 | | Re: Problem with my board
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Bob, What other code are you running? What does your motor code look like? Does anything get hot when this happens, like the motor control chip, the hex inverter or the voltage regulator? Gary Livick (...) (25 years ago, 9-Jan-00, to lugnet.robotics.handyboard)
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| | Problem with my board
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I am using a HD with expansion board. Periodically when I run the motors at anything less than 100 they spin with very little power and both the red and green lights on the board light up. At full power the motors work perfectly with only the green (...) (25 years ago, 9-Jan-00, to lugnet.robotics.handyboard)
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| | LEGO IR Remote Control
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Hello All, Has anyone developed an IR receiver/decoder to allow a HandyBoard robot to be controlled by a LEGO IR Remote (#9738)? My LEGO 'bots are great when they're controlled with the LEGO IR remote ... grade school kids really like the remote (...) (25 years ago, 8-Jan-00, to lugnet.robotics.handyboard)
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| | Mic for CCD Camera
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Hi, This question is not HB specific, sorry about that. I have bought a CCD camera board, and I want to add it to my robot together with a TV transmitter, the problem is that the camera has not built in audio, so I will like to know if someone has a (...) (25 years ago, 8-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Voice Recognition
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Hi Sonny, I've played with Voice Direct and also with the HM2007 chip. Both of them work fine in a quiet environment, but in my limited playing they were both overwhelmed by the ambient noise of a moving robot. They both are speaker dependent, and (...) (25 years ago, 8-Jan-00, to lugnet.robotics.handyboard)
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| | Voice Recognition
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Hello all, I have a project upcoming that would benefit from speech recognition. I have seen the voice direct by Interactive Speech and was thinking of integrating it into my robot. If anyone has had any success (or failure) with this product or any (...) (25 years ago, 8-Jan-00, to lugnet.robotics.handyboard)
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| | Re: I NEED HELP
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(...) BG Micro sells an equivalent Toshiba sourced part which I have been using in Rug Warrior without trouble thus far. The price is very good at 6.95 USD in quantity 25. You can contact them at www.bgmicro.com. John Vaughn Hobart & William Smith (...) (25 years ago, 7-Jan-00, to lugnet.robotics.handyboard)
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| | Re: I NEED HELP
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If you need just one 68HC11, give me your address and I'll post it to you. I have some spare ones (second hand). Peter Gasparik (...) robot, but i can´t get the MC68HC11 processor because here (in colombia) is not avaible anywhere (...) avaible, is (...) (25 years ago, 7-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Servos, power, and the expansion board
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Here is an update: I added an external power supply for the servos. Same problem. Everything works fine if I hook up to the charger in ZAP mode. Anyhow, I added an 0.22 microfarad across +5V and ground simply by sticking it into the headers on the (...) (25 years ago, 7-Jan-00, to lugnet.robotics.handyboard)
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| | I NEED HELP
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Hi , i have a trouble, i´m want to assembly my own HB for built a mobile robot, but i can´t get the MC68HC11 processor because here (in colombia) is not avaible anywhere I search at motorola web site, but they say me that the processor is not (...) (25 years ago, 6-Jan-00, to lugnet.robotics.handyboard)
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| | Servos, power, and the expansion board
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I've got four servos attatched to my expansion board and unless I keep the charger attatched in ZAP mode, I experience a lot of jittering. Has anyone else experienced this? Perhaps the NiCads in my Handyboard are old? Anyhow, I'm going to sever the (...) (25 years ago, 6-Jan-00, to lugnet.robotics.handyboard)
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| | GP2D12 Pinouts
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Please could someone let me know the pin arrangement for the GP2D12 as I have such a device with no documentation (the Sharp datasheet doesn't help). ... Richard (rspooner@frisurf.no) (25 years ago, 6-Jan-00, to lugnet.robotics.handyboard)
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| | Re: Digital Outputs, Multi-tasking
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(...) not me. (...) and (...) it (...) the rest of the functions are implemented in assembly by the pcode interpreter, therfore they wont have an entry in lib_hb.c. To use them, just call them as documented in the manual. (...) the (...) give s (...) (25 years ago, 5-Jan-00, to lugnet.robotics.handyboard)
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| | Re: [Fwd: hbdl doesn't work?]
