 | | the Expansion Board 3.0 beta program
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Dear all, The design for the Handy Board Expansion Board is done, and I am now sponsoring a limited beta-test program. I know that many of you have been waiting a long time for the board, and I will be asking most of you to wait a little longer as (...) (26 years ago, 14-Jun-98, to lugnet.robotics.handyboard)
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| | config 0x0C
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Hi there, I have used a 68HC11E1 with my HB for quite a while now and it works fine with it. Now I replaced it with a 68HC11A1FN and it wouldn't let me download the .s19 file with HBDL anymore. It stops when downloading the program and says: Invalid (...) (26 years ago, 12-Jun-98, to lugnet.robotics.handyboard)
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| | *** pyroelectric sensors ***
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Hi I want ti make a robot follow people around, How many pyroelectric sensors do I need on the robot? I would think TWO one on either side in front? Someone told me only one is needed? can anyone shed some light on this subject? Thanks -MIKE (26 years ago, 12-Jun-98, to lugnet.robotics.handyboard)
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| | pcbug11 crashes
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Hello, I can't seem to get pcbug11 to run from Windows 95 (full screen dos-mode). I've downloaded every possible version and I always get: "runtime error 200 at 20FF:0091" when running pcbug11.exe. Has anyone encountered this before? Thanks in (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Multi-tasking under IC (Freeware version)
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(...) Yup, that's the way! Good thinking. Fred (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | Multi-tasking under IC (Freeware version)
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I am somewhat new to handyboards and IC, so bear with me if this issue has been dealt with before. (I did check the FAQ and "some" of this list's archives prior to posting.) Under IC (the freeware version) cooperating processes communicate using (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | Re: motor selection
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(...) From the archive: Date: Tue, 3 Mar 1998 17:12:30 -0500 (EST) (...) I have a sonar mounted on a panning servo, and I just bought an el-cheapo Cirrus CS-50. (It is functionally equivalent to a JR/Hitec JR-507 or HS-300). It works fine, although (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | RE: input impedance
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Never mind, I have managed to solve the problem by cutting the trace between the 47k pull-up resistor and the sensor input. -----Original Message----- From: Joe Martin [SMTP:joema@mpx.com.au] Sent: Wednesday, 10 June 1998 18:29 To: (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | D/A converter
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"Hi", from Hector Noriega, I am trying to send a data byte from port C out to a D/A converter faster than 1KHZ (target about 10KHZ) . I wrote a test subroutine in assembly code but I can not enable the address decoder using port B for the msb and (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | onboard IR receiver
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the problem that i was having with the onboard IR receiver is that the codes that i retrieved from the ir_data() function were inconsistant from the same remote control button. the error was usually manifested in multiples of two, which lead me to (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | Re: motor selection
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Where is your source and how do the Cirrus compare to Futuba in price? At a local hobby store in Houston I bought 2 Futuba 3003 (I think) that are the replacements for the 148 which I believe are no longer being made. They cost me about $13 but list (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | Re: input impedance
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(...) Hmmmmmm.. as I recall, there are 47k pullups on those inputs. These are used to condition the signals when used as a digital input. The 'HC11 pink book suggests that any input resistance of greater then 10K will "...degrade A/D accuracy." The (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Question about Sharp IR demodulators
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I had a similar experience, except that all my IR demodulators were from Radio Shack; two were some I'd gotten in a "grab bag" quite a few years ago, and the others were brand new. The original one reacted to 40KHz the way you describe yours doing - (...) (26 years ago, 11-Jun-98, to lugnet.robotics.handyboard)
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| | motor selection
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Can anyone tell me what is a good servo motor? I haven't had any experience and would like some input on names of servos to choose from. I am looking for a model number and company. Chris Rhodes (26 years ago, 10-Jun-98, to lugnet.robotics.handyboard)
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| | Question about Sharp IR demodulators
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Hi everyone, First, sorry for the blank message just now -- hit the send button instead of the cancel. I'm working on a project where I've got robots hunting targets equipped with a 40 kHz oscillator circuit which is continuously pulsing an IR LED. (...) (26 years ago, 10-Jun-98, to lugnet.robotics.handyboard)
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| | (no subject)
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--- Paul E. Rybski --- (URL) (26 years ago, 10-Jun-98, to lugnet.robotics.handyboard)
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| | Extra HB For Sale
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I have one extra HandyBoard that I will sell if anyone needs one. It is a fully assembled and tested board with Serial Interface Board and cases. It has never been used in a project (about 2 months old). I built two of these and find that I am only (...) (26 years ago, 10-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Windows NT experiences?
