 | | Re: TI SN754410
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(...) There is nothing wrong with using fuses (or circuit breakers) on motor circuits. This can protect the chips, AND the motor. (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | TI SN754410
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Hi, this must have been asked before. But where can I get the TI SN754410 from On-line ordering if possible or a UK supplier. I managed burn one out on my Handy Board at the weekend :o( is there a way to protect these chips from motors that take too (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | RE: HB and Acceleration
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Hi Philsky; I've seen videos of some of these "serious amateur" rocket launches, and from that I would say acceleration is your prime concern, followed by shock and vibration. I'm assuming you will substitute a lightweight 9V lithium battery for the (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: HB and Acceleration
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(...) Most likely not, Max, unless I save up a lot of money and get a daVinci organizer or something like that and write up a donwlink program... :-) There's this thing here in Wisconsin (And in Michigan and Iowa) called "Rockets for Schools" It (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | cant control motor speed
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dear fred and readers my motors is 30V. i am using the external batteries as instructed on the website. but i cant control the motor speed using the command: motor(0,...) i then remove the external batts and supply power to the other power pts(top (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | DL problems
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I put together the HB shortly after it first became available. This is key because it worked-downloading and all. I put it down for a year because of family problems but all that time left it plugged in because of the Ni-cad. I feel that should (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Motor Ports
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Hi all, Is it possible to add more motor ports to the handy board by simply copying the existing motor drive circuit and putting them on the expansion header where the extra chip select lines are. if so what changes would be needed to make IC (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | motor ports
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Hi all, Is it possible to add more motor ports to the handy board by simply copying the existing motor drive circuit and putting them on the expansion header where the extra chip select lines are. if so what changes would be needed to make IC (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Expansion board motor outs???
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I just wanted to verify something before I went and purchased the expansion board. Are the HB's motor outputs still available when using the expansion board. It is unclear in the doc. Thanks, Aaron (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Wireless Handyboard Link ?
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Hello, I am investigating createing a wireless serial link between my PC and handyboard. The cheapest solution I've found is the RF module from Lynxmotion. Does anyone have any experience with this, or perhaps suggestions for simpler or more (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: HB and Acceleration
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(...) I presume that you are not planning on using my infrared control software! Good luck in your project, it sounds like fun. Wanna tell us more about it? /Max (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | HB and Acceleration
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Hello, Does anyone here know how acceleration will affect the operaion of a handyboard, and also will sudden changes in altitude (like, 3,000 feet in less than ten seconds) affect it's operation? I have a High Power Rocketry launch coming up in May, (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Wireless Handyboard Link ?
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-----Original Message----- From: Aaron Edsinger <aarone@sirius.com> To: handy <handyboard@media.mit.edu> Date: Sunday, January 10, 1999 1:04 PM Subject: Wireless Handyboard Link ? Hello, I am investigating createing a wireless serial link between (...) (26 years ago, 10-Jan-99, to lugnet.robotics.handyboard)
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| | Re: buying IS1U60, DS1233-10 in germany
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a reseller for the IS1U60 is RS rs-gmbh@rs-components.com FAX 06105/401-100 Hessenring 13b 64546 Mörfelden-Walldorf a reseller for the DS1233-10 is FARNELL FAX 089/6135901 Grünwalder Weg 30 82041 Deisenhofen bei München I hope it helps ... SR. (26 years ago, 10-Jan-99, to lugnet.robotics.handyboard)
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| | buying IS1U60, DS1233-10 in germany
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Does someone know a reseller in germany who sell the IS1U60 and/or the DS1233-10 (just one of each) ? thanks for reply (26 years ago, 10-Jan-99, to lugnet.robotics.handyboard)
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| | Failure to Boot Up
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I recently purchased the Handy Board 1.2 and am running the HC11E1FN. I also purchased the IC compiler from Newton Research Labs. Everything worked great. I hooked up a hobby servo to PA7 and it ran well with the supplied c routines. However, after (...) (26 years ago, 9-Jan-99, to lugnet.robotics.handyboard)
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| | Re: A newbie question
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if your robot is not allowed to even partially cross the duct tape, you must have an additional inner marking that the robot can see so it knows it's near the "danger zone" and can change direction. f. (...) (26 years ago, 9-Jan-99, to lugnet.robotics.handyboard)
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| | Re: supplier for Sharp IS1U60 infrared demodulator
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All- Ok, I'll re-phrase..... Does anyone have the name and supplier of a substitute (for the Sharp IS1U60 infrared demodulator) that they have gotten to work reliably? Thanks. Steve (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | A newbie question
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I want to program my HB so that my robot will be able to navigate around obstacles. The navigation area is a rectangular area boarded by a silver duct tape. My robot shall not touch the tape. Does anyone have any idea of how I can implement this? (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Timing 12 servos with the HB could be done. So far we are using 8 servos which don't use much cpu resources at all. But 1 compare output can only time 8 servos because of the servos timing requierments without using a lot of cpu time. So a second (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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