| | Re: using 3v motors?
|
|
In theory yes. Since the motor will be powered by the aux power supply only, as long as it is at 3 volt, it should be OK. (am I right, Prof. Martin?) -- Ray Wayne Crosbie <wcrosbie@home.com> wrote in message news:FuKHs7.B7v@lugnet.com... (...) 400 (...) (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
|
|
| | RE: hellofriend
|
|
Yes, definitely spam! | -----Original Message----- | From: Meabadboy@aol.com [mailto:Meabadboy@aol.com] | Sent: Sunday, May 14, 2000 3:48 AM | To: handyboard@media.mit.edu | Subject: Fwd: hellofriend | | | SPAM??? | | (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
|
|
| | using 3v motors?
|
|
Is there any way to use 3 volt motors on the Handyboard? They draw about 400 ma. Using a series resistor of about 10 ohms works, but it will have to be about 5 watts, consuming a lot of power needlessly. The FAQ shows how to run 6-36v motors through (...) (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
|
|
| | Fwd: hellofriend
|
|
SPAM??? (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
|
|
| | hellofriend
|
|
Date:14th.may,2000 Dear sir, it give us pleasure to request your indulgence in this extremely CONFIDENTIAl business proposition which we want you to handle for us IN YOUR PRIVETE CAPACITY. This total believe and reponse of trust in you, is in (...) (24 years ago, 13-May-00, to lugnet.robotics.handyboard)
|
|
| | Running as11
|
|
Hi, Has anyone been able to run as11 on a Mac? As a first test of the assembler, I've been trying to re-assemble pcode.asm, without success. Specifically, as11 balks at the preprocessor directives. I tried running pcode.asm through the CodeWarrior (...) (24 years ago, 13-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: Household Positioning System Re: DGPS
|
|
I see. Humm. May be I can really use this. OK, if I put a few IR LED with ID at different locations in the room, and put them at the same height as the robot sensor so I don't need to worry about tilt angle. If I put the sensor fixed on the robot, (...) (24 years ago, 12-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: Household Positioning System Re: DGPS
|
|
Actually, I am going in that direction. I was trying to use the ultrasonic transducer to produce a signal and then use two detector to triangulate the location. That wasn't much of a success. I will need to redo the parts. I want to try using more (...) (24 years ago, 12-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: Household Positioning System Re: DGPS
|
|
(...) Some years ago i wrote the presentation part of a prototype system based on ultrasonic beacons. the beacons were plugged into wall outlets and transmitted their ID:s, i can't remember the details but the beacons were syncronized by (...) (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: Household Positioning System Re: DGPS
|
|
(...) No design, just an idea. The way I see it, you put a "Head" on the top of your robot. It has three sensors mounted for tilt and pan. The easiest way I can see it is to use gear head stepper motors with a "Home" switch to point the thing. The (...) (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
|
|
| | (no subject)
|
|
unsubscribe (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
|
|
| | AS11_IC assembler
|
|
Dear All I'm trying to use the AS11_IC assembler which comes in the pcode_pc zip file. I'm getting 'file not found' and 'can't open' messages left, right and center. All the necessary files seem to be in the right directories, except for ascpp1.asm (...) (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: expansion board problems
|
|
Claudia Bernett wrote: <snip> (...) <snip> I wonder if the mats aren't perhaps generating electrostatic discharge (ESD), which can wreak havoc with many solid state devices. -- Will (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: expansion board problems
|
|
Claudia, Without a lot more detail, it will be difficult to solve this one over the internet. If you can take a few minutes and regroup, maybe someone will have an idea. The kinds of things it would be good to know, interspersed with my comments: 1. (...) (24 years ago, 10-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: expansion board problems
|
|
a follow-up to my own message - it seems that this problems occur WHILE i am actually running the application and using the project. if anyone can help at all - i would be very grateful, i am at a loss and urgent to get this working. i have built (...) (24 years ago, 10-May-00, to lugnet.robotics.handyboard)
|
|
| | Re: Household Positioning System Re: DGPS
|
|
Cool idea. Do you have it working? Or do you have a schematic that is somewhat working? If so, I want to test out how accurate it will be. It will be fun to use the LED as landmarks in the building. -- Ray <handyboard@media.mit.edu> wrote in message (...) (24 years ago, 10-May-00, to lugnet.robotics.handyboard)
|
|
| | guipossebon@zipmail.com
|
|
Hello people: I´m a student from PUCRS(Brazil) and I have to finish my conclusion Work in my course(Mecatronical Engineering) and I need to Know how I modify the frequency in MC68HC11 set in 500Hz to 5KHz because the drivers need work to control a (...) (24 years ago, 10-May-00, to lugnet.robotics.handyboard)
|
|
| | Sonar (yes, it's me again, with more sonar questions!)
|
|
Today several members of my lab and I decided to solder together the sonar assembly which had been previously been held together by large quantities of duct tape. We decided the 9-pin connection strip would be too flimsy and unnecesarily difficult (...) (24 years ago, 9-May-00, to lugnet.robotics.handyboard)
|
|
| | RE: Household Positioning System Re: DGPS
|
|
Can we use RF for the communication? The concept is much like the actual GPS systems, triangulate the position with 3 or more signals looking forward for a system like this Kalyan (not an Electronics engineer) -----Original Message----- From: (...) (24 years ago, 9-May-00, to lugnet.robotics.handyboard)
|
|
| | Household Positioning System Re: DGPS
|
|
(...) How about a beacon system. Each room can have 3 or so beacons high on the wall. Each beacon flashes at 38Khz and each beacon modulates this 38KHz with its own personal code. The top layer of your robot would have 3 or 4 directional sensors (...) (24 years ago, 9-May-00, to lugnet.robotics.handyboard)
|