 | | Programs
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Hi All, I have just ordered a Handyboard and while i'm lerning IC i was wondering if the programs from the book Mobile Robots will work with the handyboard, my robot is configured similar to Rugwarrior,i.e. three bump an two IR proximity (...) (27 years ago, 6-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Sonar
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(...) Each diode loses 0.6v. The string of them drops the HB battery down from 9.6v to 6.0v, which is the specified operating voltage of the sonar unit. You can probably substitute 1N4001s. Fred (27 years ago, 6-Feb-98, to lugnet.robotics.handyboard)
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| | Re: encoder function
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Hi all I have written some routines to measure frequencies from 30Hz to 30kHz. I'm posting this with an attachement because several people have ask me already for these routines. To Fred: You can add these routines to the ftp server or anywhere on (...) (27 years ago, 6-Feb-98, to lugnet.robotics.handyboard)
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| | Sonar
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Has anyone used the diagrams off the HB wesite for connecting the 6500 sonar. If so, could someone please tell an ignorant CS major, what the six diodes are for, and if anything else can be substituted for them. My local Radio Crack seems to be out (...) (27 years ago, 6-Feb-98, to lugnet.robotics.handyboard)
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| | analog input test
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Fred; I am at the testanalogs portion of the assembly process. All has gone well up until this point. The knob varies between 0 and 255 as expected and the seven numbers all come up either 254 or 255 when I press the START button. However I am (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Modem Cable
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It is straight-thru. Please note that if you are connecting from a 9-pin male PC port to the HB interface's 25-pin female, the means that you have the following mapping: DB-9 DB-25 2 3 3 2 5 7 In other words, the same cable as you would use to (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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| | encoder function
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The encoder function pages say that for the fast encoder, the refresh rate is only 1 KHz. That is it can make only 1000 increments in a second. If I have an encoder that has a change rate on the order of a micro second, is there any reasonable way (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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| | Modem Cable
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The "modem cable" used to connect the computer to the serial interface/charger: Is this a "null modem" cable with the transmit & receive lines (pins 2 & 3) crossed, or is is a straight pin-to-pin serial cable? Thanks, Brett Anthony Research (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Problems starting IC
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Maarten -- Quickly I can make the guess that your local copy of PCODE_HB.S19 is corrupt. The fact that PCODER22.S19 works indicates there's nothing wrong with your board. Try re-downloading PCODE_HB.S19 from the web site? Fred In your message you (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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| | Problems starting IC
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I'm at the phase of bringing up a handyboard till a point where I have to start IC for the first time (chapter 6.0.5). I did succeed to download the PCODE_HB.S19 code and the board is starting with a beep and the IC startup message. So, that seems (...) (27 years ago, 5-Feb-98, to lugnet.robotics.handyboard)
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