Chengdu Ebyte Electronic Technology Co.,Ltd
E840-DTU(4G-02E) User Manual
Copyright ©2012–2019
,
Chengdu Ebyte Electronic Technology Co.,Ltd
27
parameter
:
ctrl
EBYTE IoT function switch
,
0 off/1 on
Note: After the IoT cloud function is enabled, the module is automatically connected to the Yiyi special IoT platform,
ignoring the sock configuration, registration package, and heartbeat package function.
AT+CSQ
Function
:
inquire signal strength
Format
:
configure
transmit AT+CSQ<CR><LF>
return <CR><LF>+OK=<csq><CR><LF>
parameter
:
csq
signal strength
description
:
none
AT+CREG
Function
:
inquire whether it is registered with the carrier.
Format
:
configure
transmit AT+CREG<CR><LF>
return <CR><LF>+OK=<creg><CR><LF>
Parameter
:
creg
1
Register to the network
0
not registered to the network1
Description
:
None
AT+CPIN
Function
:
inquire SIM card status
Format
:
configure
transmit AT+CPIN<CR><LF>
return <CR><LF>+OK=<cpin><CR><LF>
Parameter
:
cpin
1
Able to detect SIM card
0
unable to detect SIM card
Description
:
None
AT+ POTOCOL
Function
:
Set/inquire Whether to enable protocol transmission (valid under 4G multi socket)
Format
:
inquire
transmit
:
AT+ POTOCOL <CR>
return
:
<CR><LF>+OK=<sta><CR><LF>
configure
transmit
:
AT+ POTOCOL =<data><CR>
return
:
<CR><LF>+OK<CR><LF>
Parameters: data status
ON Turns on the transmission of the EBYTE protocol
OFF Turns off the he transmission of the EBYTE protocol
AT+ UARTEX
(
extending command
)
function
:
Set/inquire serial port parameter
(
AT+UART is for configuring baud rate and parity only
)
format
:
inquire
transmit
:
AT+ UARTEX <CR>
return
:
<CR><LF>+OK=<sta><CR><LF>
configure
transmit
:
AT+ UARTEX =<baud>,<data bit>,< parity>,<stop><CR>
return
:
<CR><LF>+OK<CR><LF>
parameter
:
baud: UART baud can be configured as levels below
:
9600,
19200,
38400,
57600,
115200,
230400,
460800,
921600,
data bit
:
UART data bit
8
,
length is 8 bits
7
,
length is 7 bits
Содержание 4G-02E
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