Society of Robots - Robot Forum
General Misc => Robot Videos => Topic started by: sonictj on July 15, 2009, 11:45:36 AM
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I decided to test my new board with my old $50 robot frame in the spirit of SOR. It worked pretty well.
[youtube]h9S3PbvqyYg[/youtube]
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here is the same bot I just modified it with Sharp IR and sonar.
[youtube]pR6I-M-6Sac[/youtube]
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hah, nice!
just a question, how did you plug in your stuff? a shield? jumpers?
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here are some picks of the shield. I used a single sided protoboard. I soldered the board to board headers underneath. I did this by placing the protoboart on a flat surface and then setting the headers in place. This made a big enough gap for me to solder the header on. I then soldered power bus headers on top of the board normally. I essentially made a giant header board with power buses. I also brought out the isp header because I program in avr studio almost exclusively now.
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looks great!!! this project gets better and better every time I look at it!
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Cool.. why not just have a male connector on your board?
Tesla
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Cool.. why not just have a male connector on your board?
Tesla
Do you mean headers/power buses? That would be huge. This board has 86 io pins I would have had to increase the size of the board about an inch in x and y. The routing would have been much more complicated too. My setup allows for more versatility because I can custom make a cheap shield for my application.
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Sorry.. not worded good.. I mean connector headers like on the Axon. Male instead of Female. Is there an easy to solder socket that the mcu can plug into? That might make assembling a little easier for you.
Tesla
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there are schmartz (I think thats what their called) but they are also very large and expensive. It would also be difficult to add a shield with the mcu that high. You would need special connectors. That kind of setup could boost the price $15 easy.
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The main problem here, like others have said Admin included, is that in order to release a product, like this one, you have to put a TON of money into it. Its a huge gamble. From what I've discovered I would have to be able and willing to drop thousands of dollars to even hope for a profit. Manufacturing costs ~$25 per board in quantities of 50, and the parts to buil;d the board are ~$20. Then you add shipping and upfront business expenses and you realize that with 50 boards made you will not even profit if you sell them all. I would have to make a ton of boards to keep costs down, and this would cost more money than I have. So there really isn't much I can do at this point. I wish there was.
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This may be a stupid question.. why do you need a shield? Does the mcu produce RF?
Tesla
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This may be a stupid question.. why do you need a shield? Does the mcu produce RF?
Tesla
you don't know how hard i just laughed! a shield isn't what it sounds like, its like an add on for the board...
like a bluetooth shield would enable to board to use bluetooth...
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ah gotcha.. glad I gave ya a good laugh.
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ah gotcha.. glad I gave ya a good laugh.
lol, thanks... google around for arduino shields to get an idea... most of the time they plug into the board.
like so(http://farm4.static.flickr.com/3235/2825399045_04db0b39b5.jpg)
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nice job intergrating your new board to your $50 chassi ;D
it looks like the castor on the back is getting stuck, not a good thing.It can doudle the stress on your robot and the servos and the batteries. that happened to me and i halfed my battery life ,Some oil fixed tht in a flash. And not to mention the mess that the rubber left on the floor.
but overall nice job ;D :o ;D
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it looks like the castor on the back is getting stuck,
I think that the robot was just front heavy so the caster didn't always follow. At this point though I've gone on to build a brand new chassis. This one is like Admin's Taurus 2 but with three wheels instead of four. I'll probably post pics soon.