 | | TI-92
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Have anybody link a TI-92 (Texas Instruments Calculator). Because I fail on my first try. And only got a cero value form the TI-92. Any Help? Thanks Daniel R (24 years ago, 11-Sep-00, to lugnet.robotics.handyboard)
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| | IR Reception
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I posted this question previously but got no reply so I am trying again. I have mounted the IS1U60 infrared demodulator on to the HB but I have realised that it can only recieve from a particular direction. Is it possible to mount another IS1U60 by (...) (24 years ago, 11-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Encoders
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IC can't sample the A/D converters that quickly. As long as you're generating a nice squarewave you could connect it to one of the input capture pins and write a custom interrupt routine to maintain the count. --Chuck (...) (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | Encoders
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Since some are on the subject of encoders, I have a problem I would like to get help on. I have a hall effect sensor dutifully counting pulses on a gear. The gear will rotate from 800-4000 RPM. I am running the signal through a 741 OP Amp to (...) (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Encoders, what are you using?
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Jerry, go to: EE 401 - Electrical Engineering Design Course - 1999/2000 then to shaft encoders they have 16, 32, or 64 sections you can print out. bye, Terry G. ----- Original Message ----- From: "Jerry Normandin" <jerrynormandin@ne.m...iaone.net> (...) (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | I fixed my slop!
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Hey.. I added a quick reverse drive to the moter.. it turns out my slop was the drive system coasting! I added brake and I am more accurate now!!!!!!! (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | Encoders, what are you using?
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Hi, My homebrew quad hall effect encoder works, I'm learning from it. I get @ 1/4" resolution so there's plenty of slop. I can have the robot pace back and forth on a straight track for 6 passes or so then I start to veer off track. So I guess it's (...) (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | Robot Program for Rover so far...
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Hi everyone. Well I decided to go with a Quad Hall Effect encoder. I mounted 4 very small magnets on my 1" plastic drive gears and used the Hall Effect switch that Fred recommended. Here's the code I have and the results! For a 180 degree turn I get (...) (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Sensor supply voltage & PC communication
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hi. you can certainly tap the 9.6v batt output to power the sensor (use J13), but make *sure* that the sensor does not put out more than 5v, or you'll blow your analog inputs. if you're not sure, put a 1K resistor in series with the sensor's output (...) (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | External Motor Power
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I have read the FAQ on cutting the trace that supplies motor power from the Handyboard battery so you can use another power source but it doesn't address the issue of what to do if you have an expansion board. I am sure someone must have done this (...) (24 years ago, 10-Sep-00, to lugnet.robotics.handyboard)
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| | Sensor supply voltage & PC communication
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Hi Everyone, I want to use a photoelectric sensor with my handy-board. The sensor require a 10 V supply voltage, while the digital inputs of the HB only supply 5 V. Can I simply use one of the motor outputs to supply the sensor, and plug the signal (...) (24 years ago, 8-Sep-00, to lugnet.robotics.handyboard)
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| | Newton Labs posted the pcode31 source back up!!!...!!!
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Hi everyone! I guess it pays to be polite and explain why you need something! Well Newton Labs posted the pcode source back on the web server. If anyone owns an Interactive C 3.1 license and you want to work with the pcode source, it can be found (...) (24 years ago, 8-Sep-00, to lugnet.robotics.handyboard)
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| | The Pcode Source -> working on an agreement with Newton Labs
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Hi Everyone. I am working on aquiring the source to pcode_hb.asm. I pointed them to the newsgroup posting that has Randy Seargent himself directing someone to download the pcode source from newton labs. I also informed him that if I am going to (...) (24 years ago, 7-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Newton Labs Not releasing PCODE source for 3.1
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That's why I Love OPEN SOURCE and the Linux Movement! OK, then I want to RETURN MY LICENSE and move on. (...) (24 years ago, 6-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Newton Labs Not releasing PCODE source for 3.1 -> Fred Help!
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Whew. I have encountered the same problem back when I wanted the improved PWM code in the new version of IC. Back then (about 2 years ago) I managed to find someone who actually had a copy of the 3.1 pcode. Don't ask me for it, I lost it long ago. (...) (24 years ago, 6-Sep-00, to lugnet.robotics.handyboard)
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| | RE: Newton Labs Not releasing PCODE source for 3.1
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Jerry- You didn't 'buy' IC 3.1. You paid for a license to use the software. I doubt that you were buying the actual source code, which probably took hundreds of hours for the programmers to write. That is their intellectual property, and it is their (...) (24 years ago, 6-Sep-00, to lugnet.robotics.handyboard)
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| | Any SPI bus gurus out there?
