The datasheet: http://www.parallax.com/dl/docs/prod/audiovis/RFIDReader1.pdf says the read range is up to 4", the data rate is 2400 baud, one tag transmits 12...
You must have misunderstood my previous message. You don't want to both apply a 17% duty cycle PWM and reduce the supply voltage to 1.5 Volts. Do one or the...
... Yes, but the effective read range is a diffrent story. If the reader is placed under the metal track or if the tag is on a metal object the read range...
We would like to remind you of this upcoming event. Monday Night Chat Date: Monday, August 1, 2005 Time: 7:00PM - 9:00PM PDT (GMT-07:00) Monday Night Chat...
SeattleRobotics@yahoo...
Aug 1, 2005 2:02 pm
24920
What is the maximum effective distance I could get out of an IR system, assuming I keep the unit indoors? Would it be possible to get 6feet or so out of it? ...
i'd suggest buying some books on basic electronics, and starting a course with a tafe, uni or other educational institution. your "if the magic smoke stays in,...
The train cars are generally between 10 and 30 inches long. But yeah, the time where the tag would be roughly overhead of the reader would be pretty small....
Hhi Eljin, ... The Sharp GP2Y0A02YK reports to have 250cm of range. http://www.junun.org/MarkIII/Info.jsp?item=17 The resolution at the outer limits isn't...
... Cool project, Cathy. Just a point of clarification- By weakest station, are you not really hoping to find a completely unused frequency? I understand...
Thanx, Looks I could get a meter and a half with that sensor, so I'm looking at much less with the stuff I have laying around. I was going to pull stuff out of...
Correct, what I want is the frequency with the least signal. It's pretty much impossible to find a frequency with nothing in this area, but I should have said...
One question. Will this device from Parallax allow people to locate and disable RFID tags that are on goods we've purchased and taken home? -- "From Each...
We would like to remind you of this upcoming event. Monday Night Chat Date: Monday, August 1, 2005 Time: 7:00PM - 9:00PM PDT (GMT-07:00) Monday Night Chat...
SeattleRobotics@yahoo...
Aug 2, 2005 1:02 am
24931
Thanks to Triffid Hunter and Douglas Warren Bell for your sujestions. I was obviously being facetious with the "fire rule" reference. Yes, I have roasted some...
... No, completly diffrent type of tags / readers. -- Jeff Birt Electronics Engineer Integrated Systems Facility University of Missouri - Rolla 573.341.6058...
Greetings. I am doing a simple little project involving a little stuffed animal that pops up out of a stump holding a greeting sign. I want the system...
Typically this would be done with a passive infrared detector. Chinging light levels would be subject to all kinds of motion. Is this outdoor or indoor? With...
At this day and age, it may be well possible that the discreet components you would use (555 timer, comparator, capacitors, resistors) would me more expensive...
Jim McBride wrote: I was going to use a PIR motion detector to run the thing. But I now find out that I won't have any AC power available to me. Tom Capon...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the SeattleRobotics group. File :...
SeattleRobotics@yahoo...
Aug 2, 2005 11:09 pm
24940
All, Thanks for the ideas. I do prefer a PIR sensor however I am trying however to do this with "in-house" components. That is a great sensor I may use in the...
every national geographic shop i've been to in australia has several frogs near the door that all start croaking whenever someone walks past. perhaps obtain...
I am absolutely very new to this robotics field. In fact, I'm just taking the subject of Robotics and Automation only this semester and now asked to settle a...
white isn't (technically) a colour. that's your first problem. white light is characterised by containing a fairly even spread of all colours. your best bet is...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
