What does a blank payload ack means?

RE: What does a blank payload ack means?

Håkon Alseth — Tue, 14 Apr 2020 06:24:54 GMT

[quote userid="87925" url="~/f/nordic-q-a/59981/what-does-a-blank-payload-ack-means/244116"]If the ack payload is blank, does it means that the messages was successfully recieved also?[/quote]

Yes, if an ACK is successfully received, it means that the former payload was sent successfully.

RE: What does a blank payload ack means?

JulianDM95 — Wed, 08 Apr 2020 15:42:06 GMT

The example is called "Pingpair_ack" you can find it here https://github.com/nRF24/RF24/blob/master/examples/pingpair_ack/pingpair_ack.ino

My final question is: If the ack payload is blank, does it means that the messages was successfully recieved also?

RE: What does a blank payload ack means?

Håkon Alseth — Wed, 08 Apr 2020 07:27:27 GMT

Hi,

My guess is that this is printed when you send, and only get "TX_DS" interrupt back, ie: a blank reply from the receiver (no user data in the ACK). In other scenarios, you get a ACK payload, which sets both TX_DS and RX_DR interrupts.

However; I do not know what example you're running, so I cannot say for sure.

Kind regards,

Håkon