 | | 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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