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Hi, I have a question. Does the sonar implementation that's suggested prohibit you from adding additional devices to the SPI bus? I know you can add as many SPI devices as you have enable lines. I'd like to add sonar, compass, and RTC / battery (...) (24 years ago, 6-Sep-00, to lugnet.robotics.handyboard)
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| | Newton Labs Not releasing PCODE source for 3.1 -> Fred Help!
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George Musser brought up a very good issue! Where the heck is pcode_hb.asm? This code was released in ver 2.86 and enhancements were made to the pcode from the user base. Newton Labs has tunnel vision and NO CLUE to how open source software can (...) (24 years ago, 6-Sep-00, to lugnet.robotics.handyboard)
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| | Pcode source code; disabling the LCD
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Hi all, Does anyone have a copy of the pcode source for IC 3.1? According to an earlier posting, it used to be available on the Newton Labs FTP site, but it's not there anymore. Also, has anyone ever completely disabled their LCD? Even after the (...) (24 years ago, 4-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Here's the Rover with handyboard
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Hello Jerry, Did not get the picture of the Mars Rover. Sounds like you have a good start on your robot, please keep us advised on the problems and solutions. Was it hard to convert the mice encoders?? should be very accurate, please post the (...) (24 years ago, 4-Sep-00, to lugnet.robotics.handyboard)
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| | Here's the Rover with handyboard
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Attatched is a picture od the toy Mars Rover that I am modifying. Right now I have the handyboard driving two lego motors and I ripped apart a mouse to use the encoder. Mice encoders sure work great! And they are much cheaper than commercial (...) (24 years ago, 3-Sep-00, to lugnet.robotics.handyboard)
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| | Linux Works well with the handyboard! and Cool Platform Hack!
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Hi, I got all the bugs out of my handyboard! First I had to bend several leafs on my 68HC11 (Thanks Fred!), Socket was ok, the processor was not. Also, when I did a burn in of my board, I did a complete trickle charge on the battery pack, ran (...) (24 years ago, 2-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Temporary solution for W2000, but not Notebook
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Hi, I am assisting a Robotics course with the venerable HandyBoard, and have been having the same problem with the Toshiba, and ThinkPad laptops. With Toshiba though, there is no infrared as far as I can tell, and I can run and load the inital pcode (...) (24 years ago, 1-Sep-00, to lugnet.robotics.handyboard)
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| | Servo.c
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Hi. I´m using the servo_a7.icb file to drive a servo on my handyboard, but the servo is not moving. it seems that the frequentcy is not the right one (40hz). And I was looking for the servo.c file, because it seem easy to use, but i can´t find it. (...) (24 years ago, 30-Aug-00, to lugnet.robotics.handyboard)
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| | Hi all
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Dear Everyone, Nicolle and Jason have split up. The hoovjay@saber.net email account will end today. To email Nicolle use: hoover@math.ucdavis.edu To email Jason use: jtparks@flashcom.net I hope everyone is doing well, Jason (24 years ago, 31-Aug-00, to lugnet.robotics.handyboard)
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| | Temporary solution for W2000, but not Notebook
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This is essentially a status report telling what I've come up with as a partial solution to to running the Handy Board in our new environment. I have not succeeded in getting IC to run under Windows2000 DOS. The labs now have machines with 120 MB (...) (24 years ago, 31-Aug-00, to lugnet.robotics.handyboard)
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| | IR demodulator
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I have mounted the IS1U60 infrared demodulator on to the HB but I have realised that it can only recieve from a particular direction. Is it possible to mount another IS1U60 by connecting the leads to the same locations on the pcb via wires and then (...) (24 years ago, 29-Aug-00, to lugnet.robotics.handyboard)
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| | Is this a bad PLC socket?
