1. How to capture BLE advertising data (full channel at 37,38,39 simutanueously)
   * Hardware：One BLE device (has feature of advertising);
         One HOLLONG BLE SNIFFER
   * Software：Hollong BLE sniffer software
        Download：

PDU Type
    b3b2b1b0 Packet Name
    0000 ADV_IND： connectable undirected advertising event
    0001 ADV_DIRECT_IND：connectable directed advertising event
    0010 ADV_NONCONN_IND：non-connectable undirected advertising event
    0011 SCAN_REQ：scan request
    0100 SCAN_RSP: scan response
    0101 CONNECT_REQ：connection request
    0110 ADV_SCAN_IND：scannable undirected advertising event
    0111-1111 Reserved