$NVST,<odometer_km>,<runtime_hrs>
Disable Acknowledgment (NACK)
Suppress the response to a given command (SMS/TCP mode)
NMEA enable (NMEA)
Enable NMEA GPS output on the serial port. A value of 1 enables $GPRMC only, a higher value
enabled all NMEA sentences and zero disables all NMEA GPS output (see DBUG to enable/disable
other serial output).
Serial Port Baud Rate (BAUD)
Configure the baud rate of the AT240 RS232 serial port
Display Settings (SHOW)
Display settings in readable ASCII format (not recommended for TCP/SMS, see PARA)
Send SMS (SSMS)
Send an SMS text message.
$SSMS,<gsm_number>,<message>
This command is intended to engineering purposes, typically to check/confirm GSM telephone
number for unknown SIMs. The implementation does not provide any message buffering or
communication retries etc. and hence it is not recommended for operation applications.
Device Shutdown (SHDN)
This sets the device to sleep mode and turns off the immobiliser output for a specified number of
minutes or indefinitely.
$SHDN,<minutes>
Where <minutes> is in the range 1 to 65535. The <minutes> parameter is optional and if it is
omitted the shutdown is indefinite.
