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Topic: Need help identifying a R/F Reciever and transmitter, (Read 974 times) previous topic - next topic

arttu97

Hi,
I recently got a motor control PCB of a GDO (Garage door opener)
It appears to have removable  R/F reciever module, but I have had no luck identifying the reciever's model nor how can I connect it to arduino board.
it has following pins connecting it to main pcb: Antenna, Gnd, Vcc and Data,

KenF

Are there any interesting components on the other side of that board?  The only IC in that picture is a dual op-amp.  Everything else is just passive stuff.

arttu97

Are there any interesting components on the other side of that board?  The only IC in that picture is a dual op-amp.  Everything else is just passive stuff.
No, There is no components on other side only a mesh of copper and antenna i think

KenF

Ah but this is the RECIEVER yes?  In which case that's probably about all that's necessary to convert a modulated RF signal into a logic pulse train.  (see image)


The problem you may have is translating the data out of it, back into bytes. That's assuming it even uses byte.  It may simply use PWM.

I'd suggest using a scope on the "data" line to see what comes out when you press the various buttons on your transmitter.


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