 | | Re: Stepper Motor problems
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I just got the stepper rountine working in my board this weekend. There were some problems initially. I had to replace the cycle_length with the actual number (4). There were also some errors with variable type conversions, for example FAST and SLOW (...) (25 years ago, 15-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Source for TI SN754410
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(...) I went to www.ti.com and got three of them for free. Search around and you'll find that they have samples of some things. I can't remember exactly where, but I found it from the main site. (25 years ago, 14-Jul-99, to lugnet.robotics.handyboard)
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| | Stepper Motor problems
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Hi Again, I've been trying to get two stepper motors to work with my HB, with little success. Firstly the software by Peter Harrison does not seem to compile when I try to load it to the Board. The error is in line 29; " int (...) (25 years ago, 14-Jul-99, to lugnet.robotics.handyboard)
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| | Source for TI SN754410
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Hi All ... Will someone please point me to where I can buy SN754410 chips. I seem to have lost my bookmark. Thanks, - Nick - (25 years ago, 14-Jul-99, to lugnet.robotics.handyboard)
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| | Two 6500 Sonar Module Trouble
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: text/plain; charset="ks_c_5601-1987" Content-Transfer-Encoding: base64 Content-Length: 682 2. Content-Type: text/html; charset="ks_c_5601-1987" Content-Transfer-Encoding: base64 Content-Length: 1529 (25 years ago, 14-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Subsumption Architecture
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For a Quicktime Demo of applied Subsumption at work, go to www.cooper.edu/~mar. ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art (...) (25 years ago, 14-Jul-99, to lugnet.robotics.handyboard)
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| | Re: No heartbeat when switch on
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did you try reloading the operating program, pcode_hb.s19? use hbdl on windows or 6811 downloader mcl on macintosh. this program (pcode_hb.s19) must be resident on the HB at all times. it sounds like for whatever reason it got corrupted. this isn't (...) (25 years ago, 13-Jul-99, to lugnet.robotics.handyboard)
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| | No heartbeat when switch on
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Hello I had used the HB for a few days already. Recently when I used the HB to drive 4 9V motors, the L293D chips got very hot. After that it LEDs start lighting up without the software turning on the motors. So I replace the L293D chips. Now when I (...) (25 years ago, 13-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Subsumption Architecture
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"Eat Bugs!" wrote: [snip] (...) Jonathan: As a relative newbie I'd be very interested in seeing a HandyBoard code (IC and assembler) site. Copying and then modifying other people's code has been a great learning tool for me. Copying one person's (...) (25 years ago, 13-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Subsumption Architecture
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(...) I have used this method, to great effect. It seemed upon first try that it was just too darn big to do any good, but if you're creative it's really pretty efficient. I *would* share my code, but it all burned up in a fire (he-he). Actually, I (...) (25 years ago, 12-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Problem with accessing analog and digital ports on HB with IC2.81
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you have to use the HB libraries; you're probably using the 6.270 Board libraries. get the new libs from (URL) . run 'ic -config' to change the default library to lib_hb.lis. fred In your message you said: (...) (25 years ago, 12-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Subsumption Architecture
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(...) Nick, I used Handy Boards in my AI class last year and have several labs available on the web. Check out the link: (URL) look at the "Lab 3" link for some starter code on subsumption architecture. Lisa (25 years ago, 12-Jul-99, to lugnet.robotics.handyboard)
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| | Problem with accessing analog and digital ports on HB with IC2.81
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Hello, (newbie warning - I've read the FAQ and manuals, but I may still be missing something very trivial. Still, thanks for making it so far!) I just bought a handyboard from Gleason Research (with the expansion board) and started going through the (...) (25 years ago, 12-Jul-99, to lugnet.robotics.handyboard)
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| | TAKE ME OFF THIS LIST ***
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Ive tried the method described @ the web site but it doesnt seem to work can you please take me off the list I no longer wish to recieve it. Thanks -Mike (25 years ago, 11-Jul-99, to lugnet.robotics.handyboard)
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| | Re: encoders and analog ports
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(...) well once again i've learnt the hardway. always get the latest software. downloaded the new libs, and that fixed me up. i was using the libs from when i first started with the hb (years ago). all my analogs are stable again. i am very happy. (...) (25 years ago, 11-Jul-99, to lugnet.robotics.handyboard)
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| | Re: encoders and analog ports
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are you using the .icb version of the analog driver? make sure you are using the latest set of libraries for the HB from the web site. i'm just guessing at this point. next follow up, please provide a listing of exactly what lib files are being (...) (25 years ago, 10-Jul-99, to lugnet.robotics.handyboard)
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| | serial servo controller
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Does anyone here have experience with the NetMedia Servo 8 Torque controller board. Available from: (URL) $60 post paid. It controls up to 8 servos and provides position and torque feedback for each servo upon request. Looks good for my walker. Any (...) (25 years ago, 10-Jul-99, to lugnet.robotics.handyboard)
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| | Subsumption Architecture
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Hello All: Reading "Mobile Robots" by Jones & Flynn has gotten me interested in implementing subsumption architecture (also known as behavior control) on my HandyBoard. I've found one site that has related material: (URL) How many of your are (or (...) (25 years ago, 9-Jul-99, to lugnet.robotics.handyboard)
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| | Re: encoders and analog ports
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thanks fred. i'm now using the servo_a7.icb routines to drive my servo. i am still experiencing problems with the analog ports. i have cascading if then else statements that yield varying responses from my 5 analog ldr's. i have put printf's (...) (25 years ago, 9-Jul-99, to lugnet.robotics.handyboard)
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| | Re: Opto-reflector
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Hi, it seems that my opto-sensor is not fast enought to "catch" the black & white strip which stick on the robot wheels running at 25rpm. Maybe it is due to the program timing with the start_process command. Or maybe I need to replace it with shaft (...) (25 years ago, 9-Jul-99, to lugnet.robotics.handyboard)
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