https://devzone.nordicsemi.com/f/nordic-q-a/20021/what-is-the-maximum-number-of-nrf24l01-devices-i-can-connect-to-1Hi, I &#39;ll need to comunicate whith many Nrf24L01 ( more than 20) and 1 nrf on a raspberry pi. Is that it is possible ? thanks Testa.en-USTelligent Community 13Tue, 28 Feb 2017 13:02:41 GMThttps://devzone.nordicsemi.com/thread/77941?ContentTypeID=1Tue, 28 Feb 2017 13:02:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8a732352-0d48-45c9-9e6f-5125f59c15aatestarasque<p>Thanks, good news for me ! Thanks also for the &quot;CSMA/CD&quot; tip. So I&#39;ll start working on it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77940?ContentTypeID=1Tue, 28 Feb 2017 11:47:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:37743902-21dc-460d-8f9f-94da2bc35bb4Hung Bui<p>Hi,</p> <p>You can have as many as you want, just setting them up so that they send to same PRX address. You would need to use an addition byte in the payload to identify them.</p> <p>The challenging part is to avoid interference when 2 or more PTX transmitting at the same time. You can introduce a random delay when there is no ACK from the PRX before the PTX re-transmitting, similar to CSMA/CD.</p><div style="clear:both;"></div>