nRF24l01

[zgxiao]

Hello, Greetings, in the nRF24L01 datasheet, it's mentioned that the module can work as a multiceiver using the six parallel data pepes,my question is that if it is possible for a nRF24l01 module(PRX) to communicate with more than six modules(PTX)?Or can a PRX communicate with multiple PTXs using only one data pipe? thanks

[Janek Mann]

Hi zg,

if two or more PTX devices with the same address send a packet at the same time (or with overlapping on-air times), either one or zero packets will be received by the PRX, as the PRX can only receive one packet at a time. If the PRX is set to acknowledge the packet, more than one of the PTXs may interpret the acknowledgement packet as being addressed to them, giving the illusion that their packet was received by the PRX, hence not resulting in a retransmit of this packet from this PTX and a lost packet.

If the PTXs are using different addresses, it is still the case that one or zero packets will be received, however the acknowledgement would only be received by the PTX which sent the actually received packet, so the other PTXs can retransmit their packet.