Hi Pat, Nifty design, should prove quite workable for experimentation. Those little Tamiya gearboxes are quite noisy, both audibly and electrically. They also...
Going to model the sensors today and add them to the design. Should help me finalize the front deck size and figure out the mounting scheme. I figure I'll put...
I'm trying to figure out just how close together the sensors need to be for line following. What I've typically seen is electricians tape which is about what,...
Hi, ... Basic tracks often using electrical tape, which I think is 3/4" wide. The Seattle Robotics Club has a line maze competition and it uses 1/4" lines. ......
... Yep that will work pretty well. The other thing to consider is some sort of shield to block ambient light around the sensors; as the robot moves around...
... According to the datasheet of your sensors you get the best sensitivity around 0.2" distance, so your setup should be great for that. As Bob mentioned a...
I saw that on the datasheet too. Pretty small response area. I rigged one up to a Mega chip and experimented. The height is critical and the focus area is much...
... What you're describing is an absolute measurement, which is really influenced by ambient light. Another approach is to take a measurement with the LED...
Reminder from: vancouverrobotics Yahoo! Group http://groups.yahoo.com/group/vancouverrobotics/cal Vancouver Robotics Club Meeting Sunday November 9, 2008 10:00...
vancouverrobotics@yah...
Nov 3, 2008 5:55 pm
2890
Thats the nice thing - the method used is all in software so I can just experiment with various methods. I just replaced my first robot design pick with a more...
You may consider using a optical navigation sensor rather than a photo-reflective sensor. -- Navigation sensors offer a feature called Surface Quality aka ...
Adrian Boston
adrian.boston@...
Nov 6, 2008 4:01 am
2892
Hi Adrian, would you have a part number? Do you mean those sensors they use in optical mice? I looked at some of those but haven't found a match for line...
Reminder from: vancouverrobotics Yahoo! Group http://groups.yahoo.com/group/vancouverrobotics/cal Vancouver Robotics Club Meeting Sunday November 9, 2008 10:00...
vancouverrobotics@yah...
Nov 7, 2008 5:56 pm
2894
Goto Digikey, search "avago adn" ADNS is a Sensor ADNB.. is a lens ADNK is a complete kit with sensor, lens and mount You may which to narrow the search using...
Adrian Boston
adrian.boston@...
Nov 8, 2008 1:01 am
2895
Not sure how old it is, but I saw this on an internal mailing list today... http://www.pages.drexel.edu/~twd25/webcam_laser_ranger.html No doubt you could do...
I was intrigued by Markus' demo today, so I did some digging, and thought I'd post some links. Here's the datasheet for the Analog Devices chip he was...
Thanks, I'm glad you enjoyed it. The other chips I was mentioning are the AD9833 (although I said 30, I meant the '33), and the AD9913 (really cool !! beware...
Warning: This post wanders around a bit. I'm developing my thoughts as I write! I've been giving a fair bit of thought to the idea of using a row of sensors...
you can get a piece of diffraction glass for making lines from a laser level, which seem to turn up at teh liquidators more and more these days did I ever post...
dan williams
dan_williams@...
Nov 11, 2008 5:47 pm
2900
[ Corry Tupper, if you read this please phone me, I dont have your number, I want to talk to you about new toys. ] That robot I made, so long ago now, "smoking...
dan williams
dan_williams@...
Nov 11, 2008 6:11 pm
2901
Obviously you want to do right angles which complicates things a bit, not obviously, but in reality. I had a similar train of thought and then it all turned to...
... Some of those robots were using vision. As long as there is enough contrast, line width won't matter with that type of system. Here is a different example...
I can't always borrow the work laptop for meetings so I figured I'd buy my own laptop. I need one for use with the datalogging gizmos I make anyway so the two...
How's the build quality on the Aspire One? I normally avoid Acer like the plague, but from the brief look at my friend's unit, it actually looked pretty...
... line, and the line will never be perfectly in a right angle. What that means is that the last pattern you could measure would be 00100 and after that...
... since ... At first I was having some problems with the touchpad and, as every laptop I've used with a touchpad has its problems, this was no suprise....
... That's pretty impressive, although I'd definitely get a larger battery for it. Do you know how well Ubuntu/any other distros work natively on it? (I run...
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