Specifications

SIM900 AT Command Manual
SIM900_AT Command Manual_V1.03 140 12/24/2010
+CMTE: <mode><Temperature>
OK
AT+CMTE?
Parameters
See Write Command
Response
OK
ERROR
Write Command
AT+CMTE=
<mode>
Parameters
<mode>
0 disable temperature detection
1 enable temperature detection
<Temperature> range of -40 to 90
Reference Note
z When temperature is extremely high or low, product will power off.
z URCs indicating the alert level "1" or "-1" are intended to enable the
user to take appropriate precautions, such as protecting the module
from exposure to extreme conditions, or saving or backing up data etc.
z Level "2" or "-2" URCs are followed by immediate shutdown.
6.2.28 AT+CBTE Battery Temperature Query
AT+CBTE Battery Temperature Query
Response:
+CBTE: <voltage>
OK
Read Command
AT+CBTE ?
Parameter
<voltage> battery voltage(mV)
Reference Note
z Only supported in SIM900D
z The temperature can be calculated according to the resistance of NTC
and the voltage supported by this command.
6.2.29 AT+CSDT Switch On or Off Detecting SIM Card
AT+CSDT Switch On or Off Detecting SIM Card
Response
+CSDT: (0-1)
OK
Test Command
AT+CSDT =?
Parameter