 | | Slower serial connection
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Is it possible to slow down the speed of the serial interface on the Handyboard? I have just gotten hold of a couple of RF transmit/receive pairs, but they are only able to go up to about 1200 baud or so. I don't intend using IC over the link, just (...) (25 years ago, 16-Feb-00, to lugnet.robotics.handyboard)
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| | Re: serial output
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you're not going to be able to generate accurate bit times using Interactive C -- it'd have to be an assembly language driver. use the 9600 baud output driver located at (URL) your message you said: (...) (25 years ago, 16-Feb-00, to lugnet.robotics.handyboard)
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| | serial output
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hi i want to send a byte as a series of bit to a transamitter module i am using. the FAQ says i can use the digital 9, or SPI port or TOC3. i can output to these ports. the first problem is getting the delay times between bits. if i use the msleep() (...) (25 years ago, 16-Feb-00, to lugnet.robotics.handyboard)
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| | Lcd displays for the Handyboard.
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Folks, Now and then I see people searching for LCD displays for the HandyBoards. I just came across some at a local surplus store. I purchased extras, and I'm will part with a few. These are new Vikay 2x16 lcd's, in a sealed bag. How about $5.50ea (...) (25 years ago, 16-Feb-00, to lugnet.robotics.handyboard)
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| | array of char in IC
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Hi, I am using IC. In my program I have an array of char (char serial_get_buffer[256]) as a global variable. This variable is used in a function. I want that when ever this function is called the array should be initialized to NULL. I tried (...) (25 years ago, 14-Feb-00, to lugnet.robotics.handyboard)
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| | Radio control w/ handyboard
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Hello all, I expect my handyboard to arrive in the mail within a few days... so I am playing around with some ideas of what I want to accomplish with it. my question: has anybody integrated a radio controlled car remote (wireless) with a handyboard (...) (25 years ago, 13-Feb-00, to lugnet.robotics.handyboard)
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| | Re: I have Rug-Warrior Project!
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You can check with Mouser Electronics (800) 346-6873 with the following link to order: (URL) Mouser Stock Number for the plastic enclosure is 537-402. It has many different colors. Best Regards, Patrick Robot Store (HK) (URL) Message----- From: (...) (25 years ago, 13-Feb-00, to lugnet.robotics.handyboard)
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| | I have Rug-Warrior Project!
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Dear Fred: I'm a Mechanical Engineering student in University California Irvine. I have project of building handy-board for my digital course.Now I've statred assemling but I have problem for supplying some parts.The parts which I need are 4 self (...) (25 years ago, 13-Feb-00, to lugnet.robotics.handyboard)
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| | Re: New Computer Connection
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The second port needs to be enabled in BIOS and you must have enough free IRQ's to accomodate it. Email me offline if you have questions. (...) (25 years ago, 13-Feb-00, to lugnet.robotics.handyboard)
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| | New Computer Connection
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Hello, I had the serial cable connected to the com port that was not working. I went to Control Panel System, device manager Ports[COM&LPT] Communications Port[COM1] Only one com. port is listed here but I have another serial port physically next to (...) (25 years ago, 13-Feb-00, to lugnet.robotics.handyboard)
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| | new computer connection
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Greetings All, Have purchased a new computer and cannot communicate with my handy board. I remember some time back in the mail archives that some settings had to be changed if the computer was too fast for IC but cannot find it now. Computer has a (...) (25 years ago, 13-Feb-00, to lugnet.robotics.handyboard)
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| | Re: (no subject)
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(...) The obvious question is how you are measuring your capacitor and resistor values?. Resistors (presumably metal film), are typically +/-1%, but capacitors are unlikely to be 'better' than +/-5%, and may be significantly worse than this (many (...) (25 years ago, 12-Feb-00, to lugnet.robotics.handyboard)
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| | Re: 41Khz not 38KHz
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The 3.81K resistor is probably more accurate than its rated 1%, but the capacitor may be much less precise, unless you got a tight tolerance metal film one, (as I think the part list specifies). Precision also relies on the thresholds of the Schmitt (...) (25 years ago, 12-Feb-00, to lugnet.robotics.handyboard)
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| | (no subject)
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Maybe somebody could help. I am try to use the IR output. the problem is that the HB is modulating the signal at 41kHz and I need to get it down to 38kHz. I have checked the resistor and capacitor used in generating the frequency. R = 3.81 K C = (...) (25 years ago, 12-Feb-00, to lugnet.robotics.handyboard)
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| | encoder chip
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Hi, does anyone know how to interface the hewlett packard decoder IC to Handyboard? Regards,William. (25 years ago, 11-Feb-00, to lugnet.robotics.handyboard)
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| | Re: IC routine for ranging and angle finding with the GP2D12
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Following up on my challenge to get some things happening here..... Following is an IC routine that can be used to find angular displacement from and distance to a wall. It uses the Sharp GP2D12 IR ranging module mounted on a servo to do the (...) (25 years ago, 10-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Shaft encoders interfacing with Handy Board
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I've had great success using Hall-effect magnetic sensors as shaft encoders with the Handy Board. The sensors are the type that Patrick Hui (of the Robot Store HK) includes in his HB sensor kit. I glued small disk magnets into the holes in a pair of (...) (25 years ago, 10-Feb-00, to lugnet.robotics.handyboard)
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| | Shaft encoders interfacing with Handy Board
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Hi everybody I'm trying to find an encoder to work with my Handy Board(using a DC motor). Please help me if you know anything about Shaft encoder(S1 optical encoder)interfacing with Handy Board. Can i use the Shaft encoder? Do you know how to (...) (25 years ago, 10-Feb-00, to lugnet.robotics.handyboard)
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| | Handyboard for Sale
