RF learning remote question

Attila Kovacs

Dear All,

I am a newbee on BS2 programing.
I want to develop a learning 433.92MHz remote controller to integrate some different fobs (same freq. but different protocols) into one .


Can anybody help me with some sample project or experience on logging and retrieving high-frequency serial data flows.

Thx for any kind of help.

Attila

allanlane5

You might look at some of the IR-Remote projects -- they do similar things with protocols, I believe. I've never seen the protocol description for 433.92 Mhz remotes myself...

Beau Schwabe

Attila,

Years ago I saw something in a Nuts and Volts column on how to do this with a PIC16F84. I seem to remember that they
used a transceiver module made by company "X" that conditioned the signal to a point that it could send or receive a
standard RS232 signal thus I would think a BS2 could handle it just fine. I will see if I can locate the article this weekend.


Parallax,

I thought that you had a 433MHz module, but I could not find it on your rf module page

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Beau Schwabe - Mask Designer III

National Semiconductor Corporation
Latest Company News
(Communication Interface Division)
500 Pinnacle Court, Suite 525
Mail Stop GA1
Norcross,GA 30071

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Attila Kovacs

Beau,

Thanks for your help.·I've studied some often used decoders in RF remote contollers. There are big differences in protocols.

That is the reason, I try to sample (and store) signal flow from RF modul (Telecontrolli) without any decoding.

Retriving stored data flow through RF transmitter can work as an "encoder"

Questions:
- What is the best way to catch and store·pulses in width of 30-70us?
- How can be kept them in correct timing after retrieving (time difference between read and write EEPROM)?

Any suggestions or sample projects are welcome.

Thanks for all.
Have a nice day,

A.