AT Commands For Hardware Related
| No | Command | Description |
| F2001 | AT+CVALARM | Set overvoltage and undervoltage alarm |
| F2002 | AT+CADC | Read the value of ADC |
| F2003 | AT+CADC2 | Read the value of ADC2 |
| F2004 | AT+CMTE | Set the power action when over the critical temperature |
| F2005 | AT+CPMVT | Set the power action when overvoltage and undervoltage |
| F2006 | AT+CDELTA | Set module reboot to recovery mode |
| F2007 | AT+CBC | Read the voltage value of the power supply |
| F2008 | AT+CPMUTEMP | Read the temperature of the modules |
| F2009 | AT+CUSBCFG | Set usbid,adb mode,edl mode and bootloader mode |
| F2010 | AT+CCPUTEMP | Read the temperature of CPU different zones |
| F2011 | AT+CCUART | Open or close the main uart |
F2001 AT+CVALARM Low And High Voltage Alarm
This command is used to open or close the low voltage alarm function.
| T) AT+CVALARM=? |
+CVALARM: (list of supported <enable>s), (list of supported <low voltage>s), (range of supported <high_voltage>s) OK |
| R) AT+CVALARM? |
+CVALARM: <enable>,<low voltage>,<high voltage> OK or ERROR |
| W) AT+CVALARM=<enable>[,<low voltage>],[<high voltage>] |
OK or ERROR |
| <enable> | 0 close alarm(Default) 1 open alarm |
| <low voltage> |
Integer type. The undervoltage value of the module. The parameter range is 3300mV to 4000mV depending on hardware design. 3300mV(Default) |
| <high voltage> |
Integer type. The overvoltage value of the module. The parameter range is 4001mV to 4300mV depending on hardware design. 4300mV(Default) |
| Example |
AT+CVALARM=? +CVALARM: (0,1),(3300-4000),(4001-4300) OK AT+CVALARM? +CVALARM: 1,3400,4300 OK AT+CVALARM=1,3400,4300 OK |
NOTE
If voltage < <low voltage>, it will report “UNDER-VOLTAGE WARNNING” every 10s. If voltage > <high voltage>,
it will report “OVER-VOLTAGE WARNNING” every 10s.
F2002 AT+CADC Read the value of ADC
This command is used to read the ADC value from modem. ME supports 2 types of value, which are raw type and voltage type.
| T) AT+CADC=? |
+CADC: (range of supported <adc>s) OK |
| W) AT+CADC=<adc> |
+CADC: <value> OK or ERROR |
| <adc> |
0 raw data type 2 voltage type in mV |
| <value> | Integer type |
| Example |
AT+CADC=? +CADC: (0,2) OK AT+CADC =0 +CADC: 187 OK |
F2003 AT+CADC2 Read the value of ADC2
This command is used to read the ADC2 value from modem. ME supports 2 types of value, which are raw type and voltage type
| T) AT+CADC2=? |
+CADC2: (list of supported <adc>s) OK |
| W) AT+CADC2=<adc> |
+CADC2: <value> OK or ERROR |
| <type> |
0 raw data type 2 voltage type in mV |
| <value> | Integer type value of the ADC2. |
| Example |
AT+CADC2=? +CADC2: (0,2) OK AT+CADC2=0 +CADC2: 187 OK |
F2004 AT+CMTE Control The Module Whether Power Shutdown When The Module’s Temperature Upon The Critical Temperature
This command is used to control the module whether power off when temperature upon the critical temperature.
| T) AT+CMTE=? |
+CMTE: (list of supported<on/off>s) OK |
| R) AT+CMTE? |
+CMTE: <power_off> OK or ERROR |
| W) AT+CMTE=<on/off > |
OK or ERROR |
| <power_off> | 0 no action(Default) 1 power off |
| Example |
AT+CMTE=? +CMTE: (0,1) OK AT+CMTE? +CMTE: 1 OK AT+CMTE=0 OK |
L1907 AT+CPMVT Set the power action when overvoltage and undervoltage
This command is used to open or close the power off action when undervoltage and overvoltage.
| T) AT+CPMVT=? |
+CPMVT: (list of supported <enable>s), (list of supported <low voltage>s), (list of supported <high voltage>s) OK |
| R) AT+CPMVT? |
+CPMVT: <power_off>,<low voltage>, <high voltage> OK Or ERROR |
|
W) AT+CPMVT=<enable>[,<low voltage>], [<high voltage>] |
OK Or ERROR |
| <power_off> |
0 no action(Default) 1 power off |
| <low voltage> |
Integer type. The undervoltage value of the module. The parameter range is 3200mV to 4000mV depending on hardware design. 3200mV(Default) |
| <high voltage> |
Integer type. The overvoltage value of the module. The parameter range is 4001mV to 4300mV depending on hardware design. 4300mV(Default) |
| Example |
AT+CPMVT=? +CPMVT: (0,1),(3200-4000),(4001-4300) OK AT+CPMVT? +CPMVT: 1,3400,4300 OK AT+CPMVT=1 OK |
NOTE
If voltage < <low voltage>, it will report “UNDER-VOLTAGE WARNNING POWER DOWN” and power
off the module. If voltage > <high voltage>, it will report “OVER-VOLTAGE WARNNING POWER DOWN” and power off the module.
