'm new here, and new to electronics in general. Lego Mindstorms came out and got me interested, but I decided I wanted a more hands on experience. (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Mailing List
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I would prefer to keeep the present system. Eudora Light (freeware) also allows you to categorize the messages. I realize that people who are stuck with the AOL mail client don't have that luxury. Brett Anthony Equipment Technician College of (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Vector2X and motors
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(...) I wrote the compass routines, and needed at least 2 outputs. The motors were the most convenient places to get output. I am just wondering if someone else has fixed the byte swapping problem? Every once in a while the results are byte swapped. (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Recommendation for LEGO set
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(...) Looking through the Lego Shop-At-Home catalog (1-800-453-4652), it looks like the best deal for a starter robotics kit would be the Universal Set with Storage Case (#8062) for $68. Not that you would need the case, but it has a bunch of (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | RE: The HandyBoard Mailing Lst
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(...) The junk mail part is true, but I'm not sure how true it is that you need Internet access to read newsgroup. You see, the dialup is regulated by a server computer. This computer has different accessible ports. One of them is the email port. (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Mailing list advantages
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Jaron, No offense taken here...I was just voting my support for Fred, no matter what he wants to do. I think he is an incredibly generous guy to answer my dumb newbie questions. :) I also subscribe to several newsgroups for hypothisizing (sp?): (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Mailing list advantages
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Fred, I agree...There is no need to go to a newsgroup. I prefer the mailing list. Here are some reasons why: 1) No spam! Yeah!!!! 2) You don't get alot of lurkers who occasionally spout off just to critisize (sp?) someone's difficulty with the (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | RE: The HandyBoard Mailing List
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Unless Fred knows any different and 2 days is an accurate time I would suggest changing your ISP as I have always received the mailing list copy of any messages that I have sent within 30 minutes of being sent. Also a news group would require this (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Inconsistent startup
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I'm trying to get a minimal 68hc11 board to run in single chip mode. After I download the code and switch to run mode, pushing reset works fine. The problem is when a startup in run mode, this Line of text comes up in my terminal emulator. "BUFFALO (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | RE: The HandyBoard Mailing List
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Won't a news group boost the volume a bit? I sometimes have to wait 2 days before seeing my own message appear in de list... Which does not tempt to use it a lot. jaron -----Original Message----- From: Fred G. Martin [mailto:fredm@media.mit.edu] (...) (26 years ago, 13-Oct-98, to lugnet.robotics.handyboard)
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| | Re: The HandyBoard Mailing List
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i don't think the volume justifies a news-feed. also i prefer the subscription based model. regards, fred In your message you said: (...) (26 years ago, 12-Oct-98, to lugnet.robotics.handyboard)
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| | The HandyBoard Mailing List
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Howdy Fred and all others, I still enjoy the HandyBoard mailing-list a lot. So much that I would like some easier way to use it. Is there a reason this group is not on a news server (too)? In my humble opinion this would allow faster responses. And (...) (26 years ago, 12-Oct-98, to lugnet.robotics.handyboard)
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| | Recommendation for LEGO set
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Hi all, I'm looking for a recommendation on a LEGO set to buy for use with my Handy Board. I'm looking for a set with a reasonable number of pieces, gears, wheel and stuff to build a simple robot. I already have some motors and micro switches, I (...) (26 years ago, 12-Oct-98, to lugnet.robotics.handyboard)
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| | Improving the analog drivers
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Hoi, I have been playing around with the Chuck McManis (Thanks!) code for the HandyBoard. Everything compiled quite easily on my COSMIC compiler. (Isn't there a small bug in the LCD driver, I had to remove an = sign). I have (almost?) finished a (...) (26 years ago, 12-Oct-98, to lugnet.robotics.handyboard)
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| | My address blues...
