nRF24L01+ LNA + PA modules

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I am looking for any user experience / feedback about modules based on the nRF24L01+ IC by nordic semi. For example modules like the one listed below.

http://www.elecfreaks.com/wiki/i...

there are plenty of Chinese manufacturers making these modules.

I need to know are they reliable and is the specified range anywhere close to what we can hope to get on field. I have tested the modules, but I am planning these modules for a critical project and needed as much feedback about them as I can get.

Last Edited: Fri. Oct 16, 2015 - 01:43 PM
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Forgot to mention my data is going to be from a UART source at 15200 baud, given that these are SPI modules I would be building some UART to SPI bridge to go with this.

Last Edited: Fri. Sep 19, 2014 - 05:26 PM
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First..

Quote:
is the specified range anywhere close to what we can hope to get on field

and then..
Quote:
I have tested the modules

What did you get when testing the range?

More on these modules, and some talk about range, in these threads:
https://www.avrfreaks.net/index.p...
https://www.avrfreaks.net/index.p...

I'm fairly sure there have been more threads touching on these modules. A search here should reveal them. (It's not like the search term "nRF24L01" will produce mostly "false positives"... :wink:)

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Thanks for the links...have posted the question there...

in my testing of two pairs of modules in all combinations i got ranges varying from about 400mts to more than a km on a open beach (LOS), that is vastly in consistent...and hence was looking for others experiences

Last Edited: Fri. Sep 19, 2014 - 05:26 PM
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You can arrange the software to make multiple Shockburst attempts. i.e. you can simply repeat until the foreign obstruction has moved. It depends on how important your throughput is.

After all, people use mobile phones quite happily. Even though the reception is very poor where I live.

I have only used the printed antenna between different rooms in my house.

In practice, you don't often want to send data across an open beach.

Likewise, I only want to talk to the next room.

David.

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david.prentice wrote:
You can arrange the software to make multiple Shockburst attempts. i.e. you can simply repeat until the foreign obstruction has moved. It depends on how important your throughput is. After all, people use mobile phones quite happily. Even though the reception is very poor where I live. I have only used the printed antenna between different rooms in my house. In practice, you don't often want to send data across an open beach. Likewise, I only want to talk to the next room. David.
mentioned the beach to establish the LOS testing... ofcourse as u say one dont often send data across open beach. the throughput is time critical...as in if a complete frame is missing for more than one second the application would have failed its purpose...anyways will keep looking for other options.

Last Edited: Fri. Sep 19, 2014 - 05:26 PM
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In which case, you probably need a wired solution.

In real life, you will always get some temporary physical obstructions. If you can't ensure LOS, you need a short range.

David.