| ??? 04/18/07 15:43 Modified: 04/18/07 15:45 Read: times |
#137447 - a common problem Responding to: ???'s previous message |
Andy Neil said:
Richard Erlacher said:
it looks like a "product brief" which gives no hint as to how you're intended to use this product. Yes, that's what I thought. Unfortunately, this does also tend to be the case with such cheap products: I said:
The reason some of these RF modules are so cheap is that they are very, very simple...
There is no such thing as a free lunch - the modules are cheap becuase they leave it up to you to provide the appropriate coding, sync, error-detection, error-correction, etc, etc... http://www.8052.com/forum/read.phtml?id=137311 And they don't provide much help in terms of proper datasheets, support, application notes, etc, etc... :-( If you want modules that will simply plug-in as a direct cable replacement, they will obviously be more expensive And, if you want good, clear documentation and support - you have to pay for that, too! Richard said:
You can't work with the little data that their web-published sheets provide. You need more information than that. Have you got any additional information? There is a contact link on their site - have you tried it? Or your distributor? The mfg doesn't appear to have an "ENGLISH" page. There are links to some other sites that might be more helpful in this thread: http://www.keil.com/forum/docs/thread8256.aspTake a look at: http://instruct1.cit.cornell.edu/courses/e...4/website/ and, of course, your favourite internet search engine...! I'd guess what the O/P would like is a pair of modules, transmitter and receiver, that can understand one another's singaling, and into which he can send "bits" with the assurance that those "bits" will appear at the other end. The mfg indicates a number of reasons why this might not happen, but no indications of how it's intended to be used. RE |