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I use IC 2.8 under NT with no problems. Before you can use IC under NT, you`ll have to turn off the COM-port your HB is connected to under NT, or else NT won't let IC use it. You can delete the COM port in the `ports` part in you configuration (...) (26 years ago, 10-Jun-98, to lugnet.robotics.handyboard)
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| | input impedance
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Does anyone know the impedance onto the sensor inputs on the HB and/or any suggestions for setting them to receive signals sent at 220K Ohm. Joe Martin joema@mpx.com.au (26 years ago, 10-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Windows NT experiences?
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I've been using IC3.2 on Windows NT/4.0 with very few problems. I used to have IC lock up occasionally, but only when I disconnected the Handy Board at weird times. Once I was more careful about disconnecting the Handy Board only when IC was at a (...) (26 years ago, 9-Jun-98, to lugnet.robotics.handyboard)
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| | Windows NT experiences?
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Hi all, I was wondering if people would please "share" their experiences running Interactive C on Windows NT. Is anyone using the old freeware DOS IC on NT? Did you have any trouble getting it to work? Please send to the list, or me privately if (...) (26 years ago, 9-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Legos
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the motor is available via LEGO Shop at Home (S@H for short) tel: 1-800-453-4652 there are three kind of motors: #5114 $17.50 (the one that you see in #8270, old style) #5225 $17.50 (the one that in #8735, newer one, with gear reduction) #5119 (...) (26 years ago, 9-Jun-98, to lugnet.robotics.handyboard)
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| | Legos
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I know someone just asked this question, but where can I buy just the lego motors, and not the $45.00 set from a toy store. Thanks, Mike ---...--- Mike Reiling macman@inreach.com University of the Pacific Student of Computer Science One tequila, two (...) (26 years ago, 9-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Include directive, HexMon
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I had same problem, and found that if you put the include files in the same directory as your file to be complied, and then place the file in quotes (eg. #include "6811regs.asm") it will compile. John (...) (26 years ago, 9-Jun-98, to lugnet.robotics.handyboard)
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| | Re: serial communications
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Justin Here is the file. Please feel free to modify/improve. I'm a doctor not a programmer, and I better keep my day job. Notice it borrows Randy Sargent's and Dr. Richard F. Drushel's routines found in serialio.c and math.c, both on the handy board (...) (26 years ago, 9-Jun-98, to lugnet.robotics.handyboard)
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| | clock signal needed for decoder chip
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Hello, I am hooking some HP decoder chips to the handyboard. They are HCTL-2020's and they decode a motor position encoder signal. My problem is that I need to hook one of the pins on the 2020 (the CLK pin) to a clock. I'd like to get ahold of the E (...) (26 years ago, 8-Jun-98, to lugnet.robotics.handyboard)
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| | Re: handshaking
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(...) Regarding your earlier message, if you're just wanting to talk to a GPS, then you don't need handshaking, because I haven't found one yet that supports it. It is a simple three-wire interface to most GPS's, TX/RX and Ground. They don't support (...) (26 years ago, 8-Jun-98, to lugnet.robotics.handyboard)
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| | Re: LCD Removal
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All pcodes shipped with IC 3.1/3.2 are designed to work fine either with or without LCD. Prior to 3.1, you have to build a pcode specially to disable the LCD. -- Randy (...) (26 years ago, 8-Jun-98, to lugnet.robotics.handyboard)
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| | Re: any micromice out there?
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Hi Brian, Several of my Penn State Abington freshman and sophomore engineering students constructed a working micromouse from LEGO and a HB. The approach was a vehicle that can only move in the north-south or east-west directions by alternately (...) (26 years ago, 8-Jun-98, to lugnet.robotics.handyboard)
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| | handshaking
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could you please explain to me the details of handshaking? i need to understand this before i can go any farther. exactly what is transponded during this? and how is this implemented thru assembly language? thank you. Justin D. Gullotta.. , (...) (26 years ago, 8-Jun-98, to lugnet.robotics.handyboard)
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| | Re: serial communications
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(...) I too have done this, with both a Garmin GPS-II+ and a Garmin GPS-35PC. I have posted segments of the code necessary to do this to the Handyboard list before, so if you look through the archives and grep for "WE7U", you should find them. If (...) (26 years ago, 8-Jun-98, to lugnet.robotics.handyboard)
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| | Include directive, HexMon
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Hello, I've been trying to compile .asm files using as11.exe. The files I received with my copy of IC contain the #include directive. Does anyone know of a copy of as11.exe that supports this? If I use as11_ic.bat, to build an *.icb file, the gcc (...) (26 years ago, 8-Jun-98, to lugnet.robotics.handyboard)
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| | computer crash!!