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Hi all, I am here to tell you that you should love your Handy Board for it to love you and stop giving you problems... and I feel love is all around...<smmmooooch...>juz kissed my HB... But alas, my HB has stopped lovin me...well, its not really (...) (26 years ago, 12-Oct-98, to lugnet.robotics.handyboard)
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| | Re: cannot communicate
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you are using the wrong kind of RJ11 cable. See the FAQ question (URL) the heading "The R11 on my Interface/Charger board is smoking hot and is turning black! What is wrong?" Always check the FAQ, there is a lot of good stuff in there, Fred In your (...) (26 years ago, 12-Oct-98, to lugnet.robotics.handyboard)
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| | cannot communicate
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Hello All, My handy board will not communicate with the host computer. When I connect the phone cable the charge led#14 lights bright, and resistor #r11 gets real hot. I have a v2x compass on the robot and program already loaded and it works ok. Any (...) (26 years ago, 12-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Infrared I/O
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I have done a lot of work in the area of infrared I/O for the Handyboard. My software at (URL) will let you send and recieve codes for a wide variety of remotes. (26 years ago, 10-Oct-98, to lugnet.robotics.handyboard)
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| | (no subject)
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Dear HandBoard list's Members> I am using your Handy Board and I have some questions: 1) I have been trying to use the infrared subsystem. However, i have got some problems. First I load the "sony-ir.icb" and my single program which looks like this: (...) (26 years ago, 10-Oct-98, to lugnet.robotics.handyboard)
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| | Fred's book
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Is Fred's book still coming out this fall? (26 years ago, 10-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Mindstorms
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Pls man... don´t ask the mail with handyboard mailing list in the second place !!! My Rules Wizard don´t detect that!!!! I´m tired of clean my input folder!!! thanks... (...) (26 years ago, 9-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Mindstorms
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(...) Yes, ROBOLAB works with Mac. Please see my unofficial FAQ for more information: (URL) (...) (26 years ago, 9-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Mindstorms
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Robolab, sold by Pistco-Dacta (Lego educational wing), supposedly supports the MAC. (...) (26 years ago, 9-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Wireless Link to HB
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Dave, Check out Linx Technologies sight at: (URL) have some nice uhf modules that use plain digital levels for input and output. Kevin Kevin Turner klturner@elko-nv.com "You'll never have enough time, money, or memory." (26 years ago, 9-Oct-98, to lugnet.robotics.handyboard)
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| | help on a ADC
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greetings everyone. im building a digital oscilloscope (to use on a PC) for a project in school but im running into trouble with the ADC im using because it says to use separate grounds and VCC for the digital and analogue parts, but browsing around (...) (26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | Mindstorms
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Hi Fred. I enjoy the listserv, though I am a real novice and don't always understand what is going on. But, I am reading and learning. I just found out that you helped with the creation of the Legos Mindstorm robots, which I have purchased two for (...) (26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | Re: driving stepper motors
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Look up the datasheet for the SGS-Thomson L297, they have a complete circuit diagram for a stepper motor driver there. (...) (26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | driving stepper motors
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Hi all, I have nearly completed building my handy board and have come across a couple of stepper motors that i would like to use to drive my robot. Motor spec's are :- 2 Phase 6V 1.2A 1.8Deg step Is there any way of interfacing the handy board to (...) (26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Current supply
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Hallo Holger, Spezifikationen über die 68HC Familie kannst Du direkt über Motorola beziehen. Ich habe dort das "Pink-Book" kostenlos bekommen, Du must Dich lediglich mit der Literaturabteilung verbinden lassen (Ich habe für die 68HC11A0-A8) das Buch (...) (26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | driving stepper motors
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Hi all, I have nearly completed building my handy board and have come across a couple of stepper motors that i would like to use to drive my robot. Motor spec's are :- 2 Phase 6V 1.2A 1.8Deg step Is there any way of interfacing the handy board to (...) (26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | RE: About the elsema FMTR 2705
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Michael, I have tried to use the Elsema radios without the modem chips but because 27Mhz is such a noisy frequency (at least here in Australia) I found that I got way to much interference when interfacing directly to TTL. The modem chips are really (...) (26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | does this list still exist?
