Hi All,
here is my problem, trying and trying to solve it, but still have no clue during all my investigation over internet and arduino.
I have two Arduino Mega 2560 R3, and RF 433MHz transmitter and receiver. I tested the transmission and reception between them with success, but with a question. Why both of them, transmitter and receiver should have the same bit rate (e.g. 4000) set to have the communication between them? Any difference between that bit rate interrupt the communication (this is happening using virtualwire library).
My goal is to get the data transmitted wireless (using 433MHz) by my programmer transmitter device named "euroster 3000tx" to my receiver device which controls the heating central (using gas). I can't get this radio data with all my tries, I need to monitor and to make optimization for number of starting at different temperatures, many other monitor things.
Could you please help me to reach my goal to get this radio 433MHz data to my arduino?
Thank you,
Best regards,
Virtualwire is a protocol specifically designed to allow Arduinos to communicate with each other.
It wont work for anything else.
You need to find out a lot more about the euroster 3000tx device,and how it encodes its data.
What I know about euroster 3000tx is that, it communicates on 433MHz codded to not have any interference with another same device close to it.
I agree with you that it is codded. But seeing this at transmission level we knows that codded or not codded there is digital data transmitted ( e.g."1001101001110") through radio interface. What should I do to have this radio data into my arduino? What library should I use if virtualwire is not dedicated for this, or how to modify the virtualwire to get this data?
I know that in the air the radio data exist, and I have the sensor (receiver) for this, how could I progres to see this data?
thank you,
You could try the RC switch library.
This is primarily designed for remote controlled power switches which use a variant of the PT2262 / PT2272
encoder / decoder chips.
If this works then its fairly easy to figure out whats being sent.
If it doesnt , then the task becomes extremely difficult, unless you can provide much more information about the device you are trying to decode.
To decode an unknown 433 MHz transmission protocol, most people start with a simple receiver and a laptop running Audacity, as described here.
jremington:
To decode an unknown 433 MHz transmission protocol, most people start with a simple receiver and a laptop running Audacity, as described here.
Hey, your message is really helpful theoretically. I'll do a try and I promise to come back with results. If I get the signal and I could reproduce even it is coded or not, it will be very helpful. The link is great, thank you very much.