 | | IR Capture
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Hi handyboarders! I'm currently controlling my camcorder pan (left-right) and tilt (up-down). My camera is a Nikon VN-310. I have a small (very small!) remote control to make it zoom, record, play, stop, etc. Now the thing is I want to use those (...) (27 years ago, 2-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Exp Board ETA?
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Dear all, I must apologize for the long delay and stringing everyone along waiting for the Expansion Board. Even now I hesitate to answer for it is not pleasant to have nothing to show presently. Currently, I am working on the "Advanced Sensing" (...) (27 years ago, 2-Aug-97, to lugnet.robotics.handyboard)
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| | RV: What is the better way to comunicate handyboard???
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---...--- (...) the (...) help (...) (27 years ago, 2-Aug-97, to lugnet.robotics.handyboard)
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| | Re: int/float to string routines?%nu
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[Jeff Keyzer] spake unto the ether: (...) Look at my serial I/O routines (Fred has them on the HB ftp/website with the other user-contributed software), specifically the functions in conio.c and serialio.c. I have both float-to-ASCII and (...) (27 years ago, 2-Aug-97, to lugnet.robotics.handyboard)
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| | int/float to string routines?
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Are there any int/float to string conversion routines available for the handy board? I'm sending data over the HB's serial port to my PC, and I need to be able to send data in string format. (I was originally sending data in its actual byte value, (...) (27 years ago, 2-Aug-97, to lugnet.robotics.handyboard)
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| | RC bot base
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Hello All, I have just purchased a new TYCO 9.6V Zig Zag car. It seems to have a fairly good base w/treads. I connected it to the handyboard (after gutting it and extending the wires ). Next I gave the motors a test and they both ran way too fast. (...) (27 years ago, 1-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Voltage problem
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Well, further experimentation revealed that the chips are working, but with a quirk: If the the input of the '232 (pin 10) is tied to ground (pin 15), then the output (pin 7 of the '232, or pin 3 of J9) goes to the expected value of ~+10 volts. If, (...) (27 years ago, 1-Aug-97, to lugnet.robotics.handyboard)
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| | RE: servos?
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The best places are the mail order hobby stores. They have the widest selection of servos and very good prices. The two I recommend are Tower Hobbies (www.towerhobbies.com) and Hobby Shack (www.hobbyshack.com). Either of these sells servos cheaper (...) (27 years ago, 1-Aug-97, to lugnet.robotics.handyboard)
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| | Re: servos?
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(...) Phil, Have you tried this site: www.robotstore.com ? They have servos in discount packs as well as serial controllers for them. Cheers Massimo Piccoli -only wanting to know something new puts you a step forward- (27 years ago, 1-Aug-97, to lugnet.robotics.handyboard)
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| | servos?
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hi! Does anyone know of a good (prefferably cheap) source for servos? The hobby shops nearby seem to be pretty steep in their pricing. Does anyone know of a good, cheap source for new or used servos? Thanks a million! phil thehahns@nconnect.net (27 years ago, 1-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Voltage problem?
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Sorry, minor correction: the chip that I currently have is an ADM232LJN. =-=-=-=-=-=-=-=-=-=-...-=-=-=-=-= Owen Wessling | Developer - Companion Products | "He who dies Visual Development Tools | with the most toys 415.506.4841 | is, nonetheless, (...) (27 years ago, 31-Jul-97, to lugnet.robotics.handyboard)
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| | Voltage problem?
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Salutations all, I've got two serial charger boards that are behaving starngely... At the end of the second assembly stage, after installing the MAX232, I get what appears to be an improper voltage when the 232's pin 10 is tied to -10 volts. Here's (...) (27 years ago, 31-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Quality Technologies QRD1114 and QRB1114?
