 | | Re: Beginner's questions...
|
|
(...) You'll need slotted disks mounted on the axles positioned between the emitter and the detector. I recommend using ones from a dead computer mouse. (...) You ought to check for wiring problems and excessive friction in the gears and axles. That (...) (26 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | RE:Handyboard project
|
|
Hi James, I purchased an assembled and tested H Board from Patrick Hui for about $200, as well as the registered version of IC. Also got his sensor kit ($15). Expansion Board was purchased from Gleason for $59. Also bought the sensor/motor kit from (...) (26 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re:Re: Beginners questions
|
|
I got the gear sets from HVW Technologies in Canada. (URL) gear sets were pretty cheap when you take into account the exchange rate - about $20 for two. They come with motors but youll have to swap them with something else because the motors are (...) (26 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | etching a handyboard
|
|
What is the best way to manually etch the handy board, i've etched it by passing the circuit layout through the printer 3 times then ironing it on to the copper board. This works well but some traces bleed together. I have access to a PCB repair (...) (26 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Canadian Boarder
|
|
Digikey has a Canadian division also, its based out Ontario. I just recieved a list and they mostly everything on the list that has digikey beside it but nothing else. The total cost for these parts is $60 + or - $5. I hope this helps, where are you (...) (26 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Beginner's questions...
|
|
Hello again all, Well, I've got an HB, HB Expansion board, geared motors (motors from Gleason, gears from HVW, "mashed" to fit), some good batteries and a downloader. I've also got sensors such as QRB1114 infared detectors, some General Electric (...) (26 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: I need a little help with understanding processes
|
|
The most common problem many people have regarding processes is that they incorrectly assume you should call start_process repeatedly in order to keep a background process running. This is completely wrong, and it will crash the system one way or (...) (26 years ago, 10-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Polaroid Sonar Questions
|
|
Good comment, Duncan. I intend rotating the 45° coverage through a full 360°. Using multiple transducers allows for more frequent pings and (I think) will provide greater resolution. - - - Nick - - - (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Purchase a handyboard? where???
|
|
Hi all, I want to know if Anyone will be selling the handyboard @ the Trinity firefighting home robot contest this year in Conn? also any links to where I can get one otherwise would be much appreciated. thanx -Mike (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | I need a little help with understanding processes
|
|
Hi: I know the essential facts about IC's multitasking facilites and how to implement processes. But if you have too many processes is it normal for the board to reset? If so, how can it be prevented. Also how do I figure out for how many ticks to (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Polaroid Sonar Questions
|
|
I'm looking for help/advice with my sonar setup. At present I've got a single sonar connected to the new Expansion Board and have been doing a calibration. My goal is to use four transducers to cover a 45° arc. Here are my problems/questions: 1. How (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | MC 68HC711 E9CFN2 - please help me as soon as possible!!!!
|
|
Hi! Please Fred Martin or somebody please help me on this! I'd like to know if the MC 68HC711 E9CFN2 chip can be used with the HandyBoard. It has 12 kB of internal EPROM, I've never seen a smd eprom chip, but I don't need the EPROM. The case is that (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Downloading
|
|
Thanks for the new Downloader_MCL Fred!! Finally I can reliably download the pcode to my Handyboard. I've had my board for some time now and had almost given up hope about ever using it. However, the new downloader works perfect. Now I can get into (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | before to try to unsubscribe
|
|
I have been a member of this list for a while now. I enjoy this list very much and find it to be very useful and helpful. The issues that the members bring forward are great and the support/attention that Fred G. Martin gives to the list is out of (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Stupid multiple sonars...
|
|
a small signal diode like 1N914 should do. -----Original Message----- From: Ian Hojnicki <damasta@camelot.bradley.edu> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: Tuesday, February 09, 1999 12:16 AM Subject: Stupid multiple (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | unsubscribe
|
|
I would like to unsubscribe the mailing list Thank you (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Re: IR
|
|
hi! we are currently doing our thesis and we find it difficult to program and connect the IR to the HB. could anyone please help???? -theresa (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Stupid multiple sonars...
|
|
I guess I have a really simple question to ask... I know that I can share many of the lines off of the SPI in order to hook up two polaroid sensors... However, is it really necessary to add a diode to each of the ECHO lines? If so, what are the (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | Color sensor
|
|
Fred and others, I was the one who posted some questions regarding on ball sensors, and thanks for all those varied replies. I am also considering a color sensor, since tennis ball have a distinct color - I supposed that a color sensor is enough. I (...) (26 years ago, 9-Feb-99, to lugnet.robotics.handyboard)
|
| |
| | 68HC11 Emulator for Win-32
|
|
The March, 1999 issue of Dr. Dobb's Journal has an article about WOOKIE, a windoze based emulator for 68HC11 software development. It looks interesting. The source and an executable are available as freeware from: (URL) - - - Nick - - - (26 years ago, 8-Feb-99, to lugnet.robotics.handyboard)
|
