lost badge for controlling robotic arm

willy1067

Parallax used to sell a sx-electronic badge for about $7 to $9.··

do they still sell it or they stop producing them?

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Fernando Gomez


Never compare yourself with anyone else, there will always be someone bigger·or·smaller·than you.

Post Edited (willy1067) : 11/30/2007 12:05:22 AM GMT

CCraig

Yeah, you're right. I looked all over and couldn't find it either.

You'll have to call them. They said it was limited, but I would think they still have some left.

HTH, Chris

T&E Engineer

I think you might be refering to the original badge called the RoboOlympic badge. Recently they were redesigned somewhat and labeled on the Parallax site as RoboGames badge of which I bought one. This is the only reference to a badge that I know of. Since their new site went up, the old link to their RoboGames badge no longer works.

DigitalDj

Does the code for the Robo Olypics Bagde use a scanning methode in the code for the matrix?

Thanks,

Kevin



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willy1067

I emailed Parallax to find out if they still have this product for sale, if not I will have to make my own.

I am trying to control 40 LED's (actually motors), so I might try charlieMultiplexing with either the BS2, the SX, few 74HC595 or the MAX7219 for
my current project.

·http://forums.parallax.com/showthread.php?p=637017

·Almost 17 months with this project, and just now starting with the electronics, any input will be appreciated.

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Fernando Gomez


Never compare yourself with anyone else, there will always be someone bigger·or·smaller·than you.

Post Edited (willy1067) : 11/29/2007 5:34:41 AM GMT

willy1067

The product is discontinued, but thanks to Jim Carey, I will be able to get some for experimentation.

Thanks Jim... You guys are amazing

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Fernando Gomez


Never compare yourself with anyone else, there will always be someone bigger·or·smaller·than you.

Post Edited (willy1067) : 11/29/2007 6:48:55 AM GMT

T&E Engineer

I built the RoboGames medal and expanded it to from 15 columns to 40 columns with·a variation in the design. However, since I am an SX/B beta tester I have the latest unreleased SX/B which one new feature allows arrays on an SX-28 to be larger than 16. So I utilized this in the design. Check out the link and especially the YouTube video.

http://forums.parallax.com/showthread.php?p=670731

I believe an SX-28 has larger arrays (more than 16) so it·should be·possible to do this on an SX-48 protoboard too - until SX/B v2.0 is released in the future (I don't know when).

·

willy1067

T&E I am still in the mechanical part of my robotic arm but very soon will start the circuitry, programing of it. I posted a picture above to see if anyone can help.

The arm has 40 actuators, and I need to control each one separate. my idea was to take each LED signal; amplifying it, so each signal controlled one actuator.· I will make some schematics later to explain.

any ideas?

Post Edited (willy1067) : 11/30/2007 12:10:20 AM GMT

willy1067

After experiment with the badge, I decided to go back with my original idea (theoredical 256 i-o board)

http://forums.parallax.com/forums/?f=5&m=181646&g=181646#m181646

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Fernando Gomez


Never compare yourself with anyone else, there will always be someone bigger·or·smaller·than you.