How to scan only Advertising Packet BLE [ANDROID]

[hssn601]

While scanning for advertising beacons with startLeScan method, this method also request peripheral device for scan response and stores it in scanRecord. I only want to scan for advertising payload I don’t want to send request scan response to peripheral device

my code to scan:

mBluetoothAdapter.startLeScan(mLEScanCallback);
private BluetoothAdapter.LeScanCallback mLEScanCallback = new BluetoothAdapter.LeScanCallback() {
    @Override
public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {

}
};

[hssn601]

I am looking for a solution to BLE_GAP_ADV_TYPE_ADV_NONCONN_IND | ADV_SCAN_IND or ADV_IND on runtime as some times i need scan response and some times only advertising data.

[Hung Bui]

@hssn601: To switch between different advertising type, you would need to stop advertising, reconfigure the parameter m_adv_params.type and call sd_ble_gap_adv_start() again.

Note that if you advertise in non-connectable mode the minimum advertising interval should be >100ms

Just for curiousity, may I ask the reason why you don't want the phone to send scan request ?

[hssn601]

if phone send scan request again and again than beacon will transmit extra 32 bytes which will drain more battery, i only need scan response when needed to save battery.

[Hung Bui]

@hssn601: Then I think changing the ADV type is the best solution. You can switch to scannable advertising type periodically, e.g 5 seconds every 1 minute.