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nRF52811 for AoA on Receiver Side and nRF52832 On Transmitter Side

Hi,

Is possible for the nRF52811 to measure AoA on the receiver side with nRF52832 on the transmitter side?

Thank You,

David

  • Hi David

    This is not possible unfortunately. 

    The direction finding feature requires some additional fields to be added to the data packet, and this is not supported in the nRF52832. 

    At the moment the only device that supports direction finding is the nRF52811. 

    Best regards
    Torbjørn

  • Hi Torbjorn,

    Can the transmitter end be nRF52840 or both ends have to be nRF52811 even just to find AoA? I guess they are in 5.1 packets not 5.0 packets.

    Thank you,

    David

  • Hi David

    The nRF52840 will not work either. 

    Both ends would have to be using the nRF52811. 

    Best regards
    Torbjørn

  • I'm interested in this also. If the only requirement at the Tx end is to switch on the extended CW burst at the end of the packet, why can't this be done on the nRF52840? Obviously it would require a modification to the softdevice or SDK but I don't understand why it can't be done using the existing radio hardware (?)

  • Hi Pete

    While there is some flexibility in the nRF52840 radio with regards to packet configuration and similar it's not a true soft radio implementation where you can do pretty much anything. 

    The main limitation is that the CTE data has to be added after the CRC field is transmitted, and there is no support in the nRF52840 or earlier devices to add data after the CRC. The CRC will always be the very last thing that is transmitted or received. 

    Best regards
    Torbjørn

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