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Hi, I built up a handyboard and most of it works great! testmotor passes, testdigitals passes, even the infrared remote detects and trnasmitts fine! I just have one analog port, port 3 that does not work unless I apply a little pressure to the cpu! (...) (24 years ago, 29-Aug-00, to lugnet.robotics.handyboard)
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| | Re: Lego RCX rotation sensor w/handyboard
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(...) The Expansion Board has inputs specifically for Lego sensors. In particular, I've used the rotation sensor and it works fine. You simply take a lego connector, cut the wire and put the HandyBoard connector on. Plug it in and you're ready to (...) (24 years ago, 26-Aug-00, to lugnet.robotics.handyboard)
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| | Re: IR output driver
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it's rated for 1 amp. so you'd have no trouble at all with what you describe below. fred In your message you said: (...) (24 years ago, 26-Aug-00, to lugnet.robotics.handyboard)
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| | Re: Lego RCX rotation sensor w/handyboard
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Hello, With the Handyboard expansion board, you will connect the LEGO rotation sensor (LEGO Angle sensor) easily. Here is the link: (URL) Hui (URL) Message----- From: Andrew McGeachie <geech-lugnet-news@engine5.com> To: handyboard@media.mit.edu (...) (24 years ago, 25-Aug-00, to lugnet.robotics.handyboard)
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| | Lego RCX rotation sensor w/handyboard
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apologies if this is a frequently asked question...i'm a newbie to this list. is it possible to hook up a Lego Mindstorms rotation sensor to the handyboard? and if so, does anybody have good instructions for doing it? thanks. - andrew (24 years ago, 25-Aug-00, to lugnet.robotics.handyboard)
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| | RE: IR output driver
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Hi! Zetex has a great tech page where all of the specs are listed: www.zetex.com It will have the beta values... Kent | -----Original Message----- | From: jhatton@media.mit.edu [mailto:jhatton@medi...mit.edu]On Behalf Of | John Hatton | Sent: (...) (24 years ago, 24-Aug-00, to lugnet.robotics.handyboard)
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| | Fuzzy Logic
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Does any body know where I could find code, to run fuzzy logic on a HC11? Thanks Daniel (24 years ago, 22-Aug-00, to lugnet.robotics.handyboard)
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| | Re: Remote controlled robots with handy board?
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Hi Jack, You can check with the following site for radio communication for Handyboard: (URL) you want to know more "Handyboard" based robot and applications, you can check: (URL) Regards, Patrick Hui patrick@robotstorehk.com -----Original (...) (24 years ago, 24-Aug-00, to lugnet.robotics.handyboard)
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| | Remote controlled robots with handy board?
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Hi, I was wanting to create a robot that has controlled though a wireless remote controll type of device, is this possiable with the handyboard or an extrenel device (for communications) that feeds the hand board the information? Would the (...) (24 years ago, 24-Aug-00, to lugnet.robotics.handyboard)
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| | gleason research handy board for sell
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I have a Gleanson Research GRHB-PC Handy board for sell it is in very good shape in factory box only used a few times. Email me at diamondw@kennecott.com Wayne Diamond diamondw@kennecott.com (24 years ago, 24-Aug-00, to lugnet.robotics.handyboard)
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| | IR output driver
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Does any one know how much current the ZTX614 NPN Darlington transistor (Q1 - IR output driver) can handle. I am wondering whether I can use this to driver a total of 5 IR leds, either in parallel or series. The indicator led circuitry that goes in (...) (24 years ago, 24-Aug-00, to lugnet.robotics.handyboard)
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| | affiliation
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Hi, I found your site in webcrawler. I am looking for websites who are interested in either getting listed on our website or participation in co-op programs with us. We are kind of in a rush to get things going for the holiday season. If you have a (...) (24 years ago, 23-Aug-00, to lugnet.robotics.handyboard)
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| | Assignment Abbreviation
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Hi all, I am using the free version of IC (2.860 BETA). I have some trouble with the assignment expression abbreviation, i.e. count += 2;. According to the manual, I can do: count is declared as type int. count += 2; count -= 2; count *= 2; count /= (...) (24 years ago, 22-Aug-00, to lugnet.robotics.handyboard)
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| | Re: LCD Printing
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you can try e.g. printf("%c", 11); to see what ASCII 11 looks like. fred In your message you said: (...) (24 years ago, 22-Aug-00, to lugnet.robotics.handyboard)
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| | LCD Printing
