 | | re: New Expansionboard
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It looks good to me, I would be interested. Bill James | work: 972.480.2306 Product Test Specialist | Pager: 972.597.6201 w-james2@ti.com Precision Analog & Interface Department Polymath in Training | Have Spacesuit will Travel ---...--- Original (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Recycled Sonar units
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Hello All, I have salvaged two modules from Polaroid cameras. My question is ... the pin outs on the control board for the "Spectra" has 17 straight in a line pin ins and the other module and board from a Autofocus 660 has 8 straight in a line pin (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Anyone using the motor powewr header J13 ????
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Hi all, for designing reasons I wonder if anyone is using the Motor Power Header J13. Would anyone be pleased if we added an extra power connector to our expansionboard to supply J13 with more power ??? Thanks..... Tom (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | New Expansionboard
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Hi all We at the TWI (School of engineering, www.twi.ch) in Switzerland are using the Handyboard for several projects. One of them is a model car with ultrasonic sensors and model servos. Because of some limitations of the Handyboard we have built a (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: High current speed controllers
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Thomas, We are using the HB to control an AstroFligt 50A controller. The controller comes standard with a 20K pot to vary the PWM signal. What I did as substitute the 20K pot with a DallasSimi DS1803 pot. Its a 14 (I think) dip package that uses I2C (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Interrupt Programming
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We are building a mobile robot using the Handy Board and we desperately need help. To read into the sensors, we are programming using Interactive-C interupts. Would this be a good idea, and if so how do you do it as we are not quite sure. Are there (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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The phase difference seen by the sensors would be tiny at any practical frequency. Assume that you have the sensors a distance, D, apart and facing 'forward' on the robot. If there is a transmitting source at 90 degrees to the forward direction, the (...) (27 years ago, 8-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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(...) I confirm what David is saying! Once i worked on some kind of beacon using an PLL to find its frequency (we used a lm567) and it couldn't work properly due to the response time of the PLL. An alternate solution was to replace the PLL by a (...) (27 years ago, 7-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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(...) Hmmm...mmm... welllll.. if you are planning to use the GPUI series or equiv. as your detectors.. I think you may run into problems with attempting to detect critical time information about the modulated waverform. Namely, and I'm no expert on (...) (27 years ago, 7-Dec-97, to lugnet.robotics.handyboard)
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| | IR Disturbance?
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Hi, I'm trying to do the Trinity College contest for my science project. I'm using IR reflectance sensors to navigate the walls. But when I tried with the candle the robot went haywire. I think it's due to the IR eminating from the candle. How can I (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | Re: tracking an IR beacon
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I'm no electronic wizard which I think you probably would have to be to even consider what you are suggesting. Wouldn't it be simpler to just shield your sensors so that they 'look' in different directions? Have one look a little bit left and the (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | new version of 6811 Downloader for Mac
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Hi all, The 6811 Downloader program was starting to be flaky under System 8, so I fixed an odd serial bug. More like a work-around, actually. Anyway, if you use this program, and it is starting to flake out on you, download the new version. It's at (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | Re: High current speed controllers
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(...) Tom, Try this company , They have single and dual Forward/Reverse proportional speed controls for 4.8 - 140vdc at up to 220 amps and 3 hp. 500oz/in to 27 foot/pound packaged servos. I have a catalog from this company, great stuff but the price (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | Short?
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Hi, U13 (voltage regulator) blew on my Handy Board, so I replaced it. Somehow I think I shorted out the polyswitch fuse(F1) and the voltage regulator (shorted the pins that are closest to eachother. Now if I plug my HB in, the BATT, PWR, motor 2, (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | High current speed controllers
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Hello, I was wondering if anyone could recommend a speed controller circuit for controlling a 12VDC motor which could draw up to 25A. I'd like to use the Handy Board to control its speed. Cost is not a big concern but compactness is. I would (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | tracking an IR beacon
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Hello all - My goal: I'm trying to determine the feasibility of tracking an IR source with my Handy Board. My initial scheme calls for using two IR detectors (the ones with all the internal filters, etc, to provide a clean 5V output upon detection (...) (27 years ago, 6-Dec-97, to lugnet.robotics.handyboard)
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| | PCBS IN THE UK
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RR> This is a note for people in the UK. I just ordered 2 sets of handy RR> board PCBs from Colin Barnard of Miranda Robotics. The boards RR> arrived quickly and appear to be good quality boards. In addition to this, as I've said a while back, (...) (27 years ago, 5-Dec-97, to lugnet.robotics.handyboard)
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| | IC 3.1 pcode sources
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(...) Hi all, The IC 3.1 pcode sources are available from: ftp://newtonlabs.com...code31.exe (win32 self-extracting archive) or ftp://newtonlabs.com...de31.tar.Z (compressed UNIX tar archive) If the general consensus is that the new PWM routines are (...) (27 years ago, 5-Dec-97, to lugnet.robotics.handyboard)
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| | Memory
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Does anyone know how to increase the handyboard memory above the standard 32K? I looked at the archives, but I didn't see any solutions. -Richard (27 years ago, 4-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Smooth PWM Routines!
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Hi Does anyone know where to get the pcode source for IC 3.1 ? If I can get my hands on a copy it shouldn't be too difficult to work the new PWM routines into it.... Thanks Scott (27 years ago, 4-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Smooth PWM Routines!
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(...) Was the pcode source for the final version of IC 3.1 ever released? Afaik, only pcode 3.1 beta is available. ---...--- Jeff Keyzer UCSD EE Major jkeyzer@ucsd.edu (URL) (27 years ago, 4-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Smooth PWM Routines!
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(...) the pre-built pcode is for 2.8x, but sources are provided so someone could build a version based on 3.1. -Fred (27 years ago, 4-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Smooth PWM Routines!
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Is this a replacement for the IC3.1 p_code, or just for IC2.8x? Jun Nolasco nolasco@inx.net (...) (27 years ago, 4-Dec-97, to lugnet.robotics.handyboard)
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| | Re: Replacement for ZTX614 NPN Darlington Transistor
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I just joined the list, and saw in the list archives the recent question about a replacement for the ZTX614 Darlington. On my Handy Board which just arrived from Patrick Hui, the supplier in Hong Kong, a few part substitutions had to be made, which (...) (27 years ago, 3-Dec-97, to lugnet.robotics.handyboard)
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| | Remove LCD?
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Is the Handyboard supposed to work with the LCD display removed? When we try that with our Handyboard, it just beeps repeatedly. Any ideas on why that might be happening? Is it possible to modify the software so that the LCD display can be removed? (...) (27 years ago, 3-Dec-97, to lugnet.robotics.handyboard)
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| | 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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