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Hello, with hbdl i had also some problems in past. But since i changed to dl under DOS or Un*x, i had no problems anymore. I don't know why.... (25 years ago, 5-Jan-00, to lugnet.robotics.handyboard)
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| | serial problems
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Hi, I have exactly the same problem than he did, do you know what can I do??? I'm quite a bit stuck and would really appreciate some help Thanks Pedro Jeff Keyzer escribió: (...) and ran (...) file to (...) program (...) data. At (...) mode. (The (...) (25 years ago, 5-Jan-00, to lugnet.robotics.handyboard)
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| | printf
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Where does the printf function come from? When I list functions in IC there is no printf yet sending printf("text"); results in text output to the HB LCD. 'Tis a puzzlement. John (25 years ago, 5-Jan-00, to lugnet.robotics.handyboard)
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| | Short Circuit-EMERGENCY
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i had a short circuit between the handyboard's TO3 port and the handyboard's 11V supply. Now, whenever i turn the board on there's only black boxes on the LCD display. the Power LED is on and the board is in Zap mode. the message says that the board (...) (25 years ago, 5-Jan-00, to lugnet.robotics.handyboard)
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| | Digital Outputs, Multi-tasking
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1. On the Handyboard website, there are 2 drivers which make ports 5 and 7 digital output ports. I have used one of them to control a servo. I need another one to be connected to a SN754410NE so that i have a PWM output for a DC motor. Does anyone i (...) (25 years ago, 4-Jan-00, to lugnet.robotics.handyboard)
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| | [Fwd: hbdl doesn't work?]
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Hi, I have exactly the same problem than he did, do you know what can I do??? I'm quite a bit stuck and would really appreciate some help Thanks Pedro Jeff Keyzer escribió: (...) (25 years ago, 4-Jan-00, to lugnet.robotics.handyboard)
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| | Re: archive and/or temperature sensor
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Hello, I don't know if this will help, but you can buy a cheap thermistor (thermal resistor) from Radio Shack and plug it directly between an analog input and ground on the HB. The thermistor changes resistance with temperature. Thus, using the (...) (25 years ago, 4-Jan-00, to lugnet.robotics.handyboard)
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| | Re: archive and/or temperature sensor
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(...) Via the web (HTTP): (URL) news (NNTP): news://lugnet.com/lu...handyboard (main NNTP port) news://lugnet.com:11...handyboard (alternate port) news://lugnet.com:80...handyboard (alternate port) news://lugnet.com:80...handyboard (alternate port) (...) (25 years ago, 4-Jan-00, to lugnet.robotics.handyboard)
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| | Re: archive and/or temperature sensor
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Jim - Yes, there is an archive of this list. I maintain one at: (URL) is searchable and updates in real time as messages are received at infosite.com. Jeff (...) (25 years ago, 4-Jan-00, to lugnet.robotics.handyboard)
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| | archive and/or temperature sensor
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Hi, Hate to bother every one but is there an archive for the list? I remember a few weeks ago someone talking about interfacing a temperature sensor to the handyboard. I wanted to see how that person was going about it. I'm a software person who did (...) (25 years ago, 4-Jan-00, to lugnet.robotics.handyboard)
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| | Additional display
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I want to add an additional character display operated from my HB. It will be an LED character display larger than the LCD screen and remote from the HB. I am thinking of doing it with a "Y-cable" from the LCD header so that both can be used with (...) (25 years ago, 4-Jan-00, to lugnet.robotics.handyboard)
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| |
| | RE: sql server dba
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Please remove me from this spam list. Zac -----Original Message----- From: manish@technosoft.to [mailto:manish@technosoft.to] Sent: Monday, January 03, 2000 2:02 PM To: handyboard@media.mit.edu Subject: sql server dba Dear Friends, I'm enclosing the (...) (25 years ago, 3-Jan-00, to lugnet.robotics.handyboard)
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| | sql server dba
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Dear Friends, I'm enclosing the hot list of our company for this week it has been a great pleasure doing business with you and hope to continue to help you in fulfilling the requirements. If you do not have me on your email list please put me on (...) (25 years ago, 3-Jan-00, to lugnet.robotics.handyboard)
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| | List
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I would like to join your mailing list. My address is tacodog@ameritech.net Skipps (25 years ago, 31-Dec-99, to lugnet.robotics.handyboard)