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Hi Duncan, Yes, I have worked with these parts and they can detect beyond this distance. I do not remember the exact distance but I would say at least serveral inches. -Pandit ---...--- (...) site (...) (27 years ago, 31-Jul-97, to lugnet.robotics.handyboard)
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| | Polaroid Ultraschall
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Hi, i4m looking for the polaroid Ultraschall sensorboard. How much is it and is it possible to buy it in germany (Which company ?) thanks bernd klein (27 years ago, 30-Jul-97, to lugnet.robotics.handyboard)
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| | Remove
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Plaese remove me during August. Thanks. (27 years ago, 30-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LCD Displays
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Wirz Electronics has the best deal: a 16x2 LCD for $8!!! go to www.wirz.com and follow the links to the serial LCD interface, the LCD is sold separately and there is no minimum. jm (...) (27 years ago, 30-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LCD Displays
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(...) I have an optrex DMC-16249UB plugged into my handyboard and it works fine. The optrex lcd is available from Digi-key part number 73-1039-ND $11.97 with a $5 handling charge for less than $25 order. I assume that the DMC-16249B version would (...) (27 years ago, 30-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LCD Displays
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(...) If anyone is having trouble finding the DS-1233-10's, I might be able to help. I have had to order 5 of them to get the one I need so I would be willing to either send them to others at my cost or preferably to trade at least one of them for (...) (27 years ago, 29-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LCD Displays
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Hey there, sorry I forgot to mention a few things to you: Digikey stocks the Optrex LCDs, they're about $12/ea, and since you're probably ordering from them anyway, it's no problem. The difference between the B and UB versions, I think, is that the (...) (27 years ago, 29-Jul-97, to lugnet.robotics.handyboard)
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| | LCD Displays
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Hi, Reading through the literature at the Handy Board site I discovered that there are two alternate displays to the one manufactured by Hitachi, namely the Alps LDS7A1792A and the Optrex DMC-16249. Browsing through some catalogs I found two LCDs by (...) (27 years ago, 29-Jul-97, to lugnet.robotics.handyboard)
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| | Quality Technologies QRD1114 and QRB1114?
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Hi all, has anyone used the Quality Technologies infrared sensor modules listed in the HB Technical reference? The QT (www.qtopto.com) site indicates an 'optimal' test range of .050 to .150 inches. Can they detect *at all* beyond these distances? (...) (27 years ago, 29-Jul-97, to lugnet.robotics.handyboard)
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| | Serial communications
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Hi there, I've just finished installing the serial communications hardware on the board itself and am on section 4.4.2. in the assembly manual. I was just wondering, should the green SER LED on the Handy Board and the green PWR LED on the Handy (...) (27 years ago, 29-Jul-97, to lugnet.robotics.handyboard)
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| | hamamatsu photo ic
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I've just got hold of two hamamatsu photoreflector(part #5587). I got them as samples from the company. It came with no data sheets, so I have no idea on how i can interface them to the handyboard. I plan to use them as shaft encoders. It looks like (...) (27 years ago, 29-Jul-97, to lugnet.robotics.handyboard)
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| | DLM and Mini Board
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Billy, (...) Make sure your defaults are right. Type "DLM" with no args to see the possibilities. You want -256 and -mb. In the future, please use the robot-board list, *not* the handyboard list, for Mini Board questions. See below for info. -Fred (...) (27 years ago, 28-Jul-97, to lugnet.robotics.handyboard)
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| | DLM problem help
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When I tried to download the S19 code to my mini board by using Fred Martin's dlm, I got the error message "board memory error." The bootstray program was OK to dwonload to the 256 RAM and it can sys the board successfully. However, it could not (...) (27 years ago, 28-Jul-97, to lugnet.robotics.handyboard)
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| | DLM problem HELP PLEASE
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When I tried to download the S19 code to my mini board by using Fred Martin's dlm, I got the error message "board memory error." The bootstray program was OK to dwonload to the 256 RAM and it can sys the board successfully. However, it could not (...) (27 years ago, 28-Jul-97, to lugnet.robotics.handyboard)
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| | RV: What is the better way to comunicate handyboard???
