5.3.3.1 Start Bluetooth Low Energy Scanning (F[,<hex16>,<hex16>])
Format:
F[,<hex16>,<hex16>]
Use command F to automatically switch the device into central GAP role
and start Bluetooth Low Energy scanning.
If no parameter is provided, command F starts the process of scanning with a
default scan interval of 375 ms and a scan window of 250 ms. The command
F receives two optional parameters that determine the scan interval
and scan window. The input parameters are 16-bit hex format. Each parameter (scan
interval and scan window) has a unit of 0.625 ms. The scan interval and the scan window
values can range from 2.5 ms to 40.959s.
Note: The scan interval must be larger than or equal to the scan
window. Use the
X command to stop an active scan.| Default | 375 ms for scan interval, 250 ms for scan window | |
| Example: | F,01E0,0190
|
// Start inquiry with 300 ms scan interval and 250 ms scan window |
| Response: | Scanning |
// Start scanning |
%<Address>,<Addr_Type>,<Name>,<UUIDs>,<RSSI>>,<Tx
PHY>,<Rx PHY>% |
// Connectable | |
%<Address>,<Addr_Type>,<RSSI>,Brcst:<Broadcast
Payload>% |
// Non-connectable | |