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Could someone please help me get my handyboard to communicate with the computer?? First, my computer crashed, the hard disk had to be formatted,windows 95 reinstalled, ic3.2 reinstalled. I was communicating with the handyboard thru com 4. When I (...) (26 years ago, 7-Jun-98, to lugnet.robotics.handyboard)
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| | Re: serial communications
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Justin, Interfacing a GPS to the handyboard is straight forward. Most GPS receivers comply with the National Marine Electronics Association (NMEA) standards. They transmit their information in ASCII "sentences" which are framed by a $ at the (...) (26 years ago, 6-Jun-98, to lugnet.robotics.handyboard)
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| | serial communications
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i have been looking thru the libraries that people have posted on the web, particularly the ones that allow serial communication. i am not sure how the system works, but there are numerous routines which turn handshake on and off, as well as (...) (26 years ago, 6-Jun-98, to lugnet.robotics.handyboard)
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| | DC motors vs. servo motors
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The nature of the PWM (pulse width modulation) is entirely different for servo's vs. plain DC motors. For a DC motor, it has a two wire connection. All drive power is supplied over these two wires -- think of a light bulb. When you turn on a DC (...) (26 years ago, 6-Jun-98, to lugnet.robotics.handyboard)
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| | Re: motors
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For servo, there is a certain threshold duty cycle (say 50%) of the PWM signal, where anything above this threshold will make it to run forward, and less will make it to run backward. So, you still need to apply the PWM even if the servo is not (...) (26 years ago, 6-Jun-98, to lugnet.robotics.handyboard)
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| | Re: LCD Removal
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Hello, Does anyone know if the Rug Warior Pcode run without the LCD? (Pcoderwl.S19) If not : 1 is there another RW pcode that will run without the LCD? I using the RW pcode on my Fingerboard II with out the LCD and I think this may be an issue. (...) (26 years ago, 6-Jun-98, to lugnet.robotics.handyboard)
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| | motors
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That did answer my question. I am not familiar with servo motors, I have only used plain DC motors. I am also familiar with PWM. I was just unable to determine if the same PWM signal that drives plain DC motors could also drive servo motors. From (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: LCD Removal
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it's easy: just use the replacement pcode_hb.s19 file provided by Kent Farnsworth: (URL) your message you said: (...) and still have the HB work. My design does not require the LCD, so if i could r emove it my robot would then be a little more (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Lego motors
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(...) As I've said, I think the new Lego Technic gear motors are a great deal. They're inexpensive (about $18 each), they seem to be quite efficient, and they run well directly from the HB power supply. If you're building your robot out of Legos (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | LCD Removal
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I was just wondering if there's any way to disable and remove the LCD screen and still have the HB work. My design does not require the LCD, so if i could remove it my robot would then be a little more balanced. Every time I remove the LCD my (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: lego robot servomotor
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(...) What you have is most likely a 9V DC motor, not a servo. As far as I know, there is no such thing as a Lego servo motor. The four-contact plug is a Lego standard that allows changing the polarity simply by rotating the plug 90 degrees. There (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | lego robot servomotor
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i have a motor that is manufactured by lego, and has a 4 pin connector which is in the shape of a lego block. i am new to lego robots, so i do not know what the various parts look like exactly. the motor that i have is about 1.25" cube, and seems to (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Lego motors
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This subject has most probably been discussed numerous times but I'm kinda new to this mailing list and the Handyboard so bare with me. What are the pros and cons of using Lego motors to drive a robot project that I have in mind ???, should I scrape (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: DC VS SERVO
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That still does not tell me the difference between how they are diven. For instance, can you use the 4 motor ports to drive a servo motor? If not why? Any help appreciated. Chris Rhodes (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Radio Shack Tape Measure
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There were two enthusiasts who did hacks on the Radio Shack Tape Measure, Jonathan, back in February of 1994. Their names are Thomas Rowley and Brian Van Mondfrans. Brian was at Thurston High School in the Puget Sound area back then so you might (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Infrared Optosensors
