 | | Re: Yup, it works.
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I didn't have any problems with the LED's - mine came with a short lead and that always went into the square pad. I imagine I missed the C15 and C16 errors (tantalum vs electrolytic) because I bought a kit and just took the parts out of the packages (...) (28 years ago, 4-Jun-96, to lugnet.robotics.handyboard)
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| | Success, sorta!
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My long-sought goal of bringing in 2 RC signals to the IC3 and IC2 counters, and sending them out via OC3 and OC2 was not achieved. I was never able to get OC2 to work, and I suspect I need new Pcode like what Randy Sargent wrote to use the buzzer (...) (28 years ago, 3-Jun-96, to lugnet.robotics.handyboard)
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| | Adapting the LMD18200
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Over the weekend I decided to use the LMD18200 H-Bridge devices for a larger robot I am building. What I did was simply remove the L293 chip and replace it with a 16pin header and some rainbow ribbon cable. Before you decide this is for you, here (...) (28 years ago, 3-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Yup, it works.
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(...) I really tried hard to make this clear -- can you explain the difficulty you had? (...) Yup, you are right. You are either the first person to notice this, or the first to report it! (...) Quiescent RS-232 levels are -10v, so the minus voltage (...) (28 years ago, 3-Jun-96, to lugnet.robotics.handyboard)
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| | Yup, it works.
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Well after much delay, I've finally got my first HandyBoard up and running. (I've got another one in parts, but that is a different story) I can confirm that HBDL.exe does *NOT* work on my 133Mhz Pentium under Windows '95. It does work on my 486/33 (...) (28 years ago, 3-Jun-96, to lugnet.robotics.handyboard)
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| | motors
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HI, Can anyone tell me where to get some good motors that are more powerfull than the LEGO 9V motor but can be implemented into the LEGO's? I want to use the LEGO kit with the suspension, front and rear wheel steering and drive, and 4 speed shifting (...) (28 years ago, 3-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Help debugging.
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(...) No, mid-8's are fine. -F (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Help debugging.
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Okay - thanks - you were right - I mis-read the ground location and used pin 7 of the MAX232 instead of using pin 7 of J9. The chip is getting 5 volt range, but the negative voltages are in the mid-8 range - is this something to worry about? thanks (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Help debugging.
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(...) which pin were you using as ground reference? Maybe redo your test using pin 15 of the Maxim as ground. First check the Maxim is getting good power and ground (pin 15 is ground, pin 16 is +5). Then re-check the voltages on pin 2 (should be +9 (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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| | Help debugging.
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Well, I didn't get far without running into a bug. In the interface/charger serial circuit, I get 17 volts at pin 2 and I get 0 volts on pin 6. The MAX232 chip is oriented to the right, and all the capacitors have their negative stripes on the left (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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(...) There should be more than that in the archive -- here is what I get: 0 Aug 24 1994:50 1994 pcode-2.81-dist 0 Aug 24 1994:41 1994 pcode-2.81-dist/pcode 17563 Sep 29 1993:42 1993 pcode-2.81-dist/pcode/foo.s19 2209 Sep 29 1993:24 1993 (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Fred, I have FTP'ed pcode-2.81.dist.tar.Z from cher (thanks for getting it back!) within it were the files foo.s19, pcode_rw.s19, lobo.asm, pcode.asm, and some makefiles.. Cool, but the files required for compiling IC 2.81 that I can't find are (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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(...) The FAQ is linked from the main HB web page under the title "the Handy Board FAQ", or directly at: (URL) pcode source is at ftp://cher.media.mit...dist.tar.Z and also (URL) should fix that last link, because you'd never find it unless you knew (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | cherupakha is up!
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-Fred (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Greetings! (...) Stupid Question.. Where is this faq? Web or FTP? I also couldn't find the file pcode_2.81.tar you mentioned last week. I will be porting IC 3.1, but wouldn't mind doing 2.81 while waiting for the 3.1 source. (...) Yes, The HB nicad (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Relationship between voltage and analog()
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(...) The input voltage range is 0 to 5 v, and the output number range is 0 to 255. The relationship is linear, so 2.5v = 128 (for example) (...) to convert from the output # to the voltage, it would be 5v x (output # / 255) so 47 is about 0.92 (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | Relationship between voltage and analog()
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Hello! Would anybody please send me a mail letting me to know the relationship between the output of ananlog() function and the voltage ? For example, if my sensor works under the command "if (analog(0)>47) then ...." What would be the voltage ? Any (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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(...) Yes, see the FAQ for a recently added section on the battery charging system. (...) Yes, this is a good idea if you are separately charging the HB's battery. As you correctly surmise, you don't want the two charging circuits contending with (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | cherupakha is down
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FTPs to cherupakha are temporarily out. I'm working on it. -F (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Greetings! I have just built my first Handy-Board.. Works Great!! I can't decide if I will enjoy writing software or building expansions more, I guess I'll just have to do lots of both before I decide. Two questions. My 'bot has it's own 12 volt (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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