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(26 years ago, 8-Oct-98, to lugnet.robotics.handyboard)
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| | HELP !!! Please...
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Hi Everybody, Sorry for bugging you all, but I'm desperate for some help... My graphics Display preferences got messed up, and reinstalling the graphics card driver is not fixing it... Last night I downloaded and unzipped (URL) , but while I was (...) (26 years ago, 7-Oct-98, to lugnet.robotics.handyboard)
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| | re: Current supply
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please see (URL) has pointers to the official Motorola 68HC11 documentation. regards, Fred (26 years ago, 7-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Thanks! I found the FAQ and Archives...
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GDFRITZ@aol.com wrote: <snip> (...) The Handy Board Technical Reference (available for download from the HB web site) shows exactly how to connect microswitches and other sensors to the HB--complete with pictures. It's full of useful information; I (...) (26 years ago, 7-Oct-98, to lugnet.robotics.handyboard)
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| | Current supply
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Hi all, I am looking for the electrical specification of the 68hc11-family because I want to use one in another application. If someone, any where, this information has, PLEASE SEND IT me!!!!!! Thanks for all. PS: very interesting mailinglist (...) (26 years ago, 7-Oct-98, to lugnet.robotics.handyboard)
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| | difference between stepper & dc
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hi, I'm doing a robot to navigate it to a destination that needed to avoid obstacle collision along the way. Besides, I intend to use 2 dc motor ( 12v ,0.9Nm, 310mA rating) for the 2 wheels and include the encoder too. Should I use stepper for such (...) (26 years ago, 6-Oct-98, to lugnet.robotics.handyboard)
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| | Nevermind Squared...
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Ok, after reading it for the nth time, I think I understand this statement now: <<The normally open case means that the sensor line is pulled high by the 47K resistor on the Handy Board. The standard software for reading the state of a switch (...) (26 years ago, 6-Oct-98, to lugnet.robotics.handyboard)
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| | Nevermind...but, What is Normally Open?
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Ok, I feel real dumb. I could have sworn I didn't see the answer to that last question when I read the printed version of the docs I had. Now, I found the answer at: <<el.www.media.mit.e...dex.html>> I guess I was scanning the text for reference to (...) (26 years ago, 6-Oct-98, to lugnet.robotics.handyboard)
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| | Thanks! I found the FAQ and Archives...
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Thanks all for the motor tips! I've found the FAQ and the Mail List archives...so I shouldn't be asking so many dumb questions. However, since I've checked the FAQ and am have 45 minutes left doownloading the Archives...I have another (...) (26 years ago, 6-Oct-98, to lugnet.robotics.handyboard)
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| | Re: finding parts for Handy Board
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Russ, From your email address I assume your are looking for parts in the UK. SRAM - I don't have a Farnell catalog around but almost any 32Kx8 SRAM should work. RS part number: 311-007 Toshiba TC55257DPI, 265-465 NEC uPD43256. 68HC11 - The (...) (26 years ago, 6-Oct-98, to lugnet.robotics.handyboard)
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| | RE: finding parts for Handy Board
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The PLCC version of the 68HC11 is the one that you want. The part number from R.S. is 265-853 and in the July 97 - October 97 catalog it cost 7.50 pounds + VAT. This price has no doubt increased but the stock number should be correct. The 32K RAM I (...) (26 years ago, 6-Oct-98, to lugnet.robotics.handyboard)
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| | finding parts for Handy Board
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Hi all, I have just got a set of blank P.C.B's from Douglas electronics and now trying to get all the parts togrther to build the Handy Board. I have managed to find all the parts from R.S. components and Farnell Electronics except for the 32Kbit (...) (26 years ago, 6-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Yeeee Haaaa! and Will this motor work?