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I've had pretty good luck getting up to around 2" by using a standard IR LED and standard IR phototransistor, modulating the IR LED in software, and looking at the analog value returned from the phototransistor like so: { int refl; led_on(); refl += (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Radio Shack Tape Measure
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Can anyone point me to an article on connecting the Radio Shack Tape Measure to the MIT 6.2 controller board. Also, has anyone used this device with either the miniboard or the handyboard. thank you ___...___ ___...___ Jonathan Swaby 305 Sparks Bldg (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Infrared Optosensors
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1/2" is actually pretty good range for a basic reflectance sensor. try using them in the analog inputs -- you should get readings that let you read out to about 1". to get better than that, you need a modulated signal, like Pandit has described. (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: Infrared Optosensors
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Hi Brian, I believe you are trying to implement the proximity sensor for object avoidance or collision avoidance, correct ? I believe the QT1114 is designed for the range the you have found. The spec. of the part also indicate the very near range (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Problems with Smoot-PWM
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Hi all, i have problems during download the new smooth-pwm routine into my handyboard. All times my downloader stopped after few seconds with an error message "EOF after 1xxx Bytes ....." I´m using a macintosh (PPC 4400) and use the 6811 download (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Infrared Optosensors
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I interfaced 3 infrared optosensors to the digital inputs on the handyboard. I'm a little dissapointed in their performance however. The only time they give a reading of "true" is if they are about a half an inch or closer from the target. Any (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | Re: DC VS SERVO
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Chris, See pages 20 and 21(pdf pages 25 and 26) of the handyboard technical (...) (26 years ago, 5-Jun-98, to lugnet.robotics.handyboard)
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| | DC VS SERVO
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HELLO, MY NAME IS CHRIS RHODES AND I AM CONFUSED ABOUT THE DIFFERENCE BETWEEN A SERVO MOTOR AND A DC MOTOR. THE HANDYBOARD LITERATURE SAYS THERE ARE THE 4 DC MOTOR OUTPUTS AND 1 DIGITAL INPUT THAT CAN USED AS A SERVO OUTPUT. WHAT IS THE DIFFERENCE (...) (26 years ago, 4-Jun-98, to lugnet.robotics.handyboard)
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| | Robotic Lawnmower List/DGPS
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Can someone give me the info on the robot lawnmower mailing list? As I recall they split off with their own list a while back, but I didn't follow to the new list. There are some developments in Differential GPS that they should probably be made (...) (26 years ago, 4-Jun-98, to lugnet.robotics.handyboard)
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| | A/D converter
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From: Hector Noriega, 3JUNE98 Thanks Adam,(adam@programmer.net) The Speed of the A/D inproved by about 50 HZ, by getting rid of float types, so now I can sample data at 290HZ only!. According to the Motorola "Pink Book" the A/D should be ready after (...) (26 years ago, 4-Jun-98, to lugnet.robotics.handyboard)
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| | Re: One Handy Board available for sale.
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I stand corrected. From: brian-c@technologist.com Date sent: Thu, 2 Jul 1998 23:49:02 -0400 (EDT) To: "Mike Davis" <ipscone@halcyon.com> Subject: Re: One Handy Board available for sale. (...) -- ---...--- ipscone@halcyon.com Shoot-To-Win! Protect (...) (26 years ago, 4-Jun-98, to lugnet.robotics.handyboard)
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| | Re: One Handy Board available for sale.
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Isn't that more than the board is brand new, assembled and tested? They are available for $180. Correct me if I am wrong. Is the IC perhaps 3.x? From: PWebb@swri.edu Date sent: Thu, 2 Jul 98 11:36:10 CDT To: <handyboard@media.mit.edu> Send reply to: (...) (26 years ago, 3-Jun-98, to lugnet.robotics.handyboard)
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| | Re: download problems
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The motor state is insignificant before the board has booted. I.e., the fact the motors are on the red direction means nothing; it's just the random state of the motor output latch when the board turns on without a program. The LCD screen should not (...) (26 years ago, 3-Jun-98, to lugnet.robotics.handyboard)
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| | download problems
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i am still having trouble with getting the PC to communicate with the handyboard. all conections seem to be correct, and the programs are configured correctly, but the thing will still not communicate properly. mabye there is a fault in the board (...) (26 years ago, 3-Jun-98, to lugnet.robotics.handyboard)
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| | Analog to Digital C.
