 | | Re: GP2D05 (correction)
|
|
I apologize for the previous mail on the GP2D05 subject. The information I gave was base on my careless assumption (duhh) which was also wrong. Once again, I am sorry for any inconvenience. =o( Rob (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Re: GP2D05
|
|
I am using the GP2D02 which is also identical to the GP2D05 except that on the GP2D05 you can manually set the threshole using the built-in trimpot. I am using Barry Brouillet driver for interfacing to the Handyboard/w expansion board and it works (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Not necessarily the handyboard....
|
|
I have an old 486 laptop and a few motors and sensors lying around...Does anyone know of a DSP board or some other device I could use to interface the motors and sensors to the laptop for real- time data aquistion? (I already have my handyboard (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Re: stalled motor detection
|
|
If a motor stalls, it draws a lot of current (compared to normal operation). You can measure that quite easilyusing dedicated chip, or by measuring the voltage over a small resistor in series with the motor: if more current is draw, the voltage drop (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Re: stalled motor detection
|
|
Shaft encoders are hard to beat. If the wheels are commanded to turn and aren't, that's a good indication that something is screwy. Plus, if you're doing dead reckoning, you need them anyway so they are already there! Gary Livick (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | stalled motor detection
|
|
Hi all, I'm working on a dead reckoning 'bot. I'm not really interested in what the wheels are doing unless they're stalled. Anyone know any good tricks for monitoring the motor current, or should I go with shaft encoders anyway? Thanks! Paul (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar Sensor
|
|
Danny, The Polaroid 6500 is very common, and if you have the expansion board on your HB you have a built in connection. There are drivers on the MIT HandyBoard site. The units are available from Acroname and they also have a good fact sheet. (2 (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar Sensor
|
|
(...) Yep, I've checked out about every page I've seen on this. I just haven't had the time to do it yet. :| As soon as our competition is over and classes settle down (maybe in 3 years :()) I will get a chance to experiment with it. When will you (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar Sensor
|
|
Try the Polaroid sonar sensors available from (URL) HB site has the info on how to hook it up to the Handy Board including the IC drivers. The Polaroid sonar works very well! Good luck, kam (...) ===...=== Kam Leang University of Utah Department of (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
| |
| | Sonar Sensor
|
|
I'm designing a robot detection/obstacle avoidance system. And I want to install some Sonar sensor. I'm wondering if anyone would know of any good sonar sensor that can easily be used with the HB and that give good results? Any info on this would be (...) (25 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
|