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---...--- (...) the (...) help (...) (27 years ago, 28-Jul-97, to lugnet.robotics.handyboard)
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| | Re: more servo
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(...) Joe, did you use servo_on() ? (27 years ago, 27-Jul-97, to lugnet.robotics.handyboard)
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| | more servo
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After replacing my old servo.c file which with the one downloadable from the web site I managed to get servo.c and .icb into the board but I still cannot get any response from my servo.The wires are coloured brown then red then orange.I have been (...) (27 years ago, 27-Jul-97, to lugnet.robotics.handyboard)
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| | Re: the dual servo routines...
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Anthony, A couple of suggestions, the handyboards dual servo routines are not as stable as one might like (the timing it tricky). I would suggest however that you put a separate battery pack on each bank of servos, since each bank can draw 3 amps (...) (27 years ago, 26-Jul-97, to lugnet.robotics.handyboard)
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| | Re: I2C Counters
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How many counts, how fast are you counting? Can the LSBs be dropped? What I'm suggesting is using a clock/calendar or clock/calendar/RAM such as the Philips PCF8583. Input your wheel pulses instead of the oscillator. You scale by 256in one mode, (...) (27 years ago, 26-Jul-97, to lugnet.robotics.handyboard)
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| | fixed enable_cheesy_encoders
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A while ago someone said that the system interrupt encoder part of encoders.icb did not work. I forgot who you are, sorry. I verified that it did not work as well. I fixed it and made it work so if you still want to use it, or anyone else wants to (...) (27 years ago, 26-Jul-97, to lugnet.robotics.handyboard)
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| | servo problems
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Thank you Duncan Orthner my servo.icb file now loads perfectly.My next problem is that when I try to load servo.c I get a syntax error on line 46.Can anyone help? Thank you, Joe Martin Email:joema@mpx.com.au (27 years ago, 26-Jul-97, to lugnet.robotics.handyboard)
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| | the dual servo routines...
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I am having a problem using the second A5 servo output. I am using the two servos lines to power 6 servos, 3 on one line, and 3 on the other line. I have no problem hooking up all 6 servos to the same input line on A7, but if I hook up more than one (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | I2C Counters
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Does anybody know if there is such a thing as a binary counter that will work on an I2C buss. If there is such a thing it would sure simplify a few circuits. I'm already using the SPI lines to control a few I2C DACs. To monitor motor/wheel RPMs I (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Geting Started?
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I would also look at "the art of electronics" it covers assembly and has the basics plus more of electronics. jm (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LM34 temp sensor to handy board?
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Jeff, I would highly recommend the LM358 single or dual supply op-amp. It comes in a dual package and works great on +5v only. The LM339 is a single supply comparator. There are several manufactures: motorola, and national both have data sheets on (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | What is the better way to comunicate handyboard???
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I want to connect various handyboard in a ring configuration, and i think do it via the SPI port. I need aprox. 50 meters between handyboards.Can the SPI support that distance ??? If don't how i can do that. I don't know if use SPI, RS-232 or RS-485 (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Smoking serial/charger board...!!!
