nRF24LE1 ACK protocol with PID identity

[Heikki Palomäki]

Have anybody a solution for my problem ? nRF24LE1 is first in low power state (PWRDWN is 3 or 4) and wakes to send a message. Mostly the message has the same PID identity i think because powerdown clears the memory. So the reiceiver sees the same PID as in the previous message and discards it. Anyway the message is new but receiver sees it to be the same. I don't find any way to skip PID checking. It seems also, that if I change the message content, the receiver looks only PID and discards the message anyway. With oscilloscope i can see, that messages are transmitted and receiver sends ACK message.

[Heikki Palomäki]

I found only one solution: i must change the message content for example using random generator. So the receiver sees every time a new message.

[Bastiaan]

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[Guest]

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[Asbjørn]

Yes, for every time you power the chip down, the PID will be reset too. So you would have to add a counter or random number to the payload to make them different for each transmission. This is normally just an issue during initial testing though as you would have different payloads in normal operation of application.