 | | Smooth PWM Routines!
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Julian Skidmore <skidmorj@cs.man.ac.uk> has implemented and released a new algorithm for performing the pulse width modulation on the Handy Board's motors, allowing up to 100 power steps rather than just eight! This is a big, big improvement over (...) (27 years ago, 3-Dec-97, to lugnet.robotics.handyboard)
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| | Penn State Robot contest
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Hi, Penn State Abington College (Abington, PA; Phila area) will be hosting the 3rd annual "Robo-Hoops" autonomous robot contest on Sunday, Dec 7, 1997 (1-3pm). Robots must pick-up and dunk or shoot Nerf balls (4" diam) into a net positioned 12" (...) (27 years ago, 3-Dec-97, to lugnet.robotics.handyboard)
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| | Sortie Vidio
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Hello all, Can we used the video output to guide an extern system? Salut tous, Peut-on utiliser les sorties vidéos pour commander un système extérieur? Frechn Student... By (27 years ago, 2-Dec-97, to lugnet.robotics.handyboard)
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| | Re: IC with other boards
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(27 years ago, 2-Dec-97, to lugnet.robotics.handyboard)
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| | IC with other boards
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Is is possible to run the freeware IC with the BotBoard II? (How?) Also, what is the difference between the RugWarrior version of IC and the Handyboard version? -- Justin Kao <jkao@bigfoot.com> <jkao@compuserve.com> (27 years ago, 1-Dec-97, to lugnet.robotics.handyboard)
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| | PCBs in the UK
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Hello, This is a note for people in the UK. I just ordered 2 sets of handy board PCBs from Colin Barnard of Miranda Robotics. The boards arrived quickly and appear to be good quality boards. -Jeff Loeliger r12110@email.sps.mot.com (27 years ago, 1-Dec-97, to lugnet.robotics.handyboard)
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| | Re: IC problem
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(...) Alright, I have isolated the problem a little more since last time. It turns out that when I put my finger over a certain area of the solder side of the board, I can run IC perfectly well. The area is right around pin 22, 21 and 20. I believe (...) (27 years ago, 1-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Smoking serial/charger board...!!!
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Hi. This evidence pretty conclusively points to a power-ground short on your board. Here is why: * you are fairly certain it is not the RJ11 cable (the most common cause of blown R11's). * when applying charge pwr directly to the HB's charge jack, (...) (27 years ago, 1-Dec-97, to lugnet.robotics.handyboard)
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| | Re: IC problem
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Jeremy, You have to give us more information about what you've tried. Have you re-downloaded pcode_hb.s19 to your board? Do you get the boot beep and LCD message when you turn your board on? Have you changed your desktop computer configuration at (...) (27 years ago, 1-Dec-97, to lugnet.robotics.handyboard)
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| | Re: IC problem
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(...) Hi Jeremy, My board does that sometimes too. Are you useing the same telephone cable? Make sure all other programs are closed on your computer. Reset the board by turning it off and then back on. Good luck Terry (27 years ago, 30-Nov-97, to lugnet.robotics.handyboard)
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| | Robotics club in the Los Angeles area.
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Does anybody know of a club in the Greater LA area. The only one I've found so far is over an hours drive away. Any info would be helpful. Thanks Mike (27 years ago, 30-Nov-97, to lugnet.robotics.handyboard)
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| | IC problem
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Hi guys, I know that this exact question came up once before in this newsgroup, but its reply has long since gone to the bit bucket in the sky, so forgive me. Anyway, I can get the following message on my handy-board: Interactive C V 2.81 9/28/93 (...) (27 years ago, 29-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Smoking serial/charger board...!!!
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I am having a similar problem (see notes below) - R11 is burning on the serial/charger board. My HB had been on the shelf for a month or so, and it may have been left on AND I had made the motor-power hack (I tapped the center of the battery pack to (...) (27 years ago, 28-Nov-97, to lugnet.robotics.handyboard)
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| | LCD Connector?
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Hello to ALL, I was wondering if the LCD connector could be used to connect a speech board from RC Systems. Could I unplug the LCD module and use the plug ins for the board w/ an additional power source for the board? Thanks, Randy Eaton (...) (27 years ago, 28-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Replacement for ZTX614 NPN Darlington Transistor
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(...) I am currently arranging a supply of the ZTX614, when they are available I will post the price to the list, hopefully early next week. I also supply the Handyboard in the UK at £19-50 for the set (main board and charger/if) including first (...) (27 years ago, 27-Nov-97, to lugnet.robotics.handyboard)
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| | The frequency of a digital input...
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Hello all, What is the maximal frequency that we can put on an digital input of HB? French Studant... By, and thanl you... (27 years ago, 27-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Handy Board PWM Routines
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(...) <snip> LDAA speeda ; rotate bits in motor speed ASLA ;Rotate the speed bitmask one bit position. BCC SPDoffA ;Did we set the carry flag by shifting a "1" out ; of the MSB of the register? ADDA #1 ;We pushed a "1" out of the register, better ; (...) (27 years ago, 27-Nov-97, to lugnet.robotics.handyboard)
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| | HB sonar new drivers
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the new code is improved in the sense that 1. there is a clear schematic and wiring diagram; 2. it does not require the removal of a motor driver chip; 3. all driver code is written in Interactive C. fred (27 years ago, 27-Nov-97, to lugnet.robotics.handyboard)
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| | Handy Board PWM Routines
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I've recently been implementing a PD controller on the HB for use in a line following robot, and have been having some problems with instability, especially around the zero point. I was beginning to suspect that the 8 levels of PWM in the HB library (...) (27 years ago, 27-Nov-97, to lugnet.robotics.handyboard)
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| | Re: Polaroid 6500 stuff
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What was wrong with the old drivers? ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (27 years ago, 26-Nov-97, to lugnet.robotics.handyboard)
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