lukeg01
Posts: 55
Joined: Sat Oct 05, 2013 1:33 pm

SI4432 tranciever Connecting to RPI

Fri Dec 26, 2014 4:41 pm

Hello
How I'm lookin into 433Mhz and by preference 868mhz too on one board and am wondering, would the SI4432 do the trick.
I found a data sheet ( http://www.silabs.com/Support%20Documen ... -31-32.pdf ) yet I don't really understand it as being a beginning tweaker.
Also would this work with existing scripts (by preference https://github.com/ninjablocks/433Utils one cause it can record as well)
So is it true that it can send and receive? And how would I connect it to my RPI (B rev 2)?
Cause it looks like a great module yet I have no Idea how tot connect it.

Luke

Mark_T
Posts: 149
Joined: Sat Dec 27, 2014 10:54 am

Re: SI4432 tranciever Connecting to RPI

Sat Dec 27, 2014 6:08 pm

You need to find a module, not just a chip, since the antenna-matching network is
required and this is all surface-mount tech.

People use the RFM12 and RFM12B quite a lot in the ISM bands because they are
cheap, and there are other chips around that are similar, with SPI interfacing.

Quick search found this: http://wiki.openenergymonitor.org/index ... spberry_Pi

lukeg01
Posts: 55
Joined: Sat Oct 05, 2013 1:33 pm

Re: SI4432 tranciever Connecting to RPI

Sat Dec 27, 2014 6:16 pm

Mark_T wrote:You need to find a module, not just a chip, since the antenna-matching network is
required and this is all surface-mount tech.

People use the RFM12 and RFM12B quite a lot in the ISM bands because they are
cheap, and there are other chips around that are similar, with SPI interfacing.

Quick search found this: http://wiki.openenergymonitor.org/index ... spberry_Pi
Hello,
I just noticed that the datasheet is only for the IC, the item is already on an PCB ( http://www.ebay.com/itm/SI4432-470MHz-1 ... 2ec8852fd1 )
I'm really sorry for the confusion.
But, can this be connected to the RPI directly?

Luke

venkyskar
Posts: 18
Joined: Mon Mar 28, 2016 10:56 am

Re: SI4432 tranciever Connecting to RPI

Thu Jan 09, 2020 11:05 am

The interface program can be found here:
https://github.com/mikozniak/RFM22B/blo ... r/rfm22.py

this can be used for si4432 interfacing.

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