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I was wondering if it is possible to print non-alphanumeric characters on the display, such as the heart that is used as the heart beat display. Is this just one of the normal ascii characters ? (e.g. heart symbol = 03h), it would be useful if I (...) (24 years ago, 22-Aug-00, to lugnet.robotics.handyboard)
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| | Re: IC using Windows 3.11
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There's not much that can be done. IC 3.2 doesn't run on Win 3.1. Your choices are: * upgrade your laptop to W95. * downgrade your use of IC to the freeware version on all of your machines. Fred (...) version (...) it does (...) reason (...) (24 years ago, 21-Aug-00, to lugnet.robotics.handyboard)
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| | Re: IC using Windows 3.11
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I can run the freeware version fine, my problem is the programming functionality that has been added to 3.2 that is not in the freeware version (the interface does not matter too much as once the hb is programmed it does not need the pc connection). (...) (24 years ago, 21-Aug-00, to lugnet.robotics.handyboard)
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| | Re: IC using Windows 3.11
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sorry about the blank msg, what i meant to say is: doesn't the freeware/DOS vers of IC run nicely under win 3.11? in a DOS shell, of course. maybe some readers can share their experience with this. fred In your message you said: (...) (24 years ago, 21-Aug-00, to lugnet.robotics.handyboard)
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| | Re: IC using Windows 3.11
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(24 years ago, 21-Aug-00, to lugnet.robotics.handyboard)
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| | IC using Windows 3.11
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Is there a version of IC that will run under Windows 3.11 ?, The current version (3.2) only runs on Win32 platforms (9x & NT) and the freeware version only runs under DOS. The reason that I ask is that version 3.2 contains alot of functionality the (...) (24 years ago, 21-Aug-00, to lugnet.robotics.handyboard)
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| | Re: play wav files on HB
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What I was actually wondering was whether there was a utility that could convert small wav files (only a couple of seconds or so) into a format playable by the hb, possibly using the existing tone functions using some form of sampling. The intended (...) (24 years ago, 18-Aug-00, to lugnet.robotics.handyboard)
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| | Re: IC registration number
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Hi John, (from their web pages (URL) Newton Research Labs, Inc. 4140 Lind Avenue S.W. Renton, WA 98055 Tel: 425.251.9600 Fax: 425.251.8900 mailto:support@newtonlabs.com I've had a similar problem (system I was running lost the HD, big time crash) (...) (24 years ago, 17-Aug-00, to lugnet.robotics.handyboard)
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| | play wav files on HB
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I've seen mentioned in the last few weeks something about playing wav files on the hb, is this using the standard hardware or is there a utility that can convert small wav files into a format playable by the hb. I have gotten as far as playing the (...) (24 years ago, 17-Aug-00, to lugnet.robotics.handyboard)
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| | Re: IC registration number
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Thanks for the suggestion, the problem is that the main machine that it was installed on was my pc at my previous employers (I was intending on using it at lunchtimes) and when I moved jobs the pc would have been reformatted. I thought I had (...) (24 years ago, 17-Aug-00, to lugnet.robotics.handyboard)
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| | Re: Complete memory map on Handy Board
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yes, please see (URL) your message you said: (...) (24 years ago, 17-Aug-00, to lugnet.robotics.handyboard)
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| | Complete memory map on Handy Board
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Is there a complete memory map for the handyboard I can Look at? I'm building up a board and would like to use the expansion port. I am going to interface a VX1, the interface will be different than what has been previously done. AlsoI've been (...) (24 years ago, 16-Aug-00, to lugnet.robotics.handyboard)
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| | Question on Handy Board connected to three other 68hc11
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Hello, I bought an Handy Board and I would like to use it with 3 other 68hc11e2 cards. These four 68hc11 are connected together with the port D (MISO, MOSI, CLK). SS of Handy Board is connected to +5v and Handy Board always is the master. On the (...) (24 years ago, 16-Aug-00, to lugnet.robotics.handyboard)
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| | IC registration number
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Could somebody let me know who I should contact for the following problem. I bought IC3.1 a year or so ago (have downloaded 3.2 since then) and I was provided with the relevant registration codes via email. I need to reinstall IC onto my pc but (...) (24 years ago, 16-Aug-00, to lugnet.robotics.handyboard)
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| | config register.