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Ihave this problem, the reason be a capacitor in short randomly. Touch every cap., and search any hot , that is the very fast way to discover :))) !!!! Then unsolder any pin of this cap and search again. So probably the 5 volts at the out of 7805 go (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Servo libraries
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See the 'Handyboard FAQ' -it's linked from the main page and explains the .icb file linefeed problem. (...) (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Servo libraries
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Can any one help me out with problems downloading servo.icb.I'm using the shareware version of Ic and when I type load servo.icb the screen goes black and all of a sudden I'm back in Windows 95. Thank you, Joe Martin Email:joema@mpx.com.au (27 years ago, 25-Jul-97, to lugnet.robotics.handyboard)
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| | Re: 2nd line of display
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Have you considered storing the first line as a string and the second line as a string too so you can "reprint" the first line with the same contents making it look like only the second line was updated? I've never done it before so this is just off (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: headers
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Mouser Electronics sells them. No minimun order. www.mouser.com (or something like that) ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Which 68HC11x1xx
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Where can one find info on the A1 vs E1 differences you mention. This is not in the 68HC11 reference manual (pink book). Thanks, Clay Timmons ctimmons@asic.sc.ti.com Dallas Personal Robotics Group www.dprg.org ---- Clay, all this and more is (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Which 68HC11x1xx
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If you look in you 68HC11 Reference manual in sections 2.1.1 to 2.1.5 there is a description of the differences and there is a table showing the memory sizes for the different types (by the way the table misses the 8K ROM in the MC68HC11A8 entry in (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Which 68HC11x1xx
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(...) Fred, Where can one find info on the A1 vs E1 differences you mention. This is not in the 68HC11 reference manual (pink book). Thanks, Clay Timmons ctimmons@asic.sc.ti.com Dallas Personal Robotics Group www.dprg.org (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Which 68HC11x1xx
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'a0 is an earlier and discontinued version of the 'a1. 'e1 has some different features than the 'a1 but is almost identical for HB purposes. 'e1 has a little more internal RAM (which isn't really used by Interactive C) and some more flexibility on (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Smoking serial/charger board...!!!
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make sure you have a telephone-style and not network-style RJ11 cable. Here is how you tell if you have a telephone-style or network-style RJ11 cable. Hold the two ends together, metal contact side up, as if you were trying to plug them into each (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Which 68HC11x1xx
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Hello I want to build a Handy-Board. Now I saw, that I can use several different 68HC11 Processors. In the partlist is the 68HC11A1FN, in the assembly instruction the MC68HC11E1FN in some pictures in the same instruction a picture with the (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | RE: New list member
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In response to David's post about using the Mini SSC 2 boards and producing a walking robot (my aim is a 12 servo 6 legged walker) I am writing to provide the information that I have found. I have posted a similar question to David about the MiniSSC (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Smoking serial/charger board...!!!
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Well, Today I dig up my handyboard which was working fine with the serial/sharger board and all the last time I used it a few months ago. After a fresh overnight NiCd charge using the onboad power connector (i.e. not using the serial/charger board), (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Spi distances
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I want to connect various handyboard in a ring configuration, and i think do it via the SPI port. I need aprox. 50 meters between handyboards.Can the SPI support that distance ??? If don't how i can do that. Any help be beatifoul. Thanks in (...) (27 years ago, 24-Jul-97, to lugnet.robotics.handyboard)
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| | Re: New list member
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Regarding your problem with the jack on the serial line getting hot and melting (uh oh), I believe it is because the HB and Mini-SSC serial lines aren't quite compatable. If you're lucky, you might be getting data through (random coincidence?), but (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | 2nd line of display
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I was wondering how to access the 2nd line of the display directly. In my application I would like to update the bottom line without changing the top line. Anyone know any way to do this? Any other info on direct positioning of the cursor? Thanks, (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | New list member
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Just wanted to introduce myself as a new mailing list member. I've been reading the archives for a while, but my workplace only got the mailer working correctly to external locations yesterday. Anyway, I got my HB a while ago from Digital (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | Load Capacitance of the 8MHz crystal?
