RE: Can not retrieve pipe number

ovrebekk — Mon, 07 Sep 2015 13:41:18 GMT

In the nRF24L01+ there is really no concept of pipes on the PTX side, you only operate with pipes in the PRX.

The reason for this is that there is only one TX address, and you have to change this address every time the PTX wants to address another pipe or device. Not only that, but the PTX uses RX pipe 0 to receive the ACK packet, so you also have to set the RX pipe 0 address accordingly (to the same as the TX address).

You don't need to pulse CE when uploading ACK payloads. Just upload a packet while CE is high, and the ACK payload will be sent on the next received packet from the PTX.

Best regards Torbjørn