nRF24lu1 and ”Not recommended for new designs”

[wolffe]

As stated on the product page and repeated in my title, the nRF24lu1 and the plus model aren't recommend for new desifde. Is there an nRF52 series replacement?

I'm working on a project that uses an nRF24lu1 as a USB dongle. Is there a direct nRF52 replacement for this? Will something in the nRF52 family run the MCU binary from the nRF24lu1? Or am I going to have to disassemble the nRF24lu1firmware and rewrite for the replacement?

As I am new to Nordic's family of products, any guidance here is welcome! I must say that so far I am very impressed with what I am seeing... but dealing with legacy stuff is always a bit of a pain.

Thanks!

[awneil]

https://devzone.nordicsemi.com/f/nordic-q-a/49157/nrf24l01-not-recommended-for-new-projects/195512#195512

You would need nRF52840 for built-in USB.

wolffe said:

Will something in the nRF52 family run the MCU binary from the nRF24lu1?

No. It is an entirely different CPU (ARM Cortex-M4).

wolffe said:

am I going to have to disassemble

Don't you have the source code, then?

If not, it might be easier to start again from scratch ...

[wolffe]

Thanks!

Yeah, no source. I inherited this, and I (at least as of now) have to keep things working with the current data logger. There's currently nothing in our source control related to this. Hope I can pull up something from somewhere! If I had my druthers, I'd *definitely* nuke this and start from scratch.

Is the nRF52840 the recommended replacement for production units? Digging through these public tickets, I've run across one from a while back that implied the nRF52840 was for development purposes.

Thanks again!

[awneil]

wolffe said:

Is the nRF52840 the recommended replacement

Depends on what you want to do with it.

As already noted, it is the only one with USB.

wolffe said:

one from a while back that implied the nRF52840 was for development purposes

Really?

Maybe that was from the days before it was released for "production" ?

It is certainly in production use now!

[wolffe]

Thank you so much!

What's even better is that I have a handful of these already.

Time to start digging in :)