 | | 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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| | Re:rug warrior memory
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Mike, My HB does similar things and to fix it I just turn the board of and then on again without leaving ic(shareware v) and it generally sychronises. Joe Martin Email:joema@mpx.com.au ---...--- (...) (27 years ago, 15-Jul-97, to lugnet.robotics.handyboard)
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| | 68hc12?
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I'm currently assemblying a handyboard and came across some literature for Motorola's 68HC12 microcontroller. The one thing that attracted me to it is its built in memory-mapping capabilities. Do people generally find the handboard's 32K limiting? (...) (27 years ago, 14-Jul-97, to lugnet.robotics.handyboard)
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| | rug warrior memory
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config should be set to 0x0c, not 0x0d. let us know if that works. -fred (27 years ago, 14-Jul-97, to lugnet.robotics.handyboard)
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| | rug warrior memory
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I think i am still having trouble with the memory on my home brewed rug warrior board. I am using a 68hc11a1fn chip. I completely rewired it and i am positive it is wired correctly, however i still cant get the pcode to run. It will downlod (...) (27 years ago, 13-Jul-97, to lugnet.robotics.handyboard)
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| | rug warrior board
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I am trying to wire up a rug warrior board, and i think i have thecomputational hardware all set up correctly. I have been over my wiring as best as i can and cant fina a problem. Here is what it is doing. I can download the p code interperter ok, (...) (27 years ago, 11-Jul-97, to lugnet.robotics.handyboard)
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| | enable_cheesy_encoders
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I've tried the enable_cheesy_encoders and it doesn't seem to work for me either. What I get is 0 for the portX_shaft_count all the time. Is this what you're getting? I've looked at the code but I couldn't see why it wouldn't work. Were you or anyone (...) (27 years ago, 11-Jul-97, to lugnet.robotics.handyboard)
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| | Pulse outputs??
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I need help on understanding the motor controller circuit. Looking at the source in the lib_hb librariy it looks like different pulse trains are sent out to increase the average output voltage by poking increasing values of 256 into the rught (...) (27 years ago, 11-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Corrupted or Invalid Pcode?
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James, Thanks for following up. The reason for this behavior should be fairly evident -- there are traces very close to the mounting screw holes. Your metal washers must have shorted them together, affecting wires to the memory. I do mention to use (...) (27 years ago, 11-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Corrupted or Invalid Pcode?
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I've discovered the problem. When I mounted the Handyboard, I used metal standoffs. When the board is mounted, it doesn't work. When it isn't, it does. The solution then I guess is to use nylon washers to isolate the Handyboard from the standoffs. (...) (27 years ago, 11-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Sourcecode of pcode_hb.s19
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(...) go to the Software Resources page ... look for link titled "Interactive C Source". -Fred (27 years ago, 11-Jul-97, to lugnet.robotics.handyboard)
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| | Sourcecode of pcode_hb.s19
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Hi! I'm looking for the source code of pcode_hb.s19 because I like to replace the motor driver source. Do anybody have or know where to find the source code? Thanks tom (27 years ago, 11-Jul-97, to lugnet.robotics.handyboard)
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| | Re: IR connection
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(...) Howdy- I put mine into the analog ports, but not directly- here's how I do it- +Volts o | / R1 \ 47K / \ | "Analog" Out R2 1K | >------\/\/\-------o---...---> | Sensor In --- C1 --- 10uF | | ----- --- - You may discover that you need to alter (...) (27 years ago, 10-Jul-97, to lugnet.robotics.handyboard)
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| | Re: IR connection
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(...) Hi, You should plug the detecvtor into a digital port. (...) (27 years ago, 10-Jul-97, to lugnet.robotics.handyboard)
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| | IR connection
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Hello, I attached a Radio Shack IR emittter / detector to the handyboard to cure my touch sensor faults I'm using the Legobug. The problem is that chair legs fit between the sensors and don't trigger the switches. The IR sensors are mounted on the (...) (27 years ago, 10-Jul-97, to lugnet.robotics.handyboard)
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| | ICB loading problem
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I'm trying to load a short ICB file (compiled using Newton Labs web server). Everytime I try loading it (I am stripping the CR in the file), I get a: Loading timer2a.icb. Fatal internal error: .s19 file was not contiguous What am I doing wrong (I (...) (27 years ago, 10-Jul-97, to lugnet.robotics.handyboard)
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| | Corrupted or Invalid Pcode?
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I have been using the Handyboard successfully for over 6 months. Recently I've decided to mount it on my robot base. After all the dust settled last night, I powered up the Handyboard. Since I put the batteries elsewhere on the robot, I put a keyed (...) (27 years ago, 9-Jul-97, to lugnet.robotics.handyboard)
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| | Problems with my motors
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Hi my handyboard works fine, but i have a big problem with my motors. If i use the "FD(x)" command my motor runs very well. If i use the "motor (x,100)" command my motor haven4t enough power and both led (green + red) flash. It4s a motor from a (...) (27 years ago, 8-Jul-97, to lugnet.robotics.handyboard)
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| | Re: Mars rover
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(...) Well, the wheels are each driven independently by an internal motor. The rocker-bogie suspension is self-evident, but of course it works best if the wheel and motor sit out at the ends of the suspension. That means six motors. (...) I haven't (...) (27 years ago, 8-Jul-97, to lugnet.robotics.handyboard)
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| | RE: Mars rover
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just attack it with legos.... once you figure it out with legos, it's pretty easy... having looked at it my self... i would assume that only one of the wheels (per side) or all are driven, but the suspension system is very simplistic... infact, i (...) (27 years ago, 8-Jul-97, to lugnet.robotics.handyboard)
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| | Mars rover
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Having seen pictures of the Mars rover I am intrigued as to the mechanics of it. Does anyone know of where to get any details of such things as drive system and suspension. I don't have a few million dollars to make one but there may be some useful (...) (27 years ago, 7-Jul-97, to lugnet.robotics.handyboard)
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