migration from nRF24LE, to nRF54L15

RE: migration from nRF24LE, to nRF54L15

alikob — Tue, 25 Nov 2025 00:20:25 GMT

Oh wow, that’s very generous of you, and I will definitely accept your offer to help me. I’m a bit rusty with the forum—I used to post a few years ago on different subjects—so I’ll go ahead and open a private session to share the details of my project. I originally built it about four years ago, and I’m sure there’s room for improvement, plus recently I’ve started seeing some hiccups in the system. I’ll include the code and a simple diagram in the private session.

My plan is to replace the master transmitter, which is currently an nRF24LE1 board with a small antenna, with a board I found here:
https://www.seeedstudio.com/XIAO-nRF54L15-Sense-p-6494.html

I’m thinking of trying both the nRF52840 and the nRF54L15 to see which one performs better in terms of range and responsiveness.

Anyway, thanks so much—I’ll let you know as soon as I post it in the private session.

RE: migration from nRF24LE, to nRF54L15

Daniel Veilleux — Tue, 25 Nov 2025 00:06:23 GMT

I bet I can help you getting it to work. Feel free to open a private ticket if you want to discuss the details of your existing network. And keep in mind that your updated transmitter could open up new use cases like having it act as a bridge between Bluetooth Low Energy and proprietary.

RE: migration from nRF24LE, to nRF54L15

alikob — Mon, 24 Nov 2025 22:23:17 GMT

Hello Daniel,
That was an excellent explanation regarding ESB, and the fact that all those features were built into hardware and are now software-based makes it very flexible. In my specific case, I was using the nRF24LE1 to control a group of motorized window shades mounted on a high ceiling. I was hoping to upgrade only the transmitter to the nRF54L15 (for more range and power) while keeping all 10 receivers as nRF24LE1 devices. It looks like there may be some compatibility issues, so I guess I will have to test and find out.

Thanks again.

RE: migration from nRF24LE, to nRF54L15

Daniel Veilleux — Mon, 24 Nov 2025 22:02:54 GMT

Take a look at the "esb" samples in NCS. The radios in the nRF52 and nRF54 series are mostly compatible with the radio in the nRF24 series, with the notable exception being that the 250kbps bitrate is no longer supported. Now the proprietary radio functionality is provided by a software library instead of being built into the silicon like it was on the nRF24 series; this provides more flexibility to add or extend features but it's not 100% backwards compatible due to the absence of regular ShockBurst support. I provide some backstory in this blog post.