Subject:
|
RE: Memory & Sound Detection
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Tue, 1 Jun 1999 19:34:30 GMT
|
Original-From:
|
Jose Luis De Filpo <hal9000@cvtci.com.ar+avoidspam+>
|
Viewed:
|
1091 times
|
| |
|
|
Thank You, i have downloaded the circuit from the URL :
www.hooked.net/~jfong/public/Computers/fingerboard/schematics/fb_interface.p
df
, and i have another question, can the 5 V. pin of the analog input drive
this circuit, How much current can draw this pin? Maybe I must take the
power from another source.
Thank You
José
Luis
----- Original Message -----
From: <orthner@idirect.com>
To: <handyboard@media.mit.edu>
Sent: Sunday, May 30, 1999 9:47 PM
Subject: Re: Memory & Sound Detection
> At 08:14 PM 5/30/99 -0300, Jose Luis De Filpo wrote:
>
> > Is there a way to remove a program from the memory of the HB
> > without downloading the PCode? , for example i have two programs in • memory,
> > and i want to remove only one of them, is it possible?
>
> Umm, not sure what exactly you are asking here. If you have programs • loaded
> in the HB, then you also have the pcode downloaded. At the IC prompt type
> "unload filename.c" and the file will be removed from the HB.
>
> > Also i am looking for a way to use 2 or 3 electret mics to make • the
> > robot follow sounds, I know that is needed a preamp between mic and • analog
> > input, but I'm not sure about the circuit to be used. Has someone tried
> > this?
>
> This was done ten years ago on squirt, a very tiny MIT (olympic robot
> competition era) robot. The sound was localized via the difference in
> amplitude between two microphones. This circuit is in the olympic robot
> building manual (A.I. Lab memo #1230)and the paper on squirt (memo #1120).
> A similar circuit was used on the rug warrior, I think. That circuit is
> available on the EAS site at:
>
>
http://www.hooked.net/~jfong/public/Computers/fingerboard/schematics/fb_inte
> rface.pdf
>
> I think a better (more directionally accurate) method would be to use
> timing differences and use three microphones. To that end I've been
> considering programming a PIC to do the timing and then just (serially?)
> output the direction information to the HB.
>
> Hope this helps, Duncan
|
|
Message is in Reply To:
 | | Re: Memory & Sound Detection
|
| (...) Umm, not sure what exactly you are asking here. If you have programs loaded in the HB, then you also have the pcode downloaded. At the IC prompt type "unload filename.c" and the file will be removed from the HB. (...) This was done ten years (...) (25 years ago, 31-May-99, to lugnet.robotics.handyboard)
|
4 Messages in This Thread:
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
