nRF24l01 receiver changes values

RE: nRF24l01 receiver changes values

Håkon Alseth — Fri, 07 May 2021 06:35:49 GMT

I'm glad to hear that you found the source of the issue!

Kind regards,

Håkon

RE: nRF24l01 receiver changes values

basilalattar — Wed, 05 May 2021 21:45:53 GMT

It turned out to be a noise problem, I twisted the VCC and ground wires in pairs and the MOSI/MISO as well.

I have another question that is irrelevant to this problem, it concerns the rf24 and rf24network libraries if you are familiar with them, is the dynamic payload enabled by default in the libraries or should I enable it in the code.

Thank you again Håkon for the help.

RE: nRF24l01 receiver changes values

Håkon Alseth — Wed, 05 May 2021 07:33:38 GMT

Hi,

If you look at the datasheet (https://infocenter.nordicsemi.com/pdf/nRF24L01P_PS_v1.0.pdf?cp=11_4_0_0), chapter 9, you can see the register map.

Its important that you try to setup the nRF's to use 2 byte CRC for best possible data integrity on-air.

That being said; if every other transmission is corrupted, the issue is usually elsewhere. Try changing the RF address (remember: config must match on both sides!) and RF frequency.

Kind regards,

Håkon

RE: nRF24l01 receiver changes values

basilalattar — Wed, 05 May 2021 07:19:47 GMT

The data gets corrupted at the receiver side every other transmission.

I guess I am not because I am not familiar with what a CRC is, can you please elaborate more on that.

Thank you for your reply.

RE: nRF24l01 receiver changes values

Håkon Alseth — Tue, 04 May 2021 11:11:36 GMT

Hi,

At what point does the data get corrupted?

Is it on the PTX side, PRX side, or on the respective host controllers?

Do you use 16 bit CRC?

Kind regards,

Håkon