Table of Contents
Advertisement
AT$OBDBAT Enable/Disable Backup Battery
AT$OBDBAT
Command Function
Syntax Query
Syntax
Write Syntax
Write Response
Read Syntax
Read Response
Execute Syntax
Execute Response
Unsolicited Response
Parameter Values
<status>
<voltage>
Notes
Example
Enable/Disable Backup Battery
This command is used to enable/disable the internal backup battery. If this is
disabled the unit will power off as soon as main power is removed.
AT$OBDBAT=?
$OBDBAT: (0-1)
OK
N/A
N/A
AT$OBDBAT?
$OBDBAT: <status>,<voltage>
OK
N/A
N/A
N/A
0 = Internal Battery is Disabled
1 = Internal Battery is Enabled (default value)
Internal battery voltage, displayed in millivolts.
Products that do not have a battery installed will return the response of ERROR
when AT$OBDBAT is issued.
The displayed voltage reading is only meaningful when running on battery
power. When external power is available, the displayed voltage will reflect the
charging voltage.
The device will shut down if the internal backup battery voltage drops to 3.00 V
AT$OBDBAT?
$OBDBAT: 1,4753
OK
This example shows the read operation and response for a device where the
internal backup battery is enabled and the voltage reading is 4.753 V.
- 280 -
Advertisement
Table of Contents
