User's Manual

Table 6 Connection Parameters
Parameter
Range
Description
Interval
0x0006 – 0x0C80
The time interval of communication
between two connected devices. (unit:
1.25ms)
Latency
0x0000 – 0x01F3
must less than
(Timeout*10/Interval*1.25-
1)
The number of consecutive connection
events that the peripheral does not
need to communicate with central.
Timeout
0x000A – 0x0C80
The maximum time between raw
communications before the link is
considered lost. ((unit: 10ms)
Default: 0006,0000,0064
Example: ST,0064,0002,0064 // Set the interval to be 125ms,
// latency to be 2 and timeout to
// 1 second
3.2.1.18 SV,<hex16>
This command set the battery monitor threshold. This command took effect if
battery monitor feature is enabled by command “SR”. The parameter is the battery
voltage in mV. Battery voltage is checked once per 10 minutes. Once the battery
voltage is lower than the threshold, message “Battery Low” is output to UART and
the event of low priority alert is generated.
Default: 09C4 // default battery voltage threshold 2500mV
Example: SV,0A28 // Set battery voltage threshold 2600mV
3.3.2 Action Commands
The group of action commands is mainly used to initiate functionality as well as
display critical information.
3.3.2.1 +
Command “+” toggles the local echo on and off. If send the “+” command in
command mode, all typed characters are echoed to the output. Typing + again will
turn local echo off. Command “+” does not have parameter.
Default: Off
Example: + // Turn local echo on