|
 | | Re: Analogue sonar design.
|
| Jeroen van der Vegt, Let me suggest some articles. First "Sonars on the Cheap" by Keith Payea page 20 of the Fall 1995 issue of The Robotics Practitioner. This looks lie about a $30 design. Second "An Experimenter's Cheap Robotic Sonar System" by (...) (26 years ago, 26-Aug-98, to lugnet.robotics.handyboard)
| |
|  
keith
(score: 0.931)
|
|
| | Stepper Motor.
|
| I would like to have my HB controlling a stepper motor. It's a 4-phase unipolar permanent magnet motor. The names of the inputs are like this: 1 - stepper phase #1 2- '' '' #2 3- '' '' #3 4 - '' '' #4 5 - stepper common #1,3 6 - stepper common #2,4 (...) (26 years ago, 24-Oct-98, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.931)
|
|
| | Motor output
|
| Hi! When I work with the motor outputs, I found that the outputs are not linear. The "motor(m,p)" changes the output only in an increment 10 of p. Is there anyway I can get a more presiced output? Thanks. Keith (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.931)
|
|
| | download without interface board
|
| I was wondering if there is a way to directly connect to the handyboard, without the interface/charger board. Perhaps using the interface cable from a miniboard. can I download a program the same as the miniboard. If anyone has any experience with (...) (26 years ago, 8-Feb-99, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.931)
|
|
| | Re: Stepper Motor
|
| I am also trying to use steppers motors from an old floppy, if anyone has accompished this I am interested in your result and methods Keith (...) (26 years ago, 14-Feb-99, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.931)
|
|
| | Re: r/c servos
|
| okay.. how about this.. avg servo needs.. 60hz pulses.. 1.0ms pulse width = end point 1.5ms pulse width = middle of rotation 2.0ms pulse width = other end point that is the form of the data to the servo. so you need to out put pulses 60 times a (...) (25 years ago, 20-Aug-99, to lugnet.robotics)
| |
|
keith
(score: 0.931)
|
|
| | My reset blues
|
| Hi all, I have problems running my program after downloading it to my HandyBoard. After what Maz Rahm (thank you very much Maz Rahm) replied to Keith (thanks to you too Keith) that in order for the program with the main function in it, to run, I (...) (26 years ago, 27-Sep-98, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.930)
|
|
| | Re: Sonar and RF Modem questions
|
| (...) <snip> (...) I just took a look at the Linx site, and while perusing the fine print at the end of the price list came across this: "Linx requires the purchase of an evaluation kit prior to the sale of individual modules to any customer. This (...) (26 years ago, 17-Feb-99, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.930)
|
|
| | Re: Stepper Motor.
|
| Keith, At first blush I would suggest the following connections: Motor Out 0 1 - stepper phase #1 Motor Out 1 2- '' '' #2 Motor Out 2 3- '' '' #3 Motor Out 3 4 - '' '' #4 Ground 5 - stepper common #1,3 Ground 6 - stepper common #2,4 Your program (...) (26 years ago, 25-Oct-98, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.930)
|
|
| | Droid Developer Kit
|
| I just purchased the Droid Developer Kit at the new ZanyBrainy in Peoria AZ. Looks like I'm the first!!!! And the rest of the weekend is spoken for!!! (25 years ago, 28-Aug-99, to lugnet.robotics)
| |
|
keith
(score: 0.930)
|
|
| | Bypass for 8428 game?
|
| Hi! Do any of you out there who own a 8428 dune buggy know of a way around the arcade game so that I can see the other car designs and don't end up getting carpal tunnel syndrome in the process? Keith Blumenthal (25 years ago, 18-Feb-00, to lugnet.technic)
| |
|
keith
(score: 0.929)
|
|
| | Re: Bipolar Stepper Motors
|
| First thing take an ohm meter and "read" your coils. From any wire you should have one other wire at a low resistance and two at a high resistance. This will first determine if you have it wired right. On my steppers the outside two form one coil (...) (26 years ago, 1-Mar-99, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.929)
|
|
| |
|
keith
(score: 0.928)
|
|
| | PID Code
|
| Hi all! I am using the handyboard as a PID controller. I wrote my own program it didn't perform really well. Is there any resource about PID using HB so I can furnish my program? Thanks a lot!! Keith (26 years ago, 22-Nov-98, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.928)
|
|
| | Re: Adult Lego Mania, Technic Strain
|
| I am much like you Ari in that I'm 30 and have the caught the bug also. I've purchased many advanced Technic sets in the past few months (8000,8001,8002,8417...2,8480,DDK & RIS). I have enjoyed them very much as well. I've found that while Lego can (...) (25 years ago, 1-Mar-00, to lugnet.technic)
| |
|
keith
(score: 0.927)
|
|
| |
|
keith
(score: 0.927)
|
|
| | Re: Help with pointers
|
| (...) When you do pointer arithmatic, you work in increments of what the pointer points to. So if you have a pointer to an int, as in the above example, when you add one to it, you actually make it point to the next int, not the next byte or word. (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.926)
|
|
| | Re: 8462 Super Tow Truck
|
| (...) Rob, I got the 8462 Tow Truck a couple of months ago and it is quite attractive and challenging to build. Definitely worth getting. In order for it to tow the 8448 Super Street Sensation you need to slighly modify the tire holder on the 8462 (...) (25 years ago, 13-Mar-00, to lugnet.technic)
| |
|
keith
(score: 0.926)
|
|
| |
|
keith
(score: 0.926)
|
|
| | Re: Help needed!
|
| If you're having problems getting your HB to work on one serial port but it works on another, you might want to check for IRQ conflicts. By default, Com1 and Com3 both are assigned IRQ3, and Com2 & Com4 are both assigned IRQ4. So if you have a modem (...) (25 years ago, 31-Mar-99, to lugnet.robotics.handyboard)
| |
|
keith
(score: 0.926)
|
