 | | Fuse on motor power cables
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My current robot platform is a hacked toy and does not have ideal motors. I am concerned about toasting my motor driver chips. Can I put a polyswitch fuse in series in the motor lines to protect against this? They don't seem to be polarity (...) (29 years ago, 24-May-96, to lugnet.robotics.handyboard)
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| | Re: Fuse on motor power cables
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(...) All system power, incl. motor pwr, already runs through the existing polyswitch. They're not too fast, so I'm not sure if they'll save you. the motor chips do have over-current protection of their own, though it has been known to fail from (...) (29 years ago, 24-May-96, to lugnet.robotics.handyboard)
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| | Re: pcode, libraries for two servos
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(...) Randy, I'm having trouble making the TOC2 work with Pcode_hb, something trashes the output whether I disable IR-Xmit or not. Do I need a new Pcode in order to divert TOC2 to my own use? I'm treating OC2 the same as I treat OC3, but only OC3 (...) (29 years ago, 25-May-96, to lugnet.robotics.handyboard)
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| | Polaroid 6500
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Hi, I am trying to install the polaroid 6500. I use the schematics I found with the sonar.c file at this site. It doesn't work, I dont understand the Motor power connection why does it have 4 pins ? One motor only uses 3 pins ? I think the sonar (...) (29 years ago, 26-May-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Greetings! I am currently porting ic version 2.860 to the Amiga. I have completed as11, dlm, and written a pre-processor in ANSI C for use with this. The problem I m now having is with ic (main) There are many files #included that did not come in (...) (29 years ago, 28-May-96, to lugnet.robotics.handyboard)
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| | Interfacing PICs and Basic Stamps to Handy
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Since (I think) it is fairly easy to interface the HC11's SPI interface to a PIC/Basic Stamp I & II this is probably easier than creating a custom RS-232 interface. Has anyone done anything like this? Sean R. Cunningham (29 years ago, 28-May-96, to lugnet.robotics.handyboard)
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| | missing source files
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Lyle, Make sure you get the pcode-2.81 tar file in the interactive-c directory on cherupakha. -Fred (...) (29 years ago, 28-May-96, to lugnet.robotics.handyboard)
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| | Re: 15' max measurement
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(...) I just noticed that the Polaroid Specs say that the transducer pulse current is 2 A. 100mA idle. Since it was mentioned previously that the HB's VR is rated for 1 Amp, how would this affect the sonar? Perhaps whatever is left of the 1A (...) (29 years ago, 28-May-96, to lugnet.robotics.handyboard)
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(29 years ago, 30-May-96, to lugnet.robotics.handyboard)
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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 (...) (29 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 (29 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 (...) (29 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 (...) (29 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 (...) (29 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 (...) (29 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | cherupakha is up!
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-Fred (29 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 (...) (29 years ago, 1-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 (...) (29 years ago, 1-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 (...) (29 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 (...) (29 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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