 | | Here's Spazbot based on the handyboard
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I put up a website regarding the robot I built with the handyboard. I'll be designing more sensors for it soon, Spazbot is at nfn.no-ip.com/spazbot (24 years ago, 19-Sep-00, to lugnet.robotics.handyboard)
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| | Hall Effect
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You are going to find that it is not the encoders as I thought also. The HB seems to be incapable of reading correctly. I don't know why, but I have been trying for about 3 months with no/or little success. Someone knows, but no one is telling. I (...) (24 years ago, 18-Sep-00, to lugnet.robotics.handyboard)
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| | Sonar and Compass together on expansion board.
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I am working in adapting a PNI compass to the handyboard. And I have a 6500 sonar board connected to the expansion board, here's my idea: Use a Lithium 3.6V battery to save calibration settings after poweroff M/S is jumper selectable Calibrate is (...) (24 years ago, 17-Sep-00, to lugnet.robotics.handyboard)
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| | Pcode benchmark
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The pcode includes a benchmark primitive to see how well the multitasking environment is functioning. Does anyone know how to access this function? George Musser georgejr@musser.com Share information about yourself, create your own public profile at (...) (24 years ago, 15-Sep-00, to lugnet.robotics.handyboard)
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| | Communication Protocol
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Hi everyone, I'm working on a project that implies the communication of the Handy-Board with a PC computer via the serial port. The person who is in charge of programming the software that will run on the PC asked me what is the communication (...) (24 years ago, 15-Sep-00, to lugnet.robotics.handyboard)
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| | IR transmission
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What value resistor should I put in series with the IR led for transmitting from the hb ?. The red led that is present as an indicator is rated for about 5mA (I think they normally run at about 2-3mA) using a 1K resistor (R5) so should I run the IR (...) (24 years ago, 14-Sep-00, to lugnet.robotics.handyboard)
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| | Got some code for you: Sonar on handy in feet & inches!
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Hi, I wanted to see how to convert the sonar hits into feet in inches. Well as the textbook rule goes it looke like it takes 333.333 ticks = 1 inch round trip. Since the timer is running 2,000,000 counts per second. But in real life I had to fudge (...) (24 years ago, 14-Sep-00, to lugnet.robotics.handyboard)
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| | Hall Effect Encoder = sloppy, going optical
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Well the Quad hall effect switch encoder does not give repeable resolution. If I say 14 ticks = right turn (motors going in opposite direction) well. sometime it is on the money, sometime it's not. And I don't have a racer.. I have it running slow (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Rover based on Hanyboard is evolving well!
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Sure.. hey I thought I replied to the list. Here's the picture so far.. note: lugenet doesn't allow jpeg attachments so You will get the image, lugenet will reject them. I am hoping to put up a webpage soon. I've got a few sensors I am designing (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
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| | **cant use 100 step mtr prgrm wth...
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Hi, I am trying to use the 100 step motor code and a Hb expansion board. I can get either one of them to work ALONE ONLY. So I can only use the expansion board. OR the 100 step pcode, How do I install both so they dont conflict with one another. (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
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| | Problems with microprocesseurs
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Hello, I work with a Handy Board and an other board based on 68hc11E2. The first is master and the second is slave. The SPI communication is OK between 2 boards. The first send the position of servos to the second. At the start, all is OK. After 2 (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Rover based on Hanyboard is evolving well!
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Hi You can only run the counter 4x slower as now. But in this case, the complete HB works 4x times slower, so this isn't a usefull solution. The other possibility is the use the overflow flag and integers. I didn't solve that problem. For more (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
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| | Rover based on Hanyboard is evolving well!
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Hi, I managed to build up a pan & tilt platform for my rover out of Servos, I hot glued them together and built a mount for my ultrasonic transducer out of perfboard. Also you need to make a baffle for the rear of the transducer or you do get (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
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| | RE: Here's the Rover with handyboard
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Please let us out of your list. ---...--- Click here for Free Video!! (URL) Original Message ----- From: T. Gathright <terrygathright@home.com> To: Jerry Normandin <jerrynormandin@ne.m...aone.net>; <handyboard@media.mit.edu> Sent: Monday, September (...) (24 years ago, 12-Sep-00, to lugnet.robotics.handyboard)
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| | Peekword returns an int... can I typecast in Interactive C?
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Hello, my problem is that peekword returns an int. I need a long. Is there a way around this in Interactive C??? (24 years ago, 12-Sep-00, to lugnet.robotics.handyboard)
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| | Interactive C question can you cast an int to a long?
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Hi, I have an interactive C question, I'd like to return this: return peekword(0x1014) - start_time; as a long.. since this is why there's a distance limit in the sonar.c code. Can I return this as a long? (24 years ago, 12-Sep-00, to lugnet.robotics.handyboard)
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| | possibly the way the driver is written limiting sonar range?
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Hi, I was playing with my handyboard's sonar.. The distance limitation is in the code, since we are using integers we are limited to -32,778 to 32,768.. and that's why I am at @15 ft limit. After we change the sonar code to longs the problem is (...) (24 years ago, 12-Sep-00, to lugnet.robotics.handyboard)
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| | Here's the code I wrote so far, any ideas why my Polaroid 6500 has only 15ft range?
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Hi everyone, Here's some code that I have so far. I have no clue why I only get 15' range out of my Polaroid 6500. I did not get the usual fastener that clasps the tranducer into place, could that do it? My tansducer is mounted on "sensor array" (...) (24 years ago, 12-Sep-00, to lugnet.robotics.handyboard)
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| | Polaroid 6500 ranging.. only getting 15ft range!
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Hi, How do you get 35ft range out of the handyboard? I get a negetive number when hitting an object over 15ft away! Does anyone else have this problem? Can I adjust it somehow? Thanks! (24 years ago, 12-Sep-00, to lugnet.robotics.handyboard)
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| | handy board
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Hello, I am in need of some assistance please. I am trying to have a portable omni view digital camera take compressed mjpeg images and send them over a modem connection. To do this I believe I would need a handy board. Another characteristic of it (...) (24 years ago, 12-Sep-00, to lugnet.robotics.handyboard)
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