I think that I will just dump the idea of using this receiver I did find out that it is a 40kHz IR receiver so I am going to buy one and save some time. I will...
... I realize I said I was going to copy the Boe-Bot but know I looked into it further and I can't because it said it is only for Sony remotes. You said it was...
http://scv.bu.edu/GC/shammi/ir/ http://www.palowireless.com/irda/remotes.asp http://www.camerahacker.com/universal_remote/index.shtml Many others are out...
Here is what I figured out in my quest to operate my audio video system,... the signals are 38.5 KHz this is a fact of the infra-red 3 - pin reciever...
I was able to solve all of my problems. Go to the link for info: http://forums.parallax.com/forums/default.aspx?f=5&m=211945 Thanks for all of your help, Josh ...
... digital signals the other way? Yes, I am aware of two methods. - The most common is used on cable TV distribution systems, by me and perhaps by you at this...
It is hard to do with off the shelf building blocks. Basically you have to shift the frequency spectrum of one or the other so they don't overlap. In theory...
You could look at Manchester encoding your digital data at a high enough bitrate to put it above the video frequency band. Then just sort by frequency. ...
I've never done video+digital on one coax cable, so I'm not an expert. But that is possible. For example, you can take existing 433MHz RF transmitter and...
I'm going to be using an electronic compass. is there any way of sheilding the motors. would a very thin layer of soft iron have any effect? or maybe coils...
The only magnetic shielding I have seen used successfully is mu metal (pronounced mew metal). The best shielding is distance. Also make sure the compass and...
... Seconded. Since magnetic flux density falls according to the inverse of the square of distance, it doesn't take a large distance to make a large ...
Turning the motor current off briefly for a magnetic compass measurement will make the compass measurement more accurate, especially if the motor doesn't have...
I developed an interest in digital calipers and the sensor used in them after I noticed some wrong answers showing up on yahoo answers. wikipedia did not have...
... There a lot of info on remotes here: http://www.sbprojects.com/knowledge/ir/ir.htm I have done some work with a RCA remote and recorded the codes for all ...
Hello All! I need to build a device like this: there is a chair whith wooden seat (no upholstery). When somebody sit down on this chair electronic devise must...
Can you remove the seat altogether? If you can, then you can put 4 little switches between the legs of the chair and the seat. Capacitive sensors is another...
... 4 ... A chair is not buyed yet so i don't know a construction. In any case it's quiet difficul for me to install swithes under seat. It is need to install...
A thermal sensor would be easy, but slow. You could use a strain gauge glued to the bottom of the seat to detect distortion due to weight. Or how about the...
... is broken it would trigger the sound chip. ... Using IR sensor not so good idea because IR LED will quickly dicharge battery. Solution must be battery...
I'm begining to build an ROV and I need help deciding/aquiring which sensors I will need to add on to it. I am also a poor college so cheaper is better. The...
For ultrasonic transducers look at depth sounder transducers at your local fishing tackle store. The one Nick suggested looks just like the ones meant to...
I'm doing some research on data reconciliation. I'm working on robust state estimation based on sensor measurements. My problem, ironically, is that I can't...
It is possible to make a piezoelectric pressure sensor from a axial monolithic ceramic capacitor. One could make four of these and glue one under each of the...
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