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9065Re: [SeattleRobotics] way beyond a newbie....

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  • Doug Heckaman
    Nov 1, 2001
      Board-of-education is a good one. you can buy classes that teach you how to
      use the stamp all the way up to programming your robot called BOE-Bot
      ----- Original Message -----
      From: Campbell, Barrie (N-CDI Corp) <barrie.campbell@...>
      To: 'dragnfyr' <dragnfyr@...>; <SeattleRobotics@yahoogroups.com>
      Sent: Thursday, November 01, 2001 11:53 AM
      Subject: RE: [SeattleRobotics] way beyond a newbie....


      > You have a number of options.
      >
      > Get a processor evaluation board and a good book. The '11 is a pretty
      > advanced chip,
      > but with a good book and an intuitive language like sbasic, (I think 681x
      > asm is pretty intuitive, but...)
      > you could go far. Get the book first. Go to the local library or book
      store
      > and read the book before
      > you buy it, then get the processor to match. Don't buy an 11 because I
      said
      > so, other processors
      > like the PIC or Stamp have cheap boards with excellent references.
      (anyone
      > have a good package to recommend?)
      >
      > Take a class at the local college/university. I got my start in a
      > microprocessor course. Stay away from high-level
      > languages like C, C++ or Java, as these courses tend to be application
      > oriented and do not address hardware.
      > The class I took was in the Engineering curriculum, not the CS side. CS
      > offered a "Small Systems" course for
      > Intel assembly. That class learned PC IO programming that could be used
      to
      > control a robot from a PC.
      >
      > Start with RC controls. Many of the robots in SRS use hobby servos for
      > movement and control. These can be
      > used with a traditional RC receiver, or patched into a microcontroller. A
      > working RC robot is simple to retrofit w/ a
      > brain.
      >
      > Stick with your strengths. If you build a switch controlled robot, it is
      > relatively simple to replace the switches
      > with relays. You can then gradually introduce more advanced
      > electronics/software as you learn. A reversing motor
      > controller can be made w/ 2 SPDT relays or 2 SPDT switches, you dont get
      pwm
      > control or PID, but it will move.
      > There will be plenty of time to add such things as you are more
      comfortable.
      >
      > Books on electronic circuits, logic, or one of the many robot building
      books
      > would be a good reference as well. Go
      > to the bookstore, read a bunch of books, buy the one that you understand
      the
      > most (the one that you say "I could do that!")
      > and get to work.
      >
      > If you are going to take a course, post a link to the description here and
      > we could tell you if it is what to expect. We could
      > recommend books, kits or web pages to read. (plug your favorite
      > site/board/book here)
      >
      > Of course, read the Encoder, and post questions here.
      >
      > Have Fun
      > TE
      >
      > -----Original Message-----
      > From: dragnfyr [mailto:dragnfyr@...]
      > Sent: Thursday, November 01, 2001 3:16 AM
      > To: SeattleRobotics@yahoogroups.com
      > Subject: [SeattleRobotics] way beyond a newbie....
      >
      >
      > I joined this list in hopes of learning some robotics, and I believe
      that
      > I will, however I am way below most of you on the robotics scale it
      > appears... Are there web sites and/or other groups like this where I can
      > learn the basics of robotics? The mechanics I understand, but how to
      > integrate that with the electronics and its coding have me at a loss.
      >
      >
      > To the gentleman (or lady) who was trying to figure out how to mount a
      > bearing, THAT I know the answer to assuming you have access to a drill
      press
      > or drill. I can suggest two fairly easy ways of mounting a bearing if it
      has
      > an inner and outer race. The first way is to simply sandwich the bearing
      > between two pieces of metal bolted together around the flat sides of the
      > bearing with a hole thru each side for the shaft and inner race clearance.
      > The second is two use two plates and the frame of the bot, all three
      > drilled for the bolts to hold them together, the outer and the frame also
      > have the hole for the shaft and inner race, the center plate is the
      > thickness of the bearing and has a hole the size of the bearing drilled in
      > it so that the outer race fits inside it snuggly. Either way is doable by
      > someone who understands the mechanics of a bearing, or can be machined for
      > just the right appearance if you are also going for looks. Hope this was
      > of some help
      >
      > Drag
      >
      >
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