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| | [Fwd: Undeliverable: pneumatic info]
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-- MIME ATTACHMENTS DISCARDED: 1. Content-type: MESSAGE/RFC822 Content-Length: 2150 (25 years ago, 28-Dec-99, to lugnet.robotics.handyboard)
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| | Sync. Errors
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Hello all, For all of you that guessed Com port setting you were correct. I had rechecked them before but had no gone into the advanced settings tab. There are two settings for UART transmit and receive buffers. I had both of them at the lowest (...) (25 years ago, 28-Dec-99, to lugnet.robotics.handyboard)
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| | Schronization Problems
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Hello all, I'm going to add to the list of HB that no longer work after not using it for about 1 month. I have included the listing from IC below, but here's some additional info. The board goes into bootstrap fine. Both lights go out and then the (...) (25 years ago, 28-Dec-99, to lugnet.robotics.handyboard)
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| | HB died - help needed
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Hi HBoarders! I have some troubles with my HB. I have set it up together with the expansion board, and it worked properly and very fine. Then once, unfortunately, the LCD, connected to the expansion board, touched one of the five motor-power diodes, (...) (25 years ago, 28-Dec-99, to lugnet.robotics.handyboard)
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| | I have a handy board and a memory problem
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I have installed the memory and am on the test where i try to download a program and start up the handy board..... (have it calculate 1+2;) The pcode and everything install properly but when i cycle the power, i get nothing, no beep, and the LCD is (...) (25 years ago, 28-Dec-99, to lugnet.robotics.handyboard)
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| | Interactive C and P-code
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Hi all, I have just startded using a Handy Board. In the technical specification it says "IC compiles into P-code, which is then interpreted by the run-time machine language" 1. What exactly is p-code. i mean the format etc.? 2. Is C and assembler (...) (25 years ago, 28-Dec-99, to lugnet.robotics.handyboard)
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| | Handy Board Kits ??
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To all you people out in robo land was wondering if any of you know were to find some cheap handy board kits? Ive got PCBs Im just looking for 3 complete sets of parts , or if PCBs are included thats fine as well. thanx in advance Roboman- PS; Do (...) (25 years ago, 27-Dec-99, to lugnet.robotics.handyboard)
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| | Re: speed control bytes
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Fram my reading of the pcode interpreter source, you only get the option of doing all motors or none by default. It doesn't look like it would be too difficult to modify the pcode to only do the first two motors. You can get the source at: (...) (25 years ago, 22-Dec-99, to lugnet.robotics.handyboard)
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| | Re: unknown error
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One obvious thing is that you must declare your local variables at the start of the function before any statements. Gary Livick (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
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| | unknown error
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i've IC version 2.82. whenever i load the program below, it keeps giving me an error on the line which 'INT SPEED_TABLE[]' is declared. what's wrong?? void main() { int i; start_press(); int speed_table[]= {0b00000000, (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
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| | speed control bytes
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i understand that when the PWM is off, the mask: 0b11111111 switches all motor ports on in the forward direction. but if the PWM is on, what bit string correspond to what speed? is it possible to have motor ports 0 and 1 controlled using PWM while (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
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| | pneumatic info
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Does anyone know of a good web site or book on basic design or general information about pneumatic systems. Thanks (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
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| | system_pwm_off
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The 'system_pwm_off' function comes standard with the 'lib_hb.c' file. this function switches the PWM off for all the motor ports. is it possible to turn the pwm off for a specific motor port while the others are able to run with PWM? i've a DC (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
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| | Motor driver circute problem Using L298N
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Hi guys, I built a Hbridge motor driver using the IC L298N. But it is not working properly. It is swithcing properly with the inputs but it is not drawing the current required for the motor. I am sensing the out Voltage as 8v but when i connect the (...) (25 years ago, 21-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Advice
