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Use your Arduino to transmit (and receive) data reliably with this easy-to-use module.
The nRF24L01 module achieves this beautifully - and with the excellent RF24 library from TMRh20 we can do just about anything you might think of.
However, in this absolute beginners' guide, we just scratch the surface but still managed to produce a useful transmit and receive sketch (originally taken from the above library but simplified even further).
The nRF24L01+ boards (but available in many places):
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The breakout board that prevents power-related issues:
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The library I use is very mature, s/he has several others too. See his/her homepage here, choose the RF24 library as I showed in the video.
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Note that there are several good nRF24L01 libraries available out there. If you use another one bear in mind that the pin connections will be different. I chose the one above as it seemed to give us Arduinites a decent interface to the nRF24L01 module without too much mucking around.
My sketches (one for receive, one for transmit) even though both do actually transmit anyway (remember that each module will automatically acknowledge receipt of data unless you specifically switch off that capability - why would you do this?).
IMPORTANT NOTE: thanks to the Eagle Eyes of Arduinite viewer whitefields5595 please remember that pin 10, although not connected to the nRF24L01+ in this demo must NOT be used as a general purpose IO pin - it remains the standard CS pin of the SPI bus - and if that doesn't mean much just remember to leave pin 10 on your Uno or Nano unconnected whilst running this sketch!
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DOWNLOAD HERE
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[ Ссылка ] --- click the Download button and choose the zip file, unzip and place each sketch in its own folder (of the same name as the sketch) in your usual Arduino sketches folder.
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How can I remember this? Memory tip: "See" Ralph Bacon, geddit?
