nRF52 slower speed for longer range possible?

[too]

We would like to use the nRF52 for an indoor application that should cover a a single family home.

The requirements for throughput are very relaxed, so we'd like to trade speed for increased range.

Is there any way to do this using the nrf52382 ?

[Petter Myhre]

On the nRF52832 there is not, but on the nRF52840 there is.

It supports the LE Coded PHY introduced in the Bluetooth 5 specification.

Then you can code each bit with eight bit, which gives you better sensitiviy on the receiver.

The throughput will go down, but the range will increase.

[Anders Strand]

Yo.

You can do this if you do not use Bluetooth Low energy, but some proprietary protocol.

If you for example use ESB (Enhanced ShockBurst), you can lower your bitrate to achieve better range.

Covering a family home might still be hard though, but you can always create some repeater devices :)

[Petter Myhre]

True for nRF51, but the nRF52 series doesn't support a lower bitrate than 1 mbps, which is already used by BLE.

[too]

Thanks for your replies. We are building a wireless sensor node. Therefore, a bidirectional link is not needed. We could only broadcast/advertise. Would that restriction give us a possibility to lower the bitrate and get to where we want?

[Petter Myhre]

If you want to use BLE you can't lower the bitrate. If you are not using BLE you can lower the bitrate if you are using nRF51.