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Need more information. What kind of "light" sensors are you referring to? CdS cels, IR light sensors, active sensors? There is alot of information on wiring sensors in the Handyboard manual available in the Documentation section of the MIT (...) (25 years ago, 20-Dec-99, to lugnet.robotics.handyboard)
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| | Advice
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How do I connect the light sensors to the board correctly? Cheri Burch (25 years ago, 20-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Futaba or Hitec servos
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(...) As always with the "what is better" question, I must ask... What do you mean by "better"? They will operate the same, I think they have the same cable pinout. The Hitec ones are cheaper usually, but a little larger for the same specs. At the (...) (25 years ago, 19-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Shaft Encoders
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(...) While I am not familiar with the LEGO Rotation Sensor (simply because I havn't got one yet), I have constructed, for the moment, a "homebrew" rotation sensor. My recent models have mostly been models of the robots we build at work. They are (...) (25 years ago, 18-Dec-99, to lugnet.robotics, lugnet.robotics.handyboard)
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| | Futaba or Hitec servos
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Hello, Which ones are better? Advantages/Disadvantages Are there any alternatives that operate the same way? Please share some experience. Thanks for any! :) (...) This message is for the named person's use only. It may contain confidential, (...) (25 years ago, 18-Dec-99, to lugnet.robotics.handyboard)
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| | HB heat problems, HB connectivity problems (Mac)
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I have two HandyBoards. One is having a severe heating problem on the second from the bottom chip on the left side. It is getting to the point that after a few minutes of being on, it is painful to touch. All of the solder points to that chip appear (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Help with IR receive
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thanks for the help. I just breadboarded the circuit with the RC circuit and the instability has gone away. Now I have to get the extra components on to the HB :) see the datasheet for details: (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Shaft Encoders
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Can somebody provide links to Information on Shaft Encoders. Thanks Kalyan Mulampaka Software Engineer e GE Information Services ___...___ Ph#: (770) 698 4436 (O) (770) 390 0887 (R) (25 years ago, 17-Dec-99, to lugnet.robotics, lugnet.robotics.handyboard)
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| | Re: Help with IR receive
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(...) substitute (...) These are NOT optional components. I saw the same thing with the IS1U60 if I didn't use the 47uf/47ohm low-pass filter on the Vdd input to the part. Use it, your problem will go away. have fun, DLC (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Here are your coupons
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Here are some coupons for you. No need to register your E-Mail address or anything else. Just print and save. Merry Christmas !! (URL) you feel that you have received this in error, please forward it back to sender and you will be removed from our (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Help with IR receive
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|
I just added the Sharp IS1U621 to my handyboard. That is apparently a substitute for the ISU160. When I run the simple test program: while (1) {if (4 & peek(0x1000)) fd(0); else bk(0);} my lights continuously flicker. When I put my logic proble on (...) (25 years ago, 17-Dec-99, to lugnet.robotics.handyboard)
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| | Firefighting robots
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I'm building a robot for the 2000 Trinity College competition. Since the goals of the contest are fairly complex and I'm new to programming, does anyone know of source code listings for a sumo bot? I've seen a bit of assembly source but I'm (...) (25 years ago, 16-Dec-99, to lugnet.robotics.handyboard)
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| | Mystery problem
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I have been having a weird non-fatal problem lately with my handyboard. I put some code into the other night that was simply calling the testanalogs() function on startup. The .lis file I used just loaded the hbtest.c and the file I wrote containing (...) (25 years ago, 16-Dec-99, to lugnet.robotics.handyboard)
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| | Re: servo motor design
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If you are using a Handyboard then what you probably want to do is simulate a servo motor rather than actually go through the effort of building one that behaves like the ones from a hobby shop. As an example, if you had a lego motor driving a gear (...) (25 years ago, 16-Dec-99, to lugnet.robotics.handyboard)
