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I'm trying to order the handy board headers (J3-4, J6-8, etc). I've got a digi-key part number of ED72xx-ND where xx is the number of pins for the female. Is this correct? There seems to be a wide varity on the male J15, does someone have a part (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Walking robot and change of email
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I've recently bought a Stampbug (6 legged walker) from Milford Instruments ( (URL) ) in the UK and they have a simple 2 legged robot in their catalog. I hope this is of help. John Hatton (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Walking robot and change of email
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They keep falling down:-) Sorry, couldn't resist that. Check out the MIT site. They have a good robotics department. I don't know if it was MIT or not but I say a robot that was developed at one of these institutions that was one-legged and could do (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | Walking robot and change of email
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Hi, I wonder if this is a little off topic, but since I got a Handyboard I would like to use it in a walking robot application. Does anyone have any experience in making 2-legged robots? Hmm.... Umm...and a message for Fred....my email has changed (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | Newbie
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Hi all, I'm new on this board, and just ordered my handyboard. As for hardware , i still have lots of bend-sensors (strain-gages) recovered from old PowerGlove's. If anyone needs these sensors, please email me, I will use them myself on the project (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | hog_processor()
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Could someone tell me how to use the hog_processor(). I want to dedicate the controller to only one task. I tried the following program but it did not go faster than 700HZ. void main() { while(1) { hog_processor(); v_opt = analog(0); /*measure (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | Re: HB Memory...
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(...) Brian, The RAM memory space is divided into two big parts very roughly like this: 0x8000 - about 0xBE00 or so = your "user" program (the C program sent by I-C) 0xBFxx - 0xBFFF = interrupt vector table (immovable!) 0xC000 - 0xFEFF = PCODE.S19 (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Cheap air flow sensor
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(...) Do you happen to know if those changes are linear? Something like this would make a cool replacement for the MAS on the Talon. It uses a series of honeycombs (that form little diamond shapes). Then it measures the number of spinning vortices (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | Re: HB Memory...
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This is what Fred Martin wrote in a earlier message to this mail list. This is the approximate breakdown of the HB memory space. User program object code + user global variables: 16320 bytes available Runtime pcode OS: 7936 bytes Used stack space (...) (26 years ago, 17-Jun-98, to lugnet.robotics.handyboard)
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| | HB Memory...
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Hi all, I sent this message out a few days ago and havent heard from anyone. Can someone help me out? ---...--- When pcode is downloaded to the Handy Board, how much memory space does it take up? I am a little concerned about having enough memory (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Cheap air flow sensor
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(...) Yup. And yup again. Not to mention humidity. It's what makes instrumentation "interesting". Brett Anthony Research Technician School of Engineering and Computer Science California State University, Sacramento e-mail: anthonyb@ecs.csus.edu (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Cheap air flow sensor
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(...) Interesting. But wouldn't the air temperature change the readings? Or would you also use a temp. sensor and adjust your table scaling to take this into account? What about air pressure, same thing? -Paul (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Moder Identification Needed
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I did a search for escap on the internet and nothing came back. Thanks BTW, it took me longer to realize that Motor was spelled wrong than it did for you to respond with the info I needed. Thanks again. Date sent: Tue, 16 Jun 1998 11:32:06 -0400 (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Moder Identification Needed
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That was fast. Thanks Date sent: Tue, 16 Jun 1998 11:32:06 -0400 From: Mike Vande Weghe <vandeweg@nameconnector.com> Organization: Parlance Corporation To: Mike Davis <ipscone@halcyon.com> Copies to: handyboard@media.mit.edu Subject: Re: Moder (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Moder Identification Needed
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Check out (URL) - Mike (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | Moder Identification Needed
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I have a couple of nice motors that I would like to get some info on. They were removed from some medical recording devices. They are very small and have pretty good power. If you try to stop the motor by grabbing the bushing on the shaft, it is (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | RE: Cheap air flow sensor
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The classic small air flow sensor is a hot-wire-anemometer. Just position a short piece of very fine wire in the airflow and normal to it, run a constant current thru it, and measure the voltage change due to the cooling effect of the airflow. Works (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Cheap air flow sensor
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Elektor had published a similar circuit for detecting air leaks. The heated transistor and another transistor acting as temp. sensor were glued together using heatsink compound. You had then to nullify/calibrate a meter at ambient temp. when the (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | Re: handyboard reset vector
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Hi Justin, I believe the previous mail indicates assembly the code rather. This would be the generating the "p code" of the handy board rather than the actual IC code. Regards, -Pandit ---...--- (...) using (...) (26 years ago, 16-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Cheap air flow sensor
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We have used model boat propellers on a ballbearing and on a brass bushing. Keep the bearing or bushing well lubricated for good sensitivity at low air volume (ie: low speed of the propeller). We used the propeller mounted in 1.5 inch and 2 inch PVC (...) (26 years ago, 15-Jun-98, to lugnet.robotics.handyboard)
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