 | | Need Help to solve the algorithm.
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Hello, I really need help to solve the alogrithm in using the HD with interactive C program . Presently. I'm constructing a mobile robot to move within a battle field of 5metres by 5metres. In side the battle filed, the "mines" are visible with (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | Another HandyBoard for sale
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Hi all, I also have a Handyboard for sale, but with a 20x4 display and the IR demodulator. No casing, however. Price is just slightly more at $235, includes shipping. It has a A0 processor. I'm selling it because it's a bit "overpowered" for my (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | Comm problems
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Hi all, I am currently having problems getting my HB to talk with my computer. I am using IC 3.2. Because of time and work pressures I have not been able to play witht my bot for a couple of months. Everything worked fine then. I didn't change (...) (26 years ago, 20-Jul-98, to lugnet.robotics.handyboard)
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| | (Fwd) Extra HB For Sale
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Oops! I had my date set incorrect, on my PC. This was sent out on July 19th not June 10th. ------- Forwarded Message Follows ------- From: "Mike Davis" <ipscone@halcyon.com> To: handyboard@media.mit.edu Date sent: Wed, 10 Jun 1998 08:41:19 -0700 (...) (26 years ago, 19-Jul-98, to lugnet.robotics.handyboard)
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| | Parellel port control
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Has anybody tried using the "delay function, outportb function and inportb function" that comes with Borland C++ 5.01. I am trying to control a set of LEDs conncted to my printer port using a C++ program. My program woudn't compile. The error is (...) (26 years ago, 19-Jul-98, to lugnet.robotics.handyboard)
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| | RE: SPI problems
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Serial libraries are wwriten for Serial port,not for SPI port! Are you needing use the spi like a standard oitput port or like a SPI (synchronus serial port)???? Is the device spi compatiible? If yes, you need the portd to work like a SPI port. if (...) (26 years ago, 19-Jul-98, to lugnet.robotics.handyboard)
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| | beta testers wanted for LEGO MindStorms
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Hi all, LEGO is officially looking for beta testers for their new MindStorms product scheduled to ship this fall. I'm not sure what their selection criteria are, other than that you must live in the States and have Pentium running Windows 95. It's a (...) (26 years ago, 18-Jul-98, to lugnet.robotics.handyboard)
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| | I'm Sorry!
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Sorry that my last message was sent in HTML format. Hopefully, it will not happen again Phil Hahn (26 years ago, 18-Jul-98, to lugnet.robotics.handyboard)
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| | Re: LM20X21A
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(...) Erm... I am just guessing here, but, I don't think it would be unreasonable to suspect that this particular LCD uses the Hitachi LCD chipset that just about every LCD manufacturer utilizes.. and every LCD chip fab'r emulates. HM44780 is it? (...) (26 years ago, 18-Jul-98, to lugnet.robotics.handyboard)
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| | HB Stress Ability
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Hello! Does anyone know how much stress can be put on a HB?? I'm into rocketry and thought about putting it in my rocket that I'm building. I was wondering: Will it work while flying in the air with the increaced G-force and high speeds? Thanks! (...) (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | Handy Board Keeps crashing
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I keep getting errors that there is extra bytes on the stack. I reset the board a couple of times and that does not help. I appreciate any help. Faris (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | Config register 0x3c
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As no one has any insight into why I'm getting a config register value of 0x3c when downloading pcode, I am into speculation mode. To refresh people's memory: All of DL, DLM, and HBDL refuse to download the pcode to my chip, and HBDL reports that my (...) (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Simultaneous Control of Multiple Servos
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That's the way I thought it had to be done. What I was considering was routines that moved each leg the same short distance (for straight line walking). Walking would consist of very short increments of movement. Now, this seems like it would move (...) (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | Gleason Reserch
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Do you know what is going on with Gleason Research ??. Thay are not responding the e-mail !! Ricardo Barrenechea rbarre@cis.com.ar (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | RE: Simultaneous Control of Multiple Servos
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I have included site addresses that I have found useful. (URL) Maker of the Hexapod robot using a buffer of sorts (D-type latches) for simultaneous control. Definitely worth a look, he's put a lot of information into this site. (URL) Creator of (...) (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Simultaneous Control of Multiple Servos
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I would suggest that just getting a walking robot to walk with coodination and then being able to turn in place and in an arc will be challenging enough to begin with. Just adding enough intelligence to adapt to rough terrain and the change gaits (...) (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Simultaneous Control of Multiple Servos
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You are correct to assume that all legs should be in sync with each other and that all the legs on the ground should be moving at the same rate in the same direction to move straight (sometimes you don't want to move straight!). BUT now think of the (...) (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | Simultaneous Control of Multiple Servos
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I have asked this before and not received much regarding this question. So, here goes again. In building a walking robot, how important is it to control the motion of all legs simultaneously? Seems like that pulsing one at a time creates the (...) (26 years ago, 17-Jul-98, to lugnet.robotics.handyboard)
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| | SPI problems
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I am trying to connect my Handyboard with a Motorola 68HC11A1FN chip inside with a AD7858L- 12-bit ADC. In my IC code I first write to the DDRD (Port D Data Direction Register) ($1009) and activate SCK(bit4), MOSI(bit3), MISO(bit2). Then I write to (...) (26 years ago, 16-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Handyboard/RWP without p-code
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Hi I suggest that you contact ImageCraft. (URL) or info@imagecraft.com They have a C compiler for 68HC11 CPU's that will do what you want, including a library for the HandyBoard (see attached e-mail) ! I have no affiliation with ImageCraft (other (...) (26 years ago, 16-Jul-98, to lugnet.robotics.handyboard)
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