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: text/plain; charset=ISO-8859-1; name="A2D.TXT" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="A2D.TXT" Content-Length: 2578 (26 years ago, 3-Jun-98, to lugnet.robotics.handyboard)
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| | Re: initial connection errors
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The reason the board is not responding seems to be because the downloader is sending data to the wrong COM port. Find out whether you are using COM1 or COM2 and then check your downloader and IC as well to confirm you are on the right port. from the (...) (26 years ago, 2-Jun-98, to lugnet.robotics.handyboard)
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| | initial connection errors
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i have been trying to get the pcode_hb.s19 file downloaded to the handyboard, and the farthest that i got was the file downloaded (using 'dl' and 'dlm' downlloaders) but then the PC couldnt synchronize with the handyboard. i have a series 'a' board, (...) (26 years ago, 2-Jun-98, to lugnet.robotics.handyboard)
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| | (no subject)
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Is there a handyboard emulation program for the wintel platform? Thanks in advance Dick Hammond (26 years ago, 1-Jun-98, to lugnet.robotics.handyboard)
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| | Re: hbtest.c errors
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|
(...) ... (...) your Interactive C is not loading the correct libraries. Make sure IC is configured to load lib_hb.lis, NOT lib_r22.lis. Get the latest lib_hb.c, lib_hb.lis, and lib_hb.icb from the Software resources area of the HB web site. (...) (...) (26 years ago, 1-Jun-98, to lugnet.robotics.handyboard)
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| | hbtest.c errors
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I am currently assembling a Hand Board and I am on page 39 at 7.2.2 Testing, When I load hbtest.c I get the following error messages. Error in hbtest.c around line 48: Function star_press undefind. Error in hbtest.c around line 51: Function knob (...) (26 years ago, 1-Jun-98, to lugnet.robotics.handyboard)
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| | Looking for HB
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Hi, does anyone have a used Handy Board for sale? I know it is a lame question, sorry about that. Sterling (26 years ago, 31-May-98, to lugnet.robotics.handyboard)
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| | Re: Battery types
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I believe the 9.6 volt also makes a good match for most LEGO motors. -Pandit ---...--- (...) batteries... (...) overhead (...) your (...) Lithium (...) specs. (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
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| | Re: Battery types
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(...) <SNIP> My understanding is that 7.2V will work fine. I suspect 9.6V is used simply because 8 AA NiCd's fit so well in the specified box. The chief concerns here are: (1) do you have enough voltage overhead for the 7805; and (2) can you draw (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
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| | Re: Battery types
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I personally use a single 12 V 3Ah Gell cell to power my entire robot. I'm using the 7805 with a heat sink and works just fine. -----Original Message----- From: brian-c@technologist.com <brian-c@technologist.com> To: handyboard@media.mit.edu (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
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| | HB with hacked servos as drivemotors
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Hi, I'd like to use two hacked servos _with_ servoelectronic for a Rug Warrior like robot controlled with a HB. Now I am searching for motor driver functions for IC 3.2 to control the servos via the standard motor functions (i.e. fd(), bk(), and so (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
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| | Battery types
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...was just wondering if the Handy-Board can run on other types of batteries besides Ni-Cds, such as: NiMH batteries which have higher mAh ratings vs. a Ni-Cd equivalent. Also, will Lithium batteries work with the HB? Are there any performance (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
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| | Datasheet for TI IC
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Hi ! I am searching for the data sheet of a TI speechprocessor TMS3477 (I have the board of a little speech recorder with 90 seconds capacity and max. 16 speech segments with this chip and I will try to connect this board to the Handy Board for a (...) (26 years ago, 28-May-98, to lugnet.robotics.handyboard)
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| | IC persistent globals?
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Hello all, I am using neural nets to control my robot, and currently have to download the weights to the handyboard every time I power on. This is a perfect application for using persistent global variables, but alas I am having troubles. My (...) (26 years ago, 27-May-98, to lugnet.robotics.handyboard)
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| | Re: Polaroid 6500
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jluijk wrote: <snip> (...) The two on the left are + battery voltage and the two on the right are ground. They're doubled up to handle more current, I guess. (...) Make sure that you're getting 9.6 V at the motor power header, and that you have your (...) (26 years ago, 27-May-98, to lugnet.robotics.handyboard)
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| | Re: please unsubscribe me
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---...--- (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Re: unsubscribe
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---...--- (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Which R4 should I use???