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I bought a handyboard for my Thesis to do some data aquisition....now that I am done and out in the working world I don't think I am going to need it anytime soon. (Unless I go for my Phd :) ) Anyway, it is fully assembled and works fine. Comes with (...) (25 years ago, 10-Feb-00, to lugnet.robotics.handyboard)
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| | Re: IC Problems
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(...) Christian, I had similar problems with my handyboard twice. The first time the expansion board was causing the problem, so if you are using the expansion board, try to run dl without it. Fortunately I was in the lucky situation to have two (...) (25 years ago, 10-Feb-00, to lugnet.robotics.handyboard)
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| | IC Problems
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My problem is in running downloader. I am supplying power directly to the board but all that it displays is top row of black boxes which are kind of faded. Then I run the downloader program and it says it worked but the welcome message doesn't come (...) (25 years ago, 10-Feb-00, to lugnet.robotics.handyboard)
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| | Re: some action around here
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Hey, Handy Board people! I don't know if anybody has noticed, but this group is dead, dead, dead! It's time to get things going. Maybe people have some neat projects going on to tell us about. I have a robot I'm working on that you can read about on (...) (25 years ago, 9-Feb-00, to lugnet.robotics.handyboard)
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| | hbtest.c / "testdigitals();"
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Dear Reader, I'm assembling a handyboard-kit form Acroname and I've reached the step of testing Digital Input Circuit. After loading hbtest.c I try to start "testdigitals();" and the following happens in the IC-Window: Downloading 24 bytes (adresses (...) (25 years ago, 9-Feb-00, to lugnet.robotics.handyboard)
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| | Re: LCD
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(...) ______ ______ ---...--- |_ _| |_ _| Kam Leang | |______| |______ University of Utah | |_ _| |_ _| Department of Mechanical Engineering | | | | | | | | MEB Room 2202 Salt Lake City, UT 84112 | |_|__|_| | | | (Tel) 801.581.7105 (Fax) (...) (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | LCD
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Does anyone know where I can my the whole LCD unit for the handyboard? Gleason sells assembled ones only. please reply km (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Battery Capacity
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(...) I am using 8-NiMH-AA-cells, 1100 mAh each, without any problems. For German Handyboard users: www.reichelt.de sells either single sells or a soldered pack of batteries. Actually you can even get upto 1700 mAh-cells (no experience with those (...) (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | [OT] Re: Wav2Asc
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(...) PE Micro has a program that converts binary into S-records. (URL) you may want to look into a program called Sox. Sox converts just about any sound format into just about any other. You could, trivially, convert a WAV file into a pulse code (...) (25 years ago, 8-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Scott Edwards Electronics web site is: (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: Battery Capacity
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I suppose that maybe your NiCd cells are just nearing the end of their useful life. Either that, or you have a wiring problem somewhere in the power circuit. Also, it's generally not a good idea to mix different types of cells (different capacities) (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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where would i get a SSC? (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Battery Capacity
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Hi all, Ive been having problems with my bots supply for a while now. The problem is that the motors (LEGO 9v ) seem to be drawing too much current. whenever my bot changes direction or trys to accellerate from a standstill, the board resets. Im (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Wav2Asc
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Im after a program to convert a Wav sound file to Ascii to be able to burn it to eprom. Can any1 help ? (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: DC motor
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Its sound like your motor is drawing excessive current, thus resetting your Handy Board. You might want to beef up to a higher capacity battery or you can try running your servos off an external power source. Good Luck. (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Need a clock signal to interface encoder chip
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I am trying to interface an HP quadrature-type encoder to the handyboard using the HP HCTL-2016 encoder chip. The problem is that the chip requires a clock signal to synchronize the data latching and transfer functions and I am not sure which type (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: DC motor
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Thanks for your reply, but before i remove all the elecrtonic part inside the servo, i have cut out all the mechanical part, but the problem still happen, do you know why ?? thanks.. (...) (25 years ago, 7-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Thanks for the tip! I am new to this, and I am really anxious to build robot with legs. I don't know much about PIC (yeah, what does that stand for anyway? :-p), but knowing that PIC is what I need, I can at least get start on finding books on (...) (25 years ago, 6-Feb-00, to lugnet.robotics.handyboard)
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| | Re: DC motor
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It sounds like you might have a mechanical, rather than electrical, problem. Servos typically have some sort of stop nub on the gears so that they can't rotate past a certain point. If you don't cut off the nub with a hobby knife or saw, the motor (...) (25 years ago, 5-Feb-00, to lugnet.robotics.handyboard)
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| | DC motor
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Hello.. i am a beginner of using HB and i have some problem hope you can help me.. thanks.. I have hacked a servo motor to become a DC motor (by removing all electronic parts inside the servo) and plugged the "motor" into the motor port. but when i (...) (25 years ago, 5-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hall effect sensors
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(...) Oops, I jsut realized that your question was about HB, and I was replying about Mindstorms. I don't know whether this Hall Effect sensor will work on HB. Sorry. (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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| | Re: hall effect sensors
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(...) Knudsen in his book (p 223) uses Digi-Key part number DN6847SE-ND, which, he says, is "sticky" in the sense that it remains set until explicitly reset. I have no experience with it. (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
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