 | | HB and V8600 module??
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I'm having trouble interfacing theRC Systems' V8600 text-to-speech module via its TTL serial connections and the HB w/exp brd using just one output pin and signal ground to send text to the V8600 (at 9600 or 2400 baud). I modified the Fred's (...) (26 years ago, 13-Feb-99, to lugnet.robotics.handyboard)
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| | Re: parts
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You could try (URL) or (URL) for reasonably priced LCD's and an assortment of other parts. I'm sure that there is a host of other places too. (...) -- Ranjit Diol - COMPSys Dowagiac,Michigan e-mail: rsdiol@mich.com website: (URL) (26 years ago, 13-Feb-99, to lugnet.robotics.handyboard)
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| | ***sharp GP1U5 IR detector***
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Anyone know if there is a difference between these #s found on two different detectors? gp1u5 81x and gp1u5 2x? I dont think there is any difference but?... Also, How could these be wired to individually to say, light an led that would be a (...) (26 years ago, 13-Feb-99, to lugnet.robotics.handyboard)
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| | parts
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Hi, could someone please direct me to the right place to find the Hitachi LCD as well as the Dallas Semiconductors voltage monitor and the infrared demodulator. Marshall has the LCD for 15 dollars and the IR demod. for just over 3, are these good (...) (26 years ago, 13-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board questions
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(...) Hi Clancy, Sounds like your HB has a full height crystal. I think a half height one is in the specs, if you're worried about it switch it with a shorter version. You could also use a ceramic resonator, they're shorter than the crystal. (...) I (...) (26 years ago, 13-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Robot base
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This is why "economy" robot base builders go broke. I'm not picking on Phil here, I'm using his message to make a point that a lot of people miss ... Phil here built a base with one of a kind (aka surplus) parts, didn't charge for his own labor and (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Expansion board questions
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I just finished my expansion board kit, it went together quite nicely (thanks to everyone who gave me advice on its construction) but it doesn't seat all the way down on the Handy Board because it hits the crystal which protrudes above the the other (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Apologies about battery charger!!!
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Sorry, I totally missed the question in the FAQ about this....Don't ask me how. I'll try these steps first then return here if I have problems. James (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Battery Charger
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Hello everyone, I have just recently received the Handyboard, and everything seems to be working fine with the power adapter. However, I am slightly confused by the charging mechanism for the board. When I connect the 8 AA Nickel-Cadmium batteries (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | ANN: fire-fighting robot contest at Penn State (3-27)
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Hi All, On Saturday, March 27, 1999, Penn State Abington College, Abington, PA (Phila., PA (USA) region) will host a Fire-Fighting Robot Contest based on the rules of the International Fire-Fighting Robot Contest held annually at Trinity College. (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Robot base
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I built a base for $50, including tools. It was made out of L-channel metal girder. It had 2 drive motors, bought surplus, from those kid-cars ($12 apiece). There's a caster as the third wheel ($4), and I have a 12v 4a battery ($10) plus metal ($10) (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Robot base
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Don't do it. Unfortunately the volumes of robot building do not support building and selling robot bases, the base price for a "good" robot base ends up being about $500 list. The reasons are manyfold, but I'll enumerate some of them here so that (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Handy Board in Popular Science
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The Handy Board is part of a robot design in Popular Science magazine. Someone designed a worm-like robot using the handy board. It is the march 1999 issue. -Peter ---...--- Peter Eacmen Boston Latin School babylongod@usa.net knowledge is power (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Robot base
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Hi er...um...whoever you are, Here's my profile and feedback: Me: 30's database programmer with a little electronics kit construction experience. Interests: Learning Robotics Hardware, Software and Theories Goals: To first experiment and learn a (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | NVRAM for the HB
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Hello all, A while ago someone was looking for NVRAM for the HB. I wanted to tell everyone about a new Simtek NVRAM chip I found that isn't battery backed SRAM like the Dallas chips. It contains an EEPROM 'shadow' of the SRAM and transfers the (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Motor Driver Chips
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try here: (URL) - - - Nick - - - (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Motor Driver Chips
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www.acroname.com do them... tone (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Motor Driver Chips
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Greetings all! I was wondering if anyone out here knows of a place that carries the TI SN754410 motor driver chips so that I can upgrade the Handy Boards motor drivers to handle more current. Thank you. -- "Only two things are infinite, the universe (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Robot base
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I bought a "Rising Bird Turbo 7" radio controlled car, ripped out the receiver electronics, hooked up 12 rectifier diodes to the motor and a 1W, 10 ohm resistor to the steering electromagnet and bolted a piece of very light wood to the chassis and (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | Re: IR remote problem
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(...) I have seen this occasionally. As long as it's consistent for each key, I think the best bet is to just assume the data size is the larger of the two with trailing 0's for the shorter one. I can't promise this works though, as I've only had a (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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