What is the maximum number of Nrf24L01 devices i can connect to 1 ?

[testarasque]

Hi,

I 'll need to comunicate whith many Nrf24L01 ( more than 20) and 1 nrf on a raspberry pi. Is that it is possible ?

thanks

Testa.

[Hung Bui]

Hi,

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.

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.

[testarasque]

Thanks, good news for me ! Thanks also for the "CSMA/CD" tip. So I'll start working on it.