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Salutations, all, I'm putting together a couple boards, and Mouser has (unfortunately) discontinued the part number listed in the parts list. There are, however, several 8MHz crystals of an appropriate size in the catalog, but I don't have an old (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | Obtaining the Handyboard in the UK
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I have check with Customs & Excise in the UK and they say that there is no ?145 limit so obtaining the board from Hong Kong seems like a better idea and getting the enclosures from the states on their own (the charger needs to be obtained in the UK (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Converting servos + other stuff
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(...) Servos work well, but are constrained to relatively light robots (less thana three pounds. You can use them on heavier robots if you install a bearing axle for the wheels and just use the servo to drive the wheel. Basically the servo wasn't (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | Converting servos + other stuff
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hello, Yall! I'm trying to find a good source for motors, but to no avail.Has anyone tried using modified servos, as described in 'mobile robots'(Jones and Flynn)? It seems kind of expensive, but these appear to be pretty good quality stuff. (...) (27 years ago, 23-Jul-97, to lugnet.robotics.handyboard)
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| | i/c board as battery charger
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Hi, I've just succesfully assembled the hb kit i got from Digital Micro and attached it to a 2 wheel differential drive chassis. I'm very pleased with the handy board, but it's been a bit annoying when i'm downloading pcode and it takes the board a (...) (27 years ago, 22-Jul-97, to lugnet.robotics.handyboard)
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| | FW: Obtaining the Handyboard in the UK
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I don't know if Patrick sent this to the list but just in case here is his mail regarding the Handyboard in the UK. (...) (27 years ago, 22-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Obtaining the Handyboard in the UK
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<bold>John Hatton, writes: </bold><x-quoted>The problem with ordering from the USA is that</x-quoted> <x-quoted>customs charge taxes/duty on goods over ?145 ($237 approx.) which</x-quoted> <x-quoted>increases the cost. </x-quoted> In Canada custom (...) (27 years ago, 22-Jul-97, to lugnet.robotics.handyboard)
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| | Obtaining the Handyboard in the UK
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Does anybody know if it is possible to get the Handyboard in kit form or assembled in the UK. The problem with ordering from the USA is that customs charge taxes/duty on goods over ?145 ($237 approx.) which increases the cost. Thanks in advance for (...) (27 years ago, 22-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LM34 temp sensor to handy board?
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(...) Depends on the specific version of the LM34, I believe mine can read between -50 to 300 degrees Fahrenheit. ---...--- Jeff Keyzer UCSD EE Major jkeyzer@ucsd.edu (URL) (27 years ago, 22-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LM34 temp sensor to handy board?
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(...) of (...) accuracy. What is the maximum temperature that the LM34 will 'read' ? Thanks Chris (27 years ago, 22-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LM34 temp sensor to handy board?
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Jeff, I used a couple of the 10mV/deg Kelvin ones, with nothing more than the current load resistor, ie no amplification at all. For example, freezing point = zero celcius = 273 Kelvin = 2.73 volts. With the 6811 resolution of about 20 mV (5v / (...) (27 years ago, 22-Jul-97, to lugnet.robotics.handyboard)
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| | headers
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This may sound like a dumb question, but I don't know where to get headers. Digi Key has some but 4 different kinds. The parts list says nothing except 14 pin female header. Nothing else. Where did you get your headers and what are the part numbers? (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Servo control using Miniboard slaved
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Chuck: I agree with you; what I've done with the MiniSSC is to break the path into a set of linear segments with via points in joint space. The lynxmotion arm ends up needing a lot of points (therefore moving pretty slowly) to avoid jerkiness, but (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LCD display
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(27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LCD display
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Hi. Give me the location and phone number to this place that you can order them and I will consider ordering several and selling them off individually. Scott sherman@plains.nodak.edu CSG ITS NDSU (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | LCD display
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Hi there, I'm in the midst of ordering all of the parts necessary to assemble the Handy Board. However, I'm having trouble finding two parts. They are the following: Description Catalog No. Manufacturer ---...--- ---...--- ---...--- Infrared (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: FW: Serial Communications.
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Hi Fred: The Mini SSC does have a TTL-mode, but it needs inverted data i/o mode. Rather than figuring out how to do that in s/w I just used the MAX232 because it was easy and it made debugging easy into a dumb terminal program on my PC. I've had (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Servo control using Miniboard slaved to Handyboard.
