Is nRF24 line still the best option for lowest latency?

[robert]

Super general question :)

Our current products use nRF24 chips (paired with 8bit AVR's) and we're very happy with performance.

For us the key requirements are low latency and low power (broadcasting 8 byte messages at around 200 per second - no ack).

We're now looking at our next-gen product and nRF24 still seems to be the best fit.

Are there any other Nordic products we should be looking at ? Is bluetooth (anyflavour) able to reach the super low latency we get out of nRF24 ?

Cheers

Rob

[Martijn]

With nrf5x you don't have to do Bluetooth if you don't want to .. you can achieve the same and even more low power than with an nrf24. Because you don't need an external uC.

[Hung Bui]

Hi Rob,

I agree with the answer from Martijn. Using one chip solution, you don't have to use SPI interface to communicate with the radio, hence can save some latency.

In addition, on the nRF5x series, the radio has EasyDMA mechanism to access memory directly, saving time compare to solution that needs the CPU get involved.

Also the nRF5x series has much more powerful CPU, makes it faster to configure the registers, and on the nRF52 the radio start up time is also faster.