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I am using hbdl to download to my hb. In the config text box if I set it to OCh the downloader reports an error stating the the config register is ODh. I thought that the program was supposed to set the config register to whatever was in the text (...) (24 years ago, 16-Aug-00, to lugnet.robotics.handyboard)
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| | Re: More download trouble w/Windows 2000 on notebook
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can you try booting the computer into DOS mode and running IC from there. not that it's a good long term strategy, but sometimes this works when running IC from within Windows doesn't. fred In your message you said: (...) g (...) t (...) (24 years ago, 13-Aug-00, to lugnet.robotics.handyboard)
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| | Gameboy cam, HC11??
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Hi I was wondering... is it possible to hook up the gameboy camera to a MC68HC11? Even for still frames? Any info would be appreciated! Thanks -Mike (24 years ago, 13-Aug-00, to lugnet.robotics.handyboard)
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| | More download trouble w/Windows 2000 on notebook
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I was overly optimistic when I thought getting the pcode interpreter downloaded via dl was most of the solution. Now I get IC errors. e.g. trying to load a hello world program gives errors like Initializing interrupts Board sync error: looking for (...) (24 years ago, 12-Aug-00, to lugnet.robotics.handyboard)
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| | Re: Download from Notebook on Windows 2000
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Fred, I used dl in full screen mode as you suggested and successfully downloaded the pcode interpreter. I haven't actually tried to load an IC program yet, but at least I'm heading in the right direction. (I forgot your advice about throwing away (...) (24 years ago, 11-Aug-00, to lugnet.robotics.handyboard)
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| | Re: Download from Notebook on Windows 2000
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I don't know why HBDL doesn't work sometimes. Can you try dl.exe. It's part of the stock Interactive C distribution. There are command line switches to tell it to use COM2. You'll have to throw away the PIF file that comes along. Sometimes it works (...) (24 years ago, 11-Aug-00, to lugnet.robotics.handyboard)
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| | Download from Notebook on Windows 2000
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Last year I had a desktop Compac running Windows 95. I used HBDL and never encountered any problems. We now have IBM thinkpads running Windows 2000 and I can't get the downloader to work. I went through the hardware sanity check on the HB pages and (...) (24 years ago, 11-Aug-00, to lugnet.robotics.handyboard)
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| | Re: Comms Board to PC connection.
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yes, see (URL) more. In your message you said: (...) (24 years ago, 11-Aug-00, to lugnet.robotics.handyboard)
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| | Comms Board to PC connection.
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Could somebody confirm whether the comms board can be connected directly to the serial port of the PC (using 25-9 pin adapter is neccesary). I have a HC11 board from Mekatronix which has a comms board the can be plugged directly into the port, is (...) (24 years ago, 11-Aug-00, to lugnet.robotics.handyboard)
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| | re: .wav files
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hi, this doesn't have anything to do with the handyboard but i was hoping someone could help me. does anyway know how to or have a C program that can play .wav files on another computer? any help is appreciated, thanx in advance. C (24 years ago, 10-Aug-00, to lugnet.robotics.handyboard)
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| | ** Handy Board EAR?**
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I built a simple amp using an LM386. I attached an electret condenser mike to it. If I power the device using a 5 V battery I get a CLEAN signal on my osciliscope. If I try to power it using one the Handy Boards analog ports, the signal is (...) (24 years ago, 10-Aug-00, to lugnet.robotics.handyboard)
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| | Octal Latch Burn!
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Hi, I think, that I burn the 74HC373 (octal latch), but before removing the chip I want to test it to be sure that the problem is there. But I don´t know how to test if the latch works fine. Any Ideas? Thanks Daniel Ramirez (24 years ago, 8-Aug-00, to lugnet.robotics.handyboard)
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| | Re: The handy board.
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Dear Jorge, The Handy board printed circuit artwork can be downloaded from: (URL) can also buy blank PCBs from www.douglas.com. Fred In your message you said: (...) ve to make a project with it. (...) (24 years ago, 7-Aug-00, to lugnet.robotics.handyboard)
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| | *Handy Board hearing?*
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Hi, I am working with the Handy Board and I have an audio circuit I want to add to an analog port , How could I program the handy Board to sample the sound and then listen for that sound? Any ideas would be helpful. Thanks -Mike (24 years ago, 6-Aug-00, to lugnet.robotics.handyboard)
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| | The handy board.