F2006 AT+CDELTA Set module reboot to recovery mode
| W) AT+CDELTA |
OK or ERROR |
| Example |
AT+CDELTA OK |
NOTE
the command will write flag to the module and reboot the module, then the module will reboot and read the flag and enter recovery mode to update the firmware.
F2007 AT+CBC Read The Voltage Value Of The Power Supply
| R) AT+CBC |
+CBC: <value> OK or ERROR |
| <value> | The voltage value, such as 3.8. |
| Example |
AT+CBC +CBC: 3.657V OK |
F2008 AT+CPMUTEMP Read The Temperature Of The Module
| R) AT+CPMUTEMP |
+CPMUTEMP: <temp> OK or ERROR |
| <temp> | Char type |
| Example |
AT+CPMUTEMP +CPMUTEMP: 28 OK |
F2009 AT+CUSBCFG Set usbid,adb mode,edl mode and bootloader mode
| T) AT+CUSBCFG=? |
BOOTLDR BOOTEDL USBADB: (list of supported <adb_state>s) USBID: <vendor_id>,(list of supported <product_id>s) OK |
| R) AAT+CUSBCFG? |
USBADB: <adb_state> USBID: <vendor_id>,<product_id> OK or ERROR |
|
Switch to fastboot port W) AT+CUSBCFG=bootldr |
No Responses |
|
Switch to 9008 port W) AT+CUSBCFG=bootedl |
No Responses |
| Open/close adb port W) AT+CUSBCFG=usbadb,<ad b_state> |
OK Or ERROR |
| Modify usb pid/vidt W) AT+CUSBCFG=usbid,<vend or_id>,<product_id> |
OK Or ERROR |
|
Query usb mode W) AT+CUSBCFG=USBMODE |
USBMODE: <usb_state> OK or ERROR |
| E) AT+CUSBCFG | OK |
| <vendor_id> | 1E0E | |
| <product_id> |
9001 9011 901E 9003 |
|
| <adb_state> |
0 Close ADB port 1 Open ADB port |
|
| <usb_state> |
USB3.0 USB2.0 |
|
| Example |
AT+CUSBCFG=? BOOTLDR BOOTEDL USBADB: (0,1) USBID: 1E0E,(9001,9011,901E,9003) OK AT+CUSBCFG? USBADB: 0 USBID: 0X1E0E,0X9001 OK AT+CUSBCFG=bootldr (NO RESPONSES) AT+CUSBCFG=bootedl (NO RESPONSES) AT+CUSBCFG=usbadb,1 OK AT+CUSBCFG=usbid,1e0e,9011 OK AT+CUSBCFG=usbmode USBMODE: USB3.0 OK |
NOTE
1. When default composition is 9011 , you may need to execute AT+NETACT=1 to turn on network.
After AT+CUSBCFG=usbadb,1/0 not need to excute AT+CRESET
2. AT+CUSBCFG=bootldr and AT+CUSBCFG=bootedl no response,
when use those commands,the device directly enters the corresponding mode.
F2010 AT+CCPUTEMP Read the temperature of CPU different zones
| T) AT+CCPUTEMP=? |
+CCPUTEMP: (0-6) OK |
| W) AT+CCPUTEMP=<zone> |
+CCPUTEMP: <temp> OK or ERROR |
| <temp> | int type |
| <zone> | 0-6 |
| Example |
AT+CCPUTEMP=2 +CCPUTEMP: 28 OK |
F2011 AT+CCUART Open or close the main uart
| T) AT+CCUART=? |
+CCUART: (0-1) OK |
| W) AT+CCUART=<on/off> |
OK or ERROR |
| R) AT+CCUART? |
+CCUART: <on/off> OK orERROR |
| E) AT+CCUART | OK |
| Parameter Saving Mode | AUTO_SAVE_REBOOT |
| <on/off> |
on 1 off 0 |
| Example |
AT+CCUART=1 OK AT+CCUART? +CCUART: 0 OK |
NOTE
1.The M2 hardware and open SDK main uart default is close.
WiFi IoT Module
Bluetooth Module
5G/LTE/CAT-M1/NB-IoT
