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RF data transfer questions.
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hagster:
Does 50m refer to miles or meters?

What do you mean by cheap? In what volume? Using pre certified modules save engineering effort. Using lowest cost OOK transmitters wont give the biggest range for input power.
Dubbie:
50 to 100 meters is my target.

There will be one transmitter where the cost doesn’t matter, and a bunch of receivers - maybe 20 to 50 - per system.

The receivers need to be so low cost so the BOM for that many doesn’t blow out my target pricing for the whole system.

I will probably use a pre certified module for the transmitter for obvious reasons. And I figure my receivers don’t need certification as they are RX only.
TK:
RFM69HCW is a simple and powerful RF transceiver that can be used with an Arduino type board.  There is a library that reduces the learning curve significantly
Dubbie:

--- Quote from: TK on June 20, 2019, 02:45:13 am ---RFM69HCW is a simple and powerful RF transceiver that can be used with an Arduino type board.  There is a library that reduces the learning curve significantly

--- End quote ---

I have looked at this one. unfortunately, it blows my budget somewhat. Also, I don't need TX, only RX.
Dubbie:
As a follow up to this. I ended up going with a Hope-rf part. They are great budget-wise at $1 each in small quantities. They also have an onboard decoder. I just need to read out the fifo via SPI.

Thanks to everyone who chipped in ideas.
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