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I notice that in hbmanual.pdf there is a different value for R4 than in hba.pdf since I used the list of hbmanual, I bought R4=2.94k precision resistor, but in the asembly file it says 3.83k precision resistor. Which one is the good one and why need (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Pyroelectric Sensor
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Hello. I have working with a handyboard, and I am trying to obtain information on how to properly use a eltec 442-3 pyroelectric sensor. I bought a complete one with a lens. My objective is for my lego robot to locate either a flame or heat source, (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
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| | Legos
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Does anyone have any experience with any of the Lego technic systems. I am looking for a car/truck that has motors (or can add motors to), has enough room for a handyboard, and has the rack and pinion steering. I would also need a servo for the (...) (26 years ago, 25-May-98, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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Greetings, This is the periodic friendly reminder that in order to unsubscribe, you must send an email to fredm@media.mit.edu asking thusly. Again, the method for unsubscribing is: 1. write an email saying "please unsubscribe me"; 2. send it to (...) (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | Distance Measuring Sensor
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Hi ! How is it possible to interface one or more SHARP GP2D02 to the HANDYBOARD ?? Best Rerards Diego (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | Pad sizes and hole sizes
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I'm working on a board and I would like to avoid much trial and error. I have read much on selection of pad sizes/via sizes and hole sizes but there seems to be some contridiction. Does anyone know what the pad sizes (for ICs), hole sizes (for ICs) (...) (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
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| | Re: Board not responding
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(...) The most probable cause of this is a dead 6811. (it spoils rather easily... :(Because everytime i have a problem with the board, it turns out to be nothing more than a shot 6811. Even replacing the 7805 with a LM2931T kills it. (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
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| | Board not responding
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Hi! The handy board was working good before and I haven't used the board for a while. Recently, I ran the downloader few times, but I couldn't download the bootstrap. I think the download mode is ready, but the error message like "Board not (...) (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
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| | setting the best PWM frequency for DC motor
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hello everyone, I found some information on "How do I set best PWM parameters for DC motors?" from the "Robotics Information" homepage, (URL) inside it described that in order to make current to flow steadily in between pulses, you need to satisfy (...) (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
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| | Where can I find spec. of the LM052L
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I have an equivalent LCD screen (sharp L16255), I think, but it is a bit different from the LM052L and I am not sure how to interface it to the handy board. I cannot find any spec. on neither of these LCD screen and just need a hint maybe. Thanks (...) (26 years ago, 22-May-98, to lugnet.robotics.handyboard)
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| | Re: important update to Handy Board standard libraries.
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(...) You must manual consolidate the new driver with the smooth-pwm libraries. To consolidate, 1. edit the smooth-pwm lib_hb.c, and remove the function "_raw_analog()", 2. install the new lib_hb.icb file in your IC lib directory (this contains the (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: important update to Handy Board standard libraries.
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Will this new lib_hb.c also replace the Smooth PWM lib_hb.c released by Newton Labs? It appears not. What is the easiest way to consolidate the Smooth PWM routines with your improved analog code? Cheers, Skye. +---...---+---...---+ | Skye Legon | (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: Addresses of SPI ports
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Hi Arthur, The SPI expansion header is shown below: ---...--- Pinouts: 1 Gnd | 2 | 1 | 2 Vcc 5V | 4 | 3 | 3 SS* | 6 | 5 | 4 MISO | 8 | 7 | 5 SCK ---...--- 6 MOSI 7 & 8 Not connected I assume you will be using the Handy Board as a MASTER device not a (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: Addresses of SPI ports
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Hi The SPI Header is connected to port D of the hc11 as follows: Port D Bit 2 - PD2 - MISO Port D Bit 3 - PD3 - MOSI Port D Bit 4 - PD4 - SCK Port D Bit 5 - PD5 - SS All of those pins can be used for general-purpose I/O signals. To program port D (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Motors, Part 2
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Ok, I now realize that I only need one or the other motor driver. Now here is the problem. Nothing happens. I type fd(0); in IC and the motors do noting. I have pin 3 of the Wirz board going to pin 1 of the HB motor driver socket. Pin 7 of the Wirz (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: important update to Handy Board standard libraries.
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(...) you should download and install the new lib files. fred (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: important update to Handy Board standard libraries.
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Fred, How does the fix affect IC3.2? Jun Nolasco nolasco@inx.net (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Re: Motors
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It's one or the other. (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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| | Motors
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Anyone have the Wirez electronics motor driver board? Are you supposed to solder on both the L293Ds and the LMD18200s? Or is it just one or the other? Thanks, Mike ---...--- Mike Reiling macman@inreach.com University of the Pacific Student of (...) (26 years ago, 20-May-98, to lugnet.robotics.handyboard)
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