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Hello. I am student of UNAM in Mexico City. If its possible, can you give me the printed circuit of the handy board. I have to make a project with it. What is the program you use for program the hc11? I am using the hc11e1 for many homeworks in my (...) (24 years ago, 5-Aug-00, to lugnet.robotics.handyboard)
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| | Re: cool sounds
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hi all, i'm looking for funny and cool wav files to input into my robot. does anybody have any to give me? thanx in advance (24 years ago, 5-Aug-00, to lugnet.robotics.handyboard)
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| | Vector 2x and expansion board
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Hi all, I am ready to connect my vector 2x to the handy board/expansion board. I have already installed the sonar. In reading all of the past posts, no clear answer seems to be present regarding how to get the thing working IN THIS CONFIGURATION. (...) (24 years ago, 4-Aug-00, to lugnet.robotics.handyboard)
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| | RE: Problem while building HB's I/C board
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someone will correct me if I'm wrong but aren't those led's special low power ones? will 'a similar one from radio shack' work in this application or does it have to be the same part number as specified in the parts list? -patrick -----Original (...) (24 years ago, 1-Aug-00, to lugnet.robotics.handyboard)
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| | Re: GP2D02 - problems?
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No, the GPD02 value is never zero. Here is a table with my readings and the corresponding distance. distance value in cm 110 68 100 70 90 71 80 72 75 74 70 75 65 76 60 79 55 81 50 83 45 87 40 91 35 97 30 106 25 117 20 135 15 167 10 233 This values (...) (24 years ago, 1-Aug-00, to lugnet.robotics.handyboard)
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| | Problem while building HB's I/C board
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Hi, I'm building my HB's Interface/Charger circuit. My problem is in the serial circuit. I built it and it passed the test only once. After that somehow my power led didn't work anymore and voltage regulator gets very hot (although it passed the (...) (24 years ago, 1-Aug-00, to lugnet.robotics.handyboard)
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| | Both leds red and green on ?
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Hi , when I run modified servos from the motor ports both leds light in fwd and in rev at the same time either when the robot is moving fwd or reverse? How can I correct this? It works correctly with lego motors? Why not with the servo? Thanks (...) (24 years ago, 24-Jul-00, to lugnet.robotics.handyboard)
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| | IR Serial comms
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I have recently come across an interesting IC being sold by RS Electronics in the UK. It is an IR transceiver IC which effectively gets connected to a normal serial UART and then just acts as though there was a physical cable in place. The IC does (...) (24 years ago, 21-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Encoder routines
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I can offer some input on this, as I have used both the Rug Warrior approach and the Handy Board approach that you describe. As far as which method has an advantage over the other is probably a qualitative assessment that is application driven, and (...) (24 years ago, 20-Jul-00, to lugnet.robotics.handyboard)
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| | Encoder routines
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I've looked at the shaft encoder routines and it seems to be getting the encoder voltage at certain times and using that to keep track of ticks. In the past I have used an input capture to keep track of ticks. Is there a certain advantage of one (...) (24 years ago, 20-Jul-00, to lugnet.robotics.handyboard)
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| | GP2D02 - problems?
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Hi all, I used Gary Livicks routine in connection with the GP2D02 Sensor. When there is no obstacle in front of the sensor the LDC shows: "range is 77". Is that normal. Shouldn't the LCD display zero? If it is normal can you say me why? Thank you (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Handboard exp.
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Hi, I believe an earlier post indicated that, since the analog inputs on the expansion board are multiplexed to the analog input 0 on the HB, if you cut the trace on analog port 0, the expansion board analog ports will all be "pull-up (...) (24 years ago, 20-Jul-00, to lugnet.robotics.handyboard)
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| | GP2D12 on expansion board
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Hi all, I am using three GP2D12 on the expansion board. When I connect them (after removing the analogue port 1 resistor and put the GP2D12 on port 24-26) I experience some weird problem. It seems the there is a short-circuit somewhere. I notice (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | short-circuit?
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Hi, This past few days, I notice my board uses up the battery very quickly (may be because I use servos). Then I notice that the voltage regulator at U13 heats up very quickly. I was wondering if I short-circuit somewhere. I didn't build the board, (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | Re: What is a bobbin(sp)?
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(...) is it a cylinder (about the size of 2x2) with thin wall sides? (what a lego description!) then, it is an accessory for a sewing machine that holds the thread for the backstitch. older ones are metal; newer ones are plastic. later ~ craig~ (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | Re: What is a bobbin(sp)?