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Using the Miniboard as a servo slave is a good idea, perhaps even easier is to use a BOTBoard since the BOTBoard doesn't have any motor drivers hooked up to it (no PCB modification required.) Using the MiniSSC is "ok" but for controlling multiple, (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: FW: Serial Communications.
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Mike -- Doesn't the Mini SSC have a TTL-levels mode, making the MAX232 unnecessary? Please send your serial output code, though. that would be good to distribute. -Fred In your message you said: (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | FW: Serial Communications.
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Hi John: I've used the HB to send serial command strings to a Mini SSC (for the Lynxmotion arm). I built a tiny daughterboard with a MAX232 that plugged into J6 on the board for power. Software handshaking is minimal and the MiniSSC works fine. If I (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Exp Board ETA?
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I was wondering whether there was an estimated date for the availability of the said expansion board for the HB... there is a design and schematics for a proposed Exp Board on the web site from February and I remember a thread of discussion and (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Serial Communications.
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Thanks for the info. I would like to see the code and wiring diagram if that's possible. Thanks for the help. John Hatton. (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Servo control using Miniboard slaved to Handyboard.
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A friend of mine built a radio controlled walker with six legs using twelve servos and a single BASIC stamp to control the walking. The stamp accepts the PWM from the RC receiver (using the pbasic 'pulsin' command) and outputs the pulses to all of (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Servo control using Miniboard slaved to Handyboard.
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As an addition to my earlier message I have a cheaper and possibly more versatile way of controlling the servos. I have obtained information on the Servo16 algorithm by Erik de la Iglesia which runs on a MC68HC11E1 (he mentions using the E9 but the (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Serial Communications.
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I am considering using two MiniSSC II servo controllers from Lynxmotion ((URL) to control the servos on a six leg walker using the handyboard as the CPU. The only problem is that the MiniSSC uses asynchronous serial communication. Is it possible to (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LM34 temp sensor to handy board?
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I tried the circuit out tonight, and it works! (Mostly.) I hooked up a 1K and a 3K resistor for R2 and R1, for a gain of 4, and the output is roughly linear with the input. Still need to do some more testing. I ended up having to use a +/- 12V (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Geting Started?
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Why don't you start by perusing the web site... pretty much all of your questions are answered there. The site's home URL is (URL) in particular: * the FAQ * the "get your hands on a handy board" * the software resources page * the tech docs page (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Re: LM34 temp sensor to handy board?
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It sounds like you just want a standard non-inverting amplifier. wire an op amp like this: |\ sensor------|+\ | >-+-analog input of 6811 +--|-/ | | |/ | +----R1-+ | R 2 | GND where R1 and R2 are chosen such that (R1+R2)/R2 is the gain you want, in (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | Geting Started?
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Hi everyone, I am fairly new to robotics/electronics and was wondering how to get started with the HandyBoard. So what is the best way to get started? I already know how to program more or less in C and a little in C++ can you program the Handy (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
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| | LM34 temp sensor to handy board?
