Chengdu ebyte electronic Technology Co.,Ltd.
E840-TTL-GPRS03 User Manual
Copyright ©2012–2017
，
Chengdu ebyte electronic Technology Co.,Ltd.
8
4. Base station positioning
The E840-TTL-GPRS03 supports the base station positioning function. The user can send the AT+LBS command
in the AT mode to read the current LBS information of the device. The device returns the data format as follows:
+OK=LAC,xxxx;CID,xxxx, where LAC is the unique identification number of the global cell, CID is the base station
number, (xxxx is the hexadecimal value);
The LAC and CID number can be used to query the current location information of the device. For the query
method, refer to the link:
5. Ebyte IoT platform
AT+EBTIOT command is used to set whether the module enables the transparent transmission function of
the Ebyte cloud platform, after the device is turned on, the information such as the heartbeat and registration
package configured by the user will be invalid. The user only needs to set the forwarding relationship of the
corresponding device to the platform to implement the transparent transmission. For details of the related
operations, please refer to the "Transparent Transmission Guide for Ebyte Cloud Platform ".
6. AT Command
a) Command format
：
AT+<CMD>[op][ para1, para2, para3,…]<CR><LF>
AT+
：
Command prefix
CMD
：
Control command
[op]
：
“=”indicate parameter configuration
“NULL”indicate parameter query
[para-n]
：
parameter list
<CR><LF>
：
Enter, start new line
，
ASCII 0x0D 0x0A
b) Error code
：
Error code
Description
-1
Invalid command format
-2
Invalid command
-3
Invalid Operator
-4
Invalid parameter
-5
Operation not allowed
c) Command set
：
Command
Description
REBT
Restart Module
VER
Query version number
INFO
Query device info.
EXAT
Exit AT command mode
RESTORE
Restore factory setting
UART
Set/Query UART parameter
