 | | Connecting a Sharp GP1U58Y
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Hi. I'm trying to connect a Sharp GP1U58Y 38KHz IR detector to one of the analog inputs. The problem is that the device outputs a voltage and doesn't seem to be pull down transistor device so the internal 47K pullup seems to be messing it up. Any (...) (27 years ago, 29-Apr-97, to lugnet.robotics.handyboard)
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| | part number for ceramic resonator X1?
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Hi, the parts list for the Handyboard doesn't list a part number for a ceramic resonator, only for an 8mHz crystal. Does anyone know the number for the substitute ceramic resonator? Thanks, Duncan (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | Can't seem to find Sharp IS1U60...
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Hi, I can't locate the Sharp IS1U60 IR demodulator anywhere. Everyone seems to be out of stock or requires a minimum order. Has anyone had any luck getting one of these recently? Thanks, Duncan (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | Learning IC
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Greetings everyone! When it comes to programming in IC, sometimes I think I'm starting to learn something and other times I feel like a complete idiot. I think it's mostly syntax thats killing me. And things like while within a while....and the ! == (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Motor Driver Chips
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The current still goes through the chip. 1 amp max. But now it will get more hot cuz you disipate more power accross the integrated transistors with the higher voltage. I think Fred mentioned that there was a thermal shutdown. (Is this true?) But I (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | RE: 6220-01 Undeliverable message attached
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The attached reply could not be delivered to the following recipients because of incomplete addressing information. Please contact your cc:Mail administrator. *"HandyBoard" <handyboard@media.mit.edu> at SSWGATE (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | RE: 6220-00 COVER MEMO: Undeliverable message attached
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---...--- ---...--- Soft-Switch Cover Memo ---...--- ---...--- Date: 04/28/97 Time: 10:01 Distribution ID : CCMAIL.EMAR.6220 ---...--- -- The items described below were sent as separate distributions: -- ---...--- ---...--- (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | (no subject)
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(...) R> Before I purchase the $50 vector 2X compass, I want to know if it R> is compatible with the version 1.2 handyboard. I would also like Yes it is. R> to know how many handyboards ports are needed to interface with R> the vector 2X compass. If (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | Motor Driver Chips
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With external batteries driving the motor outputs(12V), does one have to worry about the 1amp rule of the driver chips, or can the chips still support a loas of 1amp before gong haywire? Sincerely, Yoni Garbourg << To succeed, Atificial Intelligence (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | (no subject)
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Before I purchase the $50 vector 2X compass, I want to know if it is compatible with the version 1.2 handyboard. I would also like to know how many handyboards ports are needed to interface with the vector 2X compass. If possible, I would like to (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Sonar problems
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thats the way i have it sorry typed analog when i should have typed digital any other suggestion are more than welcome thank you bryan wiabel offrds2@aol.com (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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Greetings all, This is the periodic reminder on how to be removed from the Handy Board mailing list: Write to me, Fred Martin, fredm@media.mit.edu, and ask. Also, please note that the Media Lab sysadmins changed some internals of the mailing list (...) (27 years ago, 28-Apr-97, to lugnet.robotics.handyboard)
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| | Stuph!
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Hello! I ralize this was already spoke about before, but I've lost all my emails from before 4/20/97, due to a crash with my Eudora program, but could anyone tell me on personal experiances on getting the handyboard top talk? and links to suppliers? (...) (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Re: HB connectors
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I have seen them at active electronics in Woburn... -Jeremy (...) jag@world.std.com jag@brownout.com (URL) mailto:jag@brownout.com (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Re: digital output?
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Use the SPI bus. Look at the HB HP FAQ for details. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and (...) (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Sonar problems
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Digital Port 0 <- ECHO ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Communication problem
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This drove me nuts, I tried DL and HBDL both gave me numerous different error messages. I finally told win95 to shutdown and restart in MSDOS mode. Then using the DL program, everything now works correctly. It is quite a rush to finally see the (...) (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | UNSUBSCRIBE
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UNSUBSCRIBE (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | input capture interrupts?
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I would like to use the PortA input capture interrupts. Has anyone succeeded in writting code using Interactive C that accomplishes this? If so could you post or send me some sample code? Thanks Raj (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | digital output?
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I need four digital outputs to signal external circuitry. What's the best method? I would prefer something that does not require any additional address decoders or anything. Raj (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Re: DS1820 sensors?
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(...) ftp://ftp.cmf.nrl.na...lib.tar.gz Fairly-well commented source code is included (and sample C code that will do the nutty protocol to discover all 1-wire devices). It's for a different type of assembler, but you should be able to get the idea. (...) (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | DS1820 sensors?