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Isn't a bobbin part of a sewing machine? I distinctly remember it being the thing underneath the needle that you needed to load with thread to make the whole thing work. Aha, a look at websters gives me the following definition: 5. (Elec.) A (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | RP: GP2D12 on port 28, 29, 30
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Hi. Sorry if this is a repost. I don't think I was able to post this message last time. I am thinking about putting three GP2D12 sensors on port 28, 29, 30 (because I am not thinking about using Lego Sensor, and I really like other analogue ports (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
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| | RP: What is a bobbin(sp)?
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Hi. Sorry if this is a repost. I don't think I was able to post this message last time. This is a silly question: What is a bobbin(sp)? I tried to find its function on-line or in textbooks, but I couldn't find much. A friend gave me a box filled (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
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| | RP: GP2D12 on port 28, 29, 30
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Hi. Sorry if this is a repost. I don't think I was able to post this message last time. I am thinking about putting three GP2D12 sensors on port 28, 29, 30 (because I am not thinking about using Lego Sensor, and I really like other analogue ports (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
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| | 470uF Capacitor (C3)
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Just a quick question, how important to the poser supply of the HB is the 470uF axial electrolytic capacitor ?. I made the mistake of getting a 64V version thinking that this would be ok and as it is installed under the LCD the rather large cap that (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
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| | GP2D12 on port 28, 29, 30
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Hi, I am thinking about putting three GP2D12 sensors on port 28, 29, 30 (because I am not thinking about using Lego Sensor, and I really like other analogue ports with the 1K pull-up resistors). Has anyone done it? Or is it a bad idea to uses these (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
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| | Cabling concerns
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I am putting together a somewhat modular robot: The main controller and batteries are to be connected to peripheral motors (and controller) via cable-- around 5 feet distance. I'm looking for a connection cable that has enough pins for my data and (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
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| | What is a bobbin(sp)?
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This is a silly question: What is a bobbin(sp)? I tried to find its function on-line or in textbooks, but I couldn't find much. A friend gave me a box filled with robot parts, including these things call bobbin. What are they? -- Ray (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
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| | PWM decoding
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Has any body used the HB to decode the PWM signals from a radio control receiver ?. I'm not sure if it can be done (I haven't looked that deeply into it yet) but I am construction a six legged walker with the twelve servos being controlled by a (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
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| | IR Sensor Hack
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I wrote the following email to Mekatronix regarding the sensor hack to convert Sharp GP1U58X or Y sensors to IR range finder sensors. The pdf documentation currently on their website just shows how to solder onto a trace within the sensor to give an (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
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| | Handboard exp.
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Hi I have a small problem, I want to connect three sharp gp2d12s to the expansion board and I know I cant cut traces 0,1 and the gp2d12s need the pullups removed to operate correctly. How do I use them on the expansion board? Any help would be (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
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| | Re: HB power drain
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My board draws .068 amps when idle. MLB (...) (24 years ago, 15-Jul-00, to lugnet.robotics.handyboard)
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| | Re: IR (formally 6.8nF cap)
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yes, a variance of 1 kHz in the carrier frequency makes no difference at all to these sensors. f. In your message you said: (...) (24 years ago, 14-Jul-00, to lugnet.robotics.handyboard)
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| | HB power drain
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Does anybody know what sort of power drain the HB has when it is not driving any outputs (servos or motors) ?. The reason I ask is that I am thinking of having a rechargable 9v PP3 battery connected as a reserve battery so that when the main battery (...) (24 years ago, 14-Jul-00, to lugnet.robotics.handyboard)
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| | Re: IR (formally 6.8nF cap)
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So as the 39KHz value would be ok for either the IS1U60 (38KHz) or the hacked sensors (40KHz), will my idea for the hacked IR sensor distance measurement using the IR output circuitry to drive multiple LEDs also be valid ?. Thanks for the help. John (...) (24 years ago, 14-Jul-00, to lugnet.robotics.handyboard)
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| | Pins to connect for stacking h bridges
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Hello all, I have built a robot before, and sold it, and had stacked H-Bridge chips. I had also fed in an alternate battery source. I want to do this again and can't remember which pin to use for pos battery terminal (pin # please). I am not an (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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