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the "correct" way is to measure their resistance with an ohmmeter. if it's less than 5 ohms, it might be a problem. the "other" way is to just plug them in and turn on the motor outputs. as long as you use full power (not any of the software-reduced (...) (26 years ago, 5-Oct-98, to lugnet.robotics.handyboard)
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| | Serial I/O again
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Greetings! I need a "good" sample of how to do serial i/o between the Handy Board and a host computer. The host computer I am intereested in is running MACOS (8.X). Here is the scenario: - The HB has an IC program downloaded on it. - The program (...) (26 years ago, 5-Oct-98, to lugnet.robotics.handyboard)
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| | Yeeee Haaaa! and Will this motor work?
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Hi all, Yeeee Haaaw! I just got my HB in from Gleason Research Friday and started figuring it out this weekend. WOW! What a blast! It was worth eating peanut butter sandwiches for 3 months to save up for! ;-) This is EXACTLY what I've needed to get (...) (26 years ago, 5-Oct-98, to lugnet.robotics.handyboard)
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| | RE: Wireless Link to HB
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Dave, I have been doing radio communications between my HB and a remote sensor but I am sure you could use the same radios for communicating with a PC at up to 2400 bps. I have been using an Elsema transceiver coupled with an FSK modem chip. (...) (26 years ago, 5-Oct-98, to lugnet.robotics.handyboard)
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| | Need help -- connecting a 4x40 LCD
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Hi all, I need to connect a 4x40 LCD to the Handy Board. The "daughter board"(*) seems to contain the HD44780 controller and a 2x16 LCD. Ideally, we'd like to remove only the 2x16 LCD and replace it with a 4x40 LCD that supports the HD44780. Any (...) (26 years ago, 4-Oct-98, to lugnet.robotics.handyboard)
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| | Replaced switch problem...
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Hi everyone, I hope you all are happy with each and every of your HANDYBOARDS, because I am not. I have just solved my RESET problem by changing the "tri-state bus controller" 74hc244 chip, I can RESET my HB by switching it off first, then on. This (...) (26 years ago, 4-Oct-98, to lugnet.robotics.handyboard)
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| | Fred thanks it Works Great but serial comm(?!) trouble
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Fred, Thanks the Polaroid sensors work great. But I'm having trouble getting the two Handy Boards to commicate using Randy's routiine for the 6.270 board. I have one board print everything that it gets from the serial port. And I have another (...) (26 years ago, 4-Oct-98, to lugnet.robotics.handyboard)
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| | RJ 11 data transfer to HB
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I was wondering if anybody knows how data is transfered through the RJ 11 modem cable to the Handyboard (i.e. the pin layout). My intention is to use this information to look for/ design a wireless link. Also, I would like to know if anyone has (...) (26 years ago, 3-Oct-98, to lugnet.robotics.handyboard)
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| | Re: Running Assembly Programs
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BS (shahian), I have written a Machine code programming system, that I use for the Handyboards, in the microprocessor classes I lecture at this university. The Machine code programming system is similar to the Motorolla Buffalo Operating system for (...) (26 years ago, 3-Oct-98, to lugnet.robotics.handyboard)
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| | (no subject)
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Dear Madhusudan, You have to buy the commercial version of IC to get these features. See (URL) for information. Regards, Fred Martin In your message you said: (...) (26 years ago, 2-Oct-98, to lugnet.robotics.handyboard)
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Respected Sir, I have read through the Nine rules you mailed me. Iam getting starting with my project. I have a question that can we use structures and Double dimensional arrays in Interactive C. If we can use what will be the syntax. Thanking you, (...) (26 years ago, 2-Oct-98, to lugnet.robotics.handyboard)
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| | Wireless Link to HB
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I know that this subject has been discussed before, but I was wondering if anybody has succeeded in establishing a 2 way wireless link between a pc and the handyboard. I will appreciate any information. Thanks. Dave (26 years ago, 2-Oct-98, to lugnet.robotics.handyboard)
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| | (no subject)
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Respected Sir, Iam a student at Bradley University, Peoria. Iam doing my M.S in computer science.As iam doing a project on Handyboard as part of my course. So, Sir Please add me to the Handy Board mailing list. I have studied about the Interactive C (...) (26 years ago, 2-Oct-98, to lugnet.robotics.handyboard)
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