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Has anyone been able to interface the DS1820 temp sensor (or any other 1-wire device) to the handyboard/miniboard/whatever? I'm working on a project where it'd be nice if I could figure out how to interface to these devices. (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Sonar problems
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Maybe i'm beating this subject to death, but it's driving me crazy. I've read every post and readme file i can find and my sonar still does not work. 6500 hb pin 1 gnd pin 4 pin 9 motor driver socket ( ic removed) pin 7 analog port 0 (marked 7 on (...) (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | DC motor and Shaft encoder to recommend...
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Hi, Can anyone recommend any good DC motor and shaft encoder suitable for handyboard. Thanks... Johnny. (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Re: HB connectors
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Yoni Garbourg wrote: Anyone knows a generic store name that sells those male headers that make connectioins for the HB. I need them right now, so DigiKey is not good enough. Radio Schack does not seem to have them. Sincerely, Yoni Garbourg << To (...) (27 years ago, 27-Apr-97, to lugnet.robotics.handyboard)
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| | Re: Using analog ports as digital
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(...) The way it really works is that if the analog value is 255 then it returns 0 other wise it returns 1. So you can modify the lib_hb.c file and change the constant, or use the analog() call on the pin. --Chuck (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | IC compatibility with PowerBook 520
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Fred, Your suggestion worked. Appletalk WAS on and inactivating it solved the problem. Thanks a lot. Sincerely, Yoni Garbourg << To succeed, Atificial Intelligence needs 1.7 Einsteins, two Maxwells, five Faradays, and .3 Manhattan Projects." >> (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Using analog ports as digital
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The HB manual says that if you us the digital command on an analog port, the result is true if analog measurement is <127, and false for analog>127. I tried this and it does not seem to work that way. I get true for 0<analog<255, basically (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Micromouse...
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Hi, Have anyone used the handyboard before to design a micromouse? If anyone have, please let me know....Thanks... Johnny. (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | (no subject)
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(...) This is normal, the transistors in the motor chips lose a couple of volts. (...) Probably you are driving too much current through the motor chips, they overheat, shut down, cool off, and recycle. Get a meter with a 2A scale and put it in (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Re: error with freeware DL under Windows 95
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The recommended downloader when running Windows 95 is HBDL.EXE, *not* DL.EXE. HBDL is available from the HB Software Resources page. (This is pretty clearly stated in the HB Tech Ref... if you don't have a copy you should get it, from the HB Tech (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Re: HB connectors
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Try calling You-Do-It Electronics in Needham MA. -Fred In your message you said: (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Re: HB connectors
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(...) Digikey will ship FedEx the same day so in less time than it takes for this email to hit the list and be responded to you could be soldering your connectors. Of course you will have paid $15 for them so patience has some virtue :-). Any (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | error with freeware DL under Windows 95
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(...) Be sure to run DL in full-screen mode. (One problem with the old, freeware IC and DL is that they will lose communication sporadically under Windows 95 unless you run them in full-screen mode.) -- Randy ---...--- Randy Sargent Newton Research (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Re: HB connectors
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There are probably local electronics stores in your area that do have them. I know of several chains in the Iowa/Illinois region that do, including Warren Electronics in Davenport, which has almost anything you could wish for (well, it had (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Communication problem
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I have just attempted to communicate to the handy board and am receiving the following error: Expected 56, received 141, after 64 chars received Perhaps the board was not connected properly or not in download mode. I built the board myself and (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | How much current for IR Transmitter can support ?
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Hi, Any one know how much the IR transmiter on HB can supports through the Q1 transister ? Thank you in advance, -Pandit (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | HB connectors
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Anyone knows a generic store name that sells those male headers that make connectioins for the HB. I need them right now, so DigiKey is not good enough. Radio Schack does not seem to have them. Sincerely, Yoni Garbourg << To succeed, Atificial (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | DC Motor and Battery question
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I am working on a robot using 12V Barber Coleman geared motors. I have followed the instructions on connectingan external battery to the HB. I have about 15V worth of "C" Alkaline batteries connected in series and into the HB. The motors show they (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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| | Question on Kent Farnsworth's IR routine?
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On the Handyboard software archive, Kent has the following port definitions in the file HB2_EQ.ASM: * equates for Sharp IR sensors -- start at port 4 IR_MASK_ZERO EQU %00000100 IR_ADDR_ZERO EQU $1000 /* port A */ IR_MASK_ONE EQU %00100000 (...) (27 years ago, 26-Apr-97, to lugnet.robotics.handyboard)
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