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| | servo motor design
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I know that designing your own servo motor is kinda stupid becoz they are abundant out there. but i'm in a competition which requires us to design our own gearbox, so i don't see a way out of it. how do i start? how do i design that feedback loop (...) (25 years ago, 15-Dec-99, to lugnet.robotics.handyboard)
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| | (no subject)
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unsubscribe (25 years ago, 15-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Driving an L298 motor driver board
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|
Hi, I done a PCB with the L298 H-Bridge. You just need to remove the L293D and but a special connector in the socket. You can drive motors (2) with 2A current. If you are interesting with this PCB send me a mail. kind regards, Nicolas. (25 years ago, 14-Dec-99, to lugnet.robotics.handyboard)
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| | Re: error message
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|
Sorry, but Interactive C does not support the "case" construct. You'll have to rewrite your code using "if...then" statements. Ross M. Tonkens, M.D. Medical Director Primary Care of Nevada 100 North Green Valley Parkway Suite 240 Henderson, NV 89014 (...) (25 years ago, 14-Dec-99, to lugnet.robotics.handyboard)
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| | Re: error message
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Kah Mun, sorry, IC does not support the 'switch' construct. re-write using if-thens. fred In your message you said: (...) t (...) (25 years ago, 14-Dec-99, to lugnet.robotics.handyboard)
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| | error message
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Whenever I run this simple program below, i get the following error message: "Fatal Internal Error: Illegal size to spew_peek_op(read local)". What does it mean?? Please help.. void servo(char balloon) { const float left_b=400.0; const float (...) (25 years ago, 14-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Inversine sine function
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|
This polynomial approximation looks better: ArcSin(x) = Pi/2 - Sqrt(1-x)*(a(0) + a(1)*x + a(2)*x^2 + a(3)*x^3 + a(4)*x^4 + a(5)*x^5 + a(6)*x^6 + a(7)*x^7 ) where a(0) = 1.57079 63050 a(1) = -0.21459 88016 a(2) = 0.08897 89874 a(3) = -0.05017 43046 (...) (25 years ago, 13-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Inversine sine function
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|
(...) You might give this a try (for -1 < x < 1): ArcSin(x) = x + a(1)*x^3 + a(2)*x^5 + a(3)*x^7 + ... etc. with a(1) = 0.1666666667 a(2) = 0.0750000000 a(3) = 0.0446428571 a(4) = 0.0303819444 a(5) = 0.0223721599 a(6) = 0.0173527644 a(7) = (...) (25 years ago, 13-Dec-99, to lugnet.robotics.handyboard)
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| | Inversine sine function
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Hello, I would like to calculate an inverse sine (arcsin) function for one of my application. Does anyone know the algorithm of this trigonometric function? Thank you, J.M. Mongeau (25 years ago, 13-Dec-99, to lugnet.robotics.handyboard)
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| | Re: L298 Motor Driver
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If you don't already have the L293D chips it would give you more current capability if you used the SN754410. It is pin compatible with the L293D and supplies 1A continuous versus 0.6A for the L293D, and they can be stacked just as Kam suggested for (...) (25 years ago, 13-Dec-99, to lugnet.robotics.handyboard)
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| | RE: L298 Motor Driver
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James, Have you considered stacking two L293D chips on top of each other, solder the legs together and add a heat sink? You should be able to drive motors in the 1A range. Just a thought. -kam (URL) (25 years ago, 13-Dec-99, to lugnet.robotics.handyboard)
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| | Driving an L298 motor driver board
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I'm trying to drive 2 larger DC motors that draw about 1A each. I am using a L298 motor driver board that is sold by HVWTech. I would like to drive it straight from the Handyboard and I'm wondering if I'm going about this correctly. Am I correct in (...) (25 years ago, 12-Dec-99, to lugnet.robotics.handyboard)
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| | Infrared receiver
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Hello, I'm currently doing a project that requires emitter and receiver, but I have a problem. For the emitter circuit, pulses is received from the programmed that I've programmed into the Xilinx, it then sent the pulses to the emitter and the (...) (25 years ago, 12-Dec-99, to lugnet.robotics.handyboard)
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| | Re: silly question or not??
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No, its not a stupid question. Just impossible. At least kind of impossible. If you want 32 more outputs using the board as-configured, forget it. With what is available for chip selects minus what you have used already, you can get 16 more. All (...) (25 years ago, 11-Dec-99, to lugnet.robotics.handyboard)
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| | silly question or not??
