 | | 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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| | [Fwd: Scotchflex]
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(...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | RE: Robot base
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I personally like building my own bases. I don't know about anyone else but I find it more of an achievement if I build everything that went into my robot. -Peter (...) group for quite a while now and I did notice that there seems to be a lack of (...) (26 years ago, 12-Feb-99, to lugnet.robotics.handyboard)
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| | re: RE
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hi all, my take on the email format issue is that nearly everything should be handled on the client side. in other words, write your filters to deal with the "re's"; figure out that mail is from the handy board list by searching for (...) (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Large circuit construction - How?
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I was going to suggest Scotchflex, but I've always gotten it from a university stockroom. I haven't been able to find it in any of the catalogs I have. Does anyone know any suppliers, besides going to 3M directly? -Scott (...) (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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| | Robot base
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Hi I have been following this mailing list and the comp.robotics.misc news group for quite a while now and I did notice that there seems to be a lack of good quality and reasonably priced robot bases. All the ones I saw where way overpriced or way (...) (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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| | is there a place where I can find programs for handyboard?
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Hi, I want to know where I can find programs written to make a wandering robot with the HB, also any other programs to do other things related to robotics. Thanks -Mike (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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| | IR remote problem
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I picked up a surplus remote control at Halted Specialties ((URL) and am trying to use Max Davies' IRINT.ICB, IR.C and TEST.C, and I'm not having any luck. I'm seeing two main problems. 1) Some keys give 35 bits of data, and some give 38 bits. 2) (...) (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Subject headers
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(...) On the contrary, I have numerous email come in and, therefore, cannot take the time to read the all. This helps me to quickly determine if it is a new subject to address or not. Scott Sherman IT Spec. II ACS SCSU (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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| | RE: Expansion board assembly tips?
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Before you do anything else, I would suggest cut to length the male headers which interconnect with the HandyBoard, and plug them into the appropriate sockets on the HB. Note that the mating pins are too long to insert fully into the sockets. This (...) (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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| | Need Help - 68HC11E1/68HC24 and 32K external RAM
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I have a HB w/exp brd and have just acquired a TCOMP PortMaster board (by Ray's Tiny Racers) which I would like to use on a 'robot dispatch base station'. Other than two PWM motor ports it has no other accessories ( ei beeper, IR detect etc.). It (...) (26 years ago, 11-Feb-99, to lugnet.robotics.handyboard)
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