 | | 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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| | Re: L293 Questions
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warm is normal, burn your fingers hot is not. jm (...) (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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| | Re: HB problem
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You need a 12V adapter and if both PWR and Batt are not OFF you are not in download mode. jm (...) should I > increase or decrease the voltage (...) (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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| | L293 Questions
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Hi all! Just for being sure: Is it normal that the L293Ds become warm when drawing ~0.5A for an extended period? Thanks, Jan (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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| | HB problems
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I have a problem: When I am trying to download the pcode_hb.s19 file a (...) I am using an adaptor providing 9V is that enough or should I increase or decrease the voltage When I provide the voltage on the HB pressing the STOP button the yellow (...) (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Download problems
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Usually, PC has two external serial ports (DB9 and DB25). The DB9 usually used by your mouse, and DB25 is connected to the external modem. The HB should be connected to DB25 in place of external modem, and it is usually configured as COM2. Another (...) (27 years ago, 31-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Download problems
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Did you put the HB in download mode: power up while holding down the stop button? What box do you have? A Dell? I know of an issue with older Dell com ports. just guessin', jm (...) (27 years ago, 30-Aug-97, to lugnet.robotics.handyboard)
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| | Download problems
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Hello I just wanted to say that I have got the HB from Hong Kong two weeks ago but I didn't reply due to the fact that I had problems with my monitor Now that my computer works I am trying to see if the HB is working I have a problem: When I am (...) (27 years ago, 30-Aug-97, to lugnet.robotics.handyboard)
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| | HB IR transmit circuitry problem
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I just finished building my Handy Board and I was testing the IR transmit circuitry. I found that the oscillator was actually oscillating @ 57kHz instead of 39-41kHz. That makes it useless for now! I made sure to get the exact capacitor and resistor (...) (27 years ago, 30-Aug-97, to lugnet.robotics.handyboard)
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| | Re: IC version 3.1
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(...) Yes, the freeware MS-DOS/Windows tools have been known to have problems on some new/fast PCs. It all has to do with old serial drivers. Newton Labs stands behind the commercial product. I recommend that you try it. -Fred -- This message was (...) (27 years ago, 29-Aug-97, to lugnet.robotics.handyboard)
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| | IC version 3.1
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It has recently come to my attention that IC version 3.1 has been released. I have been using (actually struggling with) the earlier version that came with my purchase of an assembled Handyboard from Gleason Research. Does the new version work (...) (27 years ago, 29-Aug-97, to lugnet.robotics.handyboard)
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