Ebyte E840-DTU - Page 27

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