Hi all, This will be the first time I can make a meeting. If anyone is leaving or going through the University District and can offer me a ride please send me...
36455
tony tan
gloom_me
Jul 2, 2008 8:10 am
Hi I am exploring the PLC programming and need a Simulation program for learning anyone know where to download ones as i check the webby there is no software...
36456
tharanath tara
tara_tharanath
Jul 2, 2008 2:29 pm
http://www.dickinsonautocon.com.au/ibh.html ... From: tony tan <gloom_me@...> To: SeattleRobotics@yahoogroups.com Sent: Wednesday, July 2, 2008 1:10:38...
36457
techiguy
Jul 2, 2008 2:42 pm
You wonder how a gear box worked, or how a level sensor worked, check this website http://mechanicalebook.com/videos.htm it has several interesting videos...
36458
eshezo ayomi
robo_seeker
Jul 3, 2008 12:55 pm
hi all i am trying to create a robot club which will teach robots courses , help beginner robotics hobbies , projects and so on ..... but i want a formal...
36459
Randy M. Dumse
rmdumse
Jul 3, 2008 3:01 pm
eshezo ayomi said: Thursday, July 03, 2008 7:56 AM ... Where are you located? Could you affiliate with a local university? Certainly, if that were possible, it...
36460
ray xu
rayxunewhall
Jul 4, 2008 1:29 am
Hi, This message is related to "100mHz counter". I want to know if building a laser ranging module to measure distance is plausible. Heres how it works: ...
36461
Monty Reed
lictonsprings
Jul 4, 2008 7:01 am
We have some extra resistors we will probably never use. On behalf of www.theyshallwalk.org I would like to offer them to any Seattle Robotics Society members...
36462
Tony Brenke
trbrenke
Jul 4, 2008 10:23 am
LOL, this all looks ok in theory except for the oopic section. the oopic internal runs, (at best), 1/4 of your crystal speed. it may not be fast enough for...
36463
Eli Kolberg
eliko0
Jul 4, 2008 4:34 pm
Nice implementation of fueling robot. Little slow though. http://www.tankpitstop.com/index.php?pid=6 [Non-text portions of this message have been removed]...
36464
ray xu
rayxunewhall
Jul 4, 2008 4:36 pm
Also, my dad and I discussed this a little, and we also plan to use a um-FPU ver 3.1 as the math processor. So, the oopic will only handle the display part....
36465
Jack
raefsel
Jul 4, 2008 5:02 pm
Yep. It is possible to do laser range finding this way but... I have looked into this before and had trouble locating components that were fast enough. I'm...
36466
km6vv
Jul 4, 2008 6:00 pm
The sonar ranger might give you some insight. You Might study an IR ranger such as the GP2D12 sensor with a Range of 10 to 80cm. Study how it works. Simply...
36467
ray xu
rayxunewhall
Jul 4, 2008 6:11 pm
Well, I've located a 900mHz 8-bit counter (I can chain this to form 32 bits). My dad and I still have some concerns on if the oopic can handle the speed....
36468
Patrick Haas
ph4zer
Jul 4, 2008 7:22 pm
I think that the entire measurement process will have to be done in hardware, you don't even need a microprocessor at all. The µC is only good to make the...
36469
Robert F. Scheer
rfshiker
Jul 4, 2008 9:35 pm
That's a real robot in my book. Supposedly going into operation later this year in Holland. What's the point of robots like this though? Here in Oregon we...
36470
Tony Brenke
trbrenke
Jul 4, 2008 9:38 pm
avr. 16Mhz (internal 16Mhz also). chip cost is higher but programmer cost $30. ... From: ray xu To: SeattleRobotics@yahoogroups.com Sent: Friday, July 04, 2008...
36471
Randy M. Dumse
rmdumse
Jul 4, 2008 10:25 pm
Dateline 4th July, 2312 Breakthrough Archeological Find Today our archeologists made an amazing discovery. Tracing through the layers, back to the start of the...
36472
james mock
jgmock@...
Jul 4, 2008 10:58 pm
Monty, Send me a list or give it to me mon. PM when I see you. Happy Independence day Veteran, you are loved and appreciated ! James To:...
36473
fred miller
jamericanfreddy
Jul 5, 2008 12:31 am
i am also looking into building a laser range finder,i have a few lasers at home your idea looks like it should work,since i looking into using about the ...
36474
ray xu
rayxunewhall
Jul 5, 2008 2:06 am
That's pretty cool Fred.maybe we can team up or something (a thought). Well I was discussing this issue in DPRG (www.dprg.org <http://www.dprg.org/> ) and...
36475
ray xu
rayxunewhall
Jul 5, 2008 2:18 am
I’m going to use a 650nm 5mW laser diode, and a OPT101 as the detector. I already experimented with my laser pen (650nm, 5mW, diode) in a very dark room to...
36476
john g.
tlclotus1
Jul 5, 2008 3:20 am
I may have missed something along the way but counting at 100 MHz gives a time tick every 10 Nanoseconds. This would give a range resolution of 10 feet per...
36477
Patrick Haas
ph4zer
Jul 5, 2008 9:51 am
... Be very careful with CPU speeds. A 1GHz CPU is nothing like 1 GHz hardware logic. Remember that.. - The "1 GHz" is the core clock of the CPU - Each...
36478
Tony Brenke
trbrenke
Jul 5, 2008 10:57 am
if you need true 250-500Mhz counter for your range finder, then it is hard to beat a CPLD or FPGA. as stated below, a PC or even an pico-itx is horrible at...
36479
Phil Malone
ourcoolhouse
Jul 5, 2008 12:21 pm
Hi I did refer to the OPT101 datasheet.... Apparently the OPT101 has a bandwidth of 14 KHz, so it's nowhere near fast enough for nS timing . It has a rise...
36480
don clay
dwc309
Jul 5, 2008 1:53 pm
It might not be as slow as you think. By the time you get out of the car & walk around the car, the robot might already be fueling. Same on the end game...
36481
don clay
dwc309
Jul 5, 2008 1:58 pm
I haven't looked (I'll leave that to you) but I wonder if the input capture on a microchip, atmega, or either an ARM or Motorola DSP would be able to run at...
36482
ray xu
rayxunewhall
Jul 5, 2008 4:41 pm
Again, it doesn’t matter how many times it triggers in a second, I’m just worried about the counter and it’s resolution. ___________________ Ray Xu ...
36483
Doug Leppard
DougLeppard
Jul 5, 2008 11:34 pm
Trying to clean out hobby and robot room. I-cybie robotic dog. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200236805054 Battery charges, and it does...
