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I'm able to compile version 2.861 with Kent Farnsworth setup, but not ver 3.1 of the P-code. Has anybody been able to do this? I get a lot of phasing errors when I try. There is a problem with the current LCD initialization routine I would like to (...) (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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| | Re: Serial routines
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[Jodi Seaborn] spake unto the ether: (...) Hi Jodi, the serial input routines (i.e., from some other source to the Handy Board) do work, it's just that the I/O is polled, not interrupt-driven. Thus, unless the device sending characters sends them at (...) (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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| | Re: DC adapter
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Good question. Answer: DO NOT USE REGULATED ADAPTERS WITH THE HANDY BOARD. I will add this to the FAQ, because it is not obvious, but the HB power circuitry was designed explicitly for CHEAPO UNREGULATED WALL WARTS ONLY. sorry, Fred In your message (...) (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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| | DC adapter
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Hi all, Just another (hopefully unanswered) question about the DC adapter: Do the specifications stated in the FAQ (18 volts unconnected) also apply to _regulated_ adapters, or only to unregulated? I'm asking this because I just bought a new (...) (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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I'm able to compile version 2.861 with Kent Farnsworth setup, but not ver 3.1 of the P-code. Has anybody been able to do this? I get a lot of phasing errors when I try. There is a problem with the current LCD initialization routine I would like to (...) (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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| | Re: Suppliers in Germany ?
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Hello, here is a list of suppliers in Germany. It's an Excel-sheet and I've attached it to this mail. I hope you can use this list. If you have any further questions you can send me an e-mail directly. Steffen. (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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| | Serial routines
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Has anyone used Richard Drushel's math and serial libraries with a real serial port? The HB seems to miss about every other character when I use any of the higher level functions. Thanks, Jodi Graf (27 years ago, 4-Sep-97, to lugnet.robotics.handyboard)
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I have write a code for manipulate the LCD in the handy board. Because i can't use a battery backed RAM, i need to write in assembler. Well , i'm really read all the FAQ for LCD and for Handy board (including the apendix B for the 6270) .I'm using (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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German Pablo Gentile German Pablo Gentile Systems Engineer. Electronics Expert. (really??? ;>) ) ggentile@cvtci.com.ar (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | Re:
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(...) Check out Dave Chu's robotics and electronics page @ (URL) has schematics for what you are looking for! Hope this helps. Laz (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | Re: Pic board onto handyboard?
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(...) Hello Michael I might be able to help you out a bit! I think that the toy you are talking about is featured in the March 1996 issue of Electronics Now mag (cover page) It describes how to build a runabout Robot controlled by a Sony compatible (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | motor drivers
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Hi all, I suppose that this is really a Mini Board quesiton, but it involves L293D motor drivers, so here goes. The Mini Board manual says that the MB accepts DC power supply of 6-36V. I was using power ranging from 25-32V to run one, and the L293Ds (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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I have a question to ask I want to use two 16V (maybe a bit more) motors and one 9V the question is To use either an Opto Darlington Isolator that my supervisor knows about, which uses the digital outputs where they are just switches or to cut the (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | Pic board onto handyboard?
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Dear Handyboarders Some time ago I bought a toy that runs off 2 - 1.5 volt batteries. The controller board has a PIC on it, control of the toy was via a TV remote, and it ran two separate motors for the drive train. There is also an on/off switch. (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | Re: IC version 3.1 -- FYI
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FYI IC3.1 is US$33.00 per copy (personal copy, download document), and US$20.00 with any assembled or unassembled kits. It is available in many different platforms. Patrick --00---...--- Low cost MIT Handyboard supplier and Official Distributor of (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | Suppliers in Germany ?
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Hello, since the available HB parts-list only names part-suppliers form the US: does anyone have a list of suppliers (and article numbers) from Germany ? I would appriciate if it could be sent to the mailinglist (or directly to me). Thank you , (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | HB IR transmit circuitry problem
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As I mentioned in the previous mail message my IR transmitter on the handy board oscillates @57kHz. I ordered the exact parts# form digikey as specified in the HB documentation and also did the math. The result should be a freg between 39 -40kHz. (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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| | Re: HB IR transmit circuitry problem
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what value are you using for the R4 resistor? There was an incorrect value in some of the Handy Board documentation and it might not be fully expunged. Also, are you using a polypropylene capacitor for C6. -Fred -- This message was composed using (...) (27 years ago, 3-Sep-97, to lugnet.robotics.handyboard)
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I have a question to ask I want to use two 16V (maybe a bit more) motors and one 9V the question is To use either an Opto Darlington Isolator that my supervisor knows about, which uses the digital outputs or to cut the trace close to the J13 and (...) (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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It worked so thanks everybody It was the voltage it needed 12V Thanks again (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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