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Im sorry if this is a stupid question....... no1 has answered..... or does no1 know???? Hello everyone... I hav already connected a hc374 to Y0 of the expansion bus to get 8 digital outs, It works gr8. I need anouther 32 outputs which meens I need 4 (...) (25 years ago, 11-Dec-99, to lugnet.robotics.handyboard)
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| | pcbug11's talka.boo
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Hi, Does anybody have the asmhc11 source code of this little piece of software (talka.boot that is) ? Can't find anywhere on the motorola site. Also, if somebody knows a seriel port monitor for DOS, i'm *very* interested... Byebye, Hans (25 years ago, 10-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Piezo Rate Gyro and HB
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Hi Jan good job. I've done exactly the same thing :)))) I only use some assembler code to measure the time. In fact I have some code, that lets you measure a frequency or a pulsewidth ranging from about 30 Hz to 30kHz. If anyone wants the code (i've (...) (25 years ago, 9-Dec-99, to lugnet.robotics.handyboard)
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| | Re: You are not authorized to view this page
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big system failure has occurred. following is msg from our sys admins. fred as i'm sure you all have noticed, our most critial file server hub.media.mit.edu is having major problems. we are looking into it but do not currently have an estimate of (...) (25 years ago, 9-Dec-99, to lugnet.robotics.handyboard)
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| | Re: You are not authorized to view this page
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you can't even access www.media.mit.edu, it looks like they forbade foreign IP address from accessing the server. it is probably temporary. -p (...) (25 years ago, 9-Dec-99, to lugnet.robotics.handyboard)
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| | Re: You are not authorized to view this page
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Dr. Martin must not like us! I got the same message. - Nick - (...) (25 years ago, 9-Dec-99, to lugnet.robotics.handyboard)
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| | You are not authorized to view this page
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Hi! Trying to move to pages (URL) gives an "You are not authorized to view this page" error message. Anybody, have some idea what's going on? (25 years ago, 9-Dec-99, to lugnet.robotics.handyboard)
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| | Re: best HB kit source?
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|
Hello Jeff, Acroname now sells the HB kit. Looks to be better than Peter Hui's kit, and it includes IC 3.2 in the $220 price. (URL) don't have the expansion board that handles LEGO powered sensors and has servo drivers, but Douglas Elect. has the (...) (25 years ago, 9-Dec-99, to lugnet.robotics.handyboard)
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| | Re: best HB kit source?
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Check out (URL) luck! (...) ===...=== Kam Leang University of Utah Department of Mechanical Engineering MEB Room 2202 Salt Lake City, Utah 84112 ===...=== (25 years ago, 9-Dec-99, to lugnet.robotics.handyboard)
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| | Re: best HB kit source?
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Jeff, Check out (URL) They have Handy Board kits, and lots of other things. I work with the owner, Steve Richards, quite often, and they have a first class operation over there. Plus, the price is right. Good luck, Gary Livick (...) (25 years ago, 8-Dec-99, to lugnet.robotics.handyboard)
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| | best HB kit source?
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I want to build a handy board kit and am looking for the best source. advice? -Jeff (25 years ago, 8-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Excessive clutziness when replacing the NiCad battery
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Bill ... For spare batteries, take a look at B.G.Micro's BAT1024. They are two AA cells in series, 800mAh ... 10 batteries (20 cells) for US$5.95. I've made several spare HandyBoard battery packs using these cells ... and they all work great. (URL) (...) (25 years ago, 8-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Excessive clutziness when replacing the NiCad battery
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Hello, everyone: Many thanks to Chuck McManis and Nick Taylor for posting the simple and elegant solution to my problem: install an inline plug Gee, I wish that I had thought of that!. Thanks for the help. Bill Bynum (25 years ago, 8-Dec-99, to lugnet.robotics.handyboard)
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| | H-bridge chips
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1. Two quick question, when i type 'ps' at the C prompt, i always get the following: PID STAT PC SP ORG Tricks Executing 1 20 c200 fe01 fe00 10 <command line interaction> is that there becoz Interactive C is running or is that something else? 2. my (...) (25 years ago, 8-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Excessive clutziness when replacing the NiCad battery pack
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Hello Bill ... Here is what I've done on both of my HandyBoards and it's given good results. Cut the leads between the board and the battery pack and add 2-pin polarized connectors. Good luck and have fun, - Nick - (...) (25 years ago, 7-Dec-99, to lugnet.robotics.handyboard)
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| | Excessive clutziness when replacing the NiCad battery pack
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Hello, everyone: I'm having problems when I replace the HandyBoard's NiCad battery. I have probably replaced around 10 battery packs by now on different HandyBoards. On 4 or 5 of the replacements, I end up having to replace the 74HC373 latch, (...) (25 years ago, 7-Dec-99, to lugnet.robotics.handyboard)
