 | | 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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