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How to change the beacon frequency and interval in the beacon app?

Johnson

I downloaded the BLE beacon app S110 v7.1.0 to a nRF51-DK board. The current measurement pins were attached to a 10 Ohm resistor.

I observed the AC-coupled voltage at one pin of the resistor on the scope. I also observed the amplitude and frequency of the RF output. A screenshot of the scope is here .

The screenshot shows three transmission pulses at 0, 20 and 80 MHz from 2.4 GHz (centre frequency). The board draws current at every transmission.

My questions are

  1. Is it possible to transmit 1 pulse only (instead of 3) in order to save power?
  2. Can the interval be increased to say 1 second? (The current interval is 100 ms.)

I'd be helpful if anyone can point to the functions that set the frequencies and interval.

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  • 0
    1. It is possible with the latest SoftDevice, 8.0.0. Please see this question. Let me know if you get into trouble doing it.
    2. Yes. For non-connectable advertising the advertising interval can be between 100ms and 10.24s. You can change it by changing the NON_CONNECTABLE_ADV_INTERVAL define in the ble_app_beacon example (SDK 8.1.0)
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  • 0
    1. It is possible with the latest SoftDevice, 8.0.0. Please see this question. Let me know if you get into trouble doing it.
    2. Yes. For non-connectable advertising the advertising interval can be between 100ms and 10.24s. You can change it by changing the NON_CONNECTABLE_ADV_INTERVAL define in the ble_app_beacon example (SDK 8.1.0)
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