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| | synchronization error
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I'm encountering a synchronization error when calling serial_putchar within a for loop. Here's my code: void test(){ int looper; for (looper=0;looper<16;looper++){ if (looper<7){ serial_putchar(analog(looper)); printf("\nPort: %d Value: (...) (25 years ago, 7-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Another chance for the LM35
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(...) Well, di you try to put an Operational Amplifier mounted in voltage following? +Vcc --- Op. Amp. | *-------* LM 35 O------|+ Vin | | | Vout|--\----- To 68HC11 Analog Port --- /-|- Vin | | GND \\\ | *-------* | \---...---/ Florent (25 years ago, 6-Dec-99, to lugnet.robotics.handyboard)
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| | Stepper motor
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Does anybody know whether it is advisable to control a 24VDC stepper motor using the handyboard's motor outputs (11V)? also, what's the maximum phase current the motor can have to be compatible with the handyboard? (25 years ago, 6-Dec-99, to lugnet.robotics.handyboard)
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| | Stepper motor
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Does anybody know whether it is advisable to control a 24VDC stepper motor using the handyboard's motor outputs (11V)? (25 years ago, 6-Dec-99, to lugnet.robotics.handyboard)
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| | IR files and sensors
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Two question i have: 1. On the Handyboard webpage, there're the files for the IR Remote Control software. it's a little long and complicated. i'm purely interested in activating the output ports and modulating it to transmit the 40khz signal and (...) (25 years ago, 6-Dec-99, to lugnet.robotics.handyboard)
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| | Another chance for the LM35
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Hi, I'm again trying to connect the LM35 from National, there was some posts in the list, but none of that solve my problem. As an introduction let me say that the sensor provides an output of 10 mV/ ° C at 10 mA, the conversion when reading it (...) (25 years ago, 6-Dec-99, to lugnet.robotics.handyboard)
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| | IC Technical Support problem
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Hi! I bought my first handyboard in mid October and a Rug Warrior Pro in early November. And since I have had this peculiar download problem with the IC 3.2, pcode will download without any problems but everytime after downloading the lib files, IC (...) (25 years ago, 5-Dec-99, to lugnet.robotics.handyboard)
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| | Re: strange TS-53 servo problem
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Hi ... It sounds as though you are obtaing the power for your servo from the HandyBoard's motor output pins ... and if so, this is the source of your problem. The HB does NOT control motor speed by varying the DC level ... it uses PWM to reduce the (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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| | strange TS-53 servo problem
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Since the output ports for the motors of the handyboard supplies 11V, i connected a 5V regulator to power my servo. i have a capacitor between the driver's + and - terminals. I looked at the control signal on the oscilloscope. The duration of the (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Virus
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Hi - Yes very well said -- on top of that HE may have been infected and we were the result of that infection. Sure can't see a guy putting out a virus with his name address phone and photo on it unless he is some really sick sucker! Regards - Dave (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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| | Re: Suggestions for Virus Management
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Hi - Yes I too received this virus - I did not open it though. We had a copy of it sent to where I work so I knew of it. I hope that very few of you got infected. Regards - Dave ----- Original Message ----- From: Evil Mechatron (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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| | plaintext ettiquette reminder
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Will you people with web-based or GUI-based E-mail clients *please* observe the following plaintext ettiquette rules? (1) turn off HTML (2) turn off vcards (3) turn off images in your .signature (4) don't send any kinds of binary attachments Vielen (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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| | Suggestions for Virus Management
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I'm inclined to agree. These things are not easy to trace. I think this guy was one of those people who wouldn't process the unsubscribe correctly. But, honestly, I can't find his name in my records. So really, I don't know who this guy is, let (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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| | RE: Virus
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kjleeUh, before anyone starts a witch-hunt, I'd suggest you examine the headers a little more closely. The message didn't come from this guy. Even if they did, I still wouldn't send him emails or bother him in any way - it's too easy to fake (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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| | Servomotor
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i'm using digital pin 9 to generate the control signal for my TS-53 servo. however when i try to make it move, it only turns a little bit for the first command but just stops there, the motor continues vibrating though. the idea behind my code: set (...) (25 years ago, 4-Dec-99, to lugnet.robotics.handyboard)
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