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I've got on my desk here a National Semiconductor LM34 temperature sensor. It outputs a voltage corresponding to 10mV/deg F. So, if it's 78 degrees F in the room, I get a voltage of .78V. I'd like to hook this device to an analog port on my handy (...) (27 years ago, 20-Jul-97, to lugnet.robotics.handyboard)
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| | Com port trouble with IC
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I recently bought a Handy Board which works fine, but my version of Interactive C wants to communicate with the board via COM1 only. The port I have available, without completely changing my computer setup, is COM3. How do you get IC to change ports (...) (27 years ago, 20-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Voltage
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(...) 12v is fine. you could up go to 18v or so w/o problems. you might not even need to change the adapter. if the yellow charge LEDs light, then the batt is charging ok. it will be slower than the original pack but maybe that is not a problem for (...) (27 years ago, 20-Jul-97, to lugnet.robotics.handyboard)
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| | Re: assembling i/c board
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no, it should be just as bright. make sure you use the special low-current HLMP LEDs as specified. normal LEDs won't work right. -Fred (...) (27 years ago, 20-Jul-97, to lugnet.robotics.handyboard)
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| | Voltage
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Hello all, What is the max. voltage I can run through the handyboard. I have a 12v dry cell battery that I would like to use. If I can use a 12v battery, can I change the transformer to the handyboard charging/serial unit? Also, I am looking for a (...) (27 years ago, 20-Jul-97, to lugnet.robotics.handyboard)
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| | assembling i/c board
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Hi, Is it normal for the i/c board PWR led to not glow too intensely?...cause my PWR led is not glowing that brightly compared to my serial led. Before my PWR led did not glow at all until i resoldered some joints that look like it needed more (...) (27 years ago, 20-Jul-97, to lugnet.robotics.handyboard)
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| | Re: assembling I/C board
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(...) Well, if the power LED didn't light, then you don't have power to the MAX232 chip (unless the LED is installed backward or broken). It sounds like you've already skipped ahead without passing the first set of tests, which I've copied from the (...) (27 years ago, 19-Jul-97, to lugnet.robotics.handyboard)
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| | assembling I/C board
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Hi, I've encountered some problems assembling the interface/charger board. After installing the 16-pin socket for U16 and the capacitors and then mounting the MAX232 chip, I then applied power to the board. But, the PWR LED did not lit up and the (...) (27 years ago, 18-Jul-97, to lugnet.robotics.handyboard)
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| | Unsubscribe
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Unsubscribe me, Please. Thank you, -- Daniel Blakley HP Roseville Ntwks Div 916-785-8759 (27 years ago, 17-Jul-97, to lugnet.robotics.handyboard)
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| | back-ordered from DMS/Prabal Dutta?
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Hi everyone, I have been receiving word of people having orders 8 to 10 weeks old with Digital Micro Systems/Prabal Dutta that have not been filled. I would like to assess the situation more generally. If you presently have items back-ordered at (...) (27 years ago, 17-Jul-97, to lugnet.robotics.handyboard)
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| | serial light steady on
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I have completed the charger/serial board and it checks out Ok except for the fact that as soon as the host serial cable is plugged into the board, the green serial light is steady ON. The voltage between pins 2tx and 7gnd is -12V. I thought this (...) (27 years ago, 17-Jul-97, to lugnet.robotics.handyboard)
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| | Re: HandyBoard newsgroup...
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(...) I got mine from BG Micro (www.bgmicro.com/800276-2206) but I wasn't too happy when my CPU and static ram came in the same, non-static guarded, non-foam inserted, plastic bag. I've also been looking for a 86HC12 vendor but haven't found any. (...) (27 years ago, 16-Jul-97, to lugnet.robotics.handyboard)
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| | HandyBoard newsgroup...
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I'd like to know how to get on the handy board newsgroup and also would like any ordering information on the Microprocessor 68HC11. Thanks, Mr John Anderson (27 years ago, 15-Jul-97, to lugnet.robotics.handyboard)
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| | Mars Rover
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Can anyone direct me to a good site where i can get info about the sensors, behaviors and other mobile robotic aspects of the mars rover... Thanks Sriram (27 years ago, 15-Jul-97, to lugnet.robotics.handyboard)
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| | [Fwd: Announce: ColdFire Discussion List]
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The coldfire kit looks like a good deal. Does anyone know what the pSOS, C compiler and debugger cost if you wish to purchase them after the 60 day demo period? (...) (27 years ago, 15-Jul-97, to lugnet.robotics.handyboard)
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| | [Fwd: Announce: ColdFire Discussion List]
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For those of you who haven't heard, Motorola is currently offering a deal on the ColdFire Evaluation board. The board comes with 4Mbytes of DRAM (in the form of a 1Mx32 SIMM) and 256KB of Flash ROM (two 128KB Flash ROMS), two serial ports, a (...) (27 years ago, 15-Jul-97, to lugnet.robotics.handyboard)
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