Ebyte E840-DTU User Manual
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Ebyte E840-DTU User Manual

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E840-DTU(4G-02E）E840-DTU(4G-02E）

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Summary of Contents for Ebyte E840-DTU

  • Page 1 E840-DTU(4G-02E）E840-DTU(4G-02E）...

  • Page 2: Table Of Contents

    1.3 Interface description................................. 6 1.4 Pin definition..................................7 2.1 Hardware...................................9 2.2 Data transmission test..............................10 Demonstration：...................................11 3. AT command..................................20 4 .Notes....................................31 5. Important Statement................................32 6. Reversion History................................32 7. About Us................................... 32 Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 3: Features

    Chengdu Ebyte Electronic Technology Co.,Ltd E840-DTU(4G-02E) User Manual E840-DTU(4G-02E ） is developed for serial port devices and network servers to transmit data to each other through a network.It is a LTE-FDD/WCDMA/GSM wireless communication data transmission modem with diversity receiving function, supporting LTE-FDD, DC-...

  • Page 4: Introduction

    1. Product overview 1.1 Introduction E840-DTU (4G-02E) is an LTE digital transmission module product launched by E-Tech. The software of this product is fully functional and covers most common application scenarios. Users can implement serial-to-network server through simple setup. Two-way data transparent transmission.
  • Page 5 11uA @ power off Consumption 1.8mA @LTE sleep (PF=128) （Typical） 1.5mA @LTE sleep (PF=256) 20mA @idle Bandwidth 1.4/3/5/10/15/20MHz Operating -30℃- +70℃ extending to -40℃~+85℃ temperature Operating voltage DC ８V~２８V Size 82×84×24mm RS485 /RS232 RS485/RS232 Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 6: Interface Description

    Chengdu Ebyte Electronic Technology Co.,Ltd E840-DTU(4G-02E) User Manual 1.3 Interface description Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 7: Pin Definition

    Green: device status indication pin, Low: The device is powered on to search for a WORK SIM card 1800ms low, 200ms high: The device checks the correct SIM card and is attaching to the network; High: The device is attached to the network successfully; Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 8 3~10S, then from bottom to top. After the process is completed Restore normally, the radio parameters will be restored to the factory settings and restarted immediately. SIM card slot Antenna （SMA-K，50Ω impedance） Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 9: Hardware

    English characters between IP instructions), if it is SOCK1, SOCK2, SOCK3, need to be The front-end plus enable command (see the AT command description section for details). SOCK settings For example: AT+SOCK=TCPC, 116.62.42.192, 31687 SOCK1, SOCK2, SOCK3 settings For example: AT+SOCK1=0, TCPC, 116.62.42.192, 31687 Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 10: Data Transmission Test

    The actual connection is based on the IP of the server to be connected. 5. After the base station is connected, the NET light is always on to indicate that the server is connected, and transparent transmission is possible at this time. 2.2 Data transmission test Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 11: Demonstration

    +OK=E840-DTU(4G-02E)_V1.0 Transmit：AT+SOCK2=1,TCPC,116.62.42.192,31687 //open SOCK2 and configure the network server parameters that SOCK2 will connect to (the parameter used here is Ebyte test server, not recommended for users) Transmit：AT+LINKSTA2 //read if SOCK2 has started connection with server +OK=Connect Transmit：AT+POTOCOL=ON...
  • Page 12 Clear the cache: Before the connection to the server is established, the data received by the serial port will be cached. When the connection with the server is established, you can choose whether to clear the cached data. By default, Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 13 3、 High speed mode The E840-DTU(4G-02E) is designed with a separate high-speed mode. In this mode, both the network and the device can transmit any packet length data, such as file, picture, and video. Configure/query the high-speed mode state through the AT+HSPEED command. After the high-speed mode is enabled, the device can transmit any packet length data at 230400 serial port baud rate and below.
  • Page 14 4). The server (the external network mapping used for this demo, the server is the TCP debugging tool), after receiving the data, it is as follows： 5). Save the data as an .exe trial file type. This time it is named RF.exe, as shown below:： Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 15 E840-DTU(4G-02E) User Manual 6)Click on the server to run RF.exe to test the file, as shown below： In summary, the E840-DTU(4G-02E) completes the remote transfer of files from the serial port to the network server. 4、SMS function E840-DTU(4G-02E) can support SMS sending and receiving, SMS remote configuration function (inserted SIM card needs to support SMS service).
  • Page 16 SMS sending: In AT mode, send AT+SMSSEND=number, data to complete the SMS sending, where number refers to the receiving number, and data refers to the data to be sent. The demo is shown below: Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 17 <Head>AT+CMD, where <Head> is the device SMS identifier. The factory default is: EbyteSMS, CMD is the corresponding command. Specifically, you can view the introduction of AT commands. In this demonstration, remotely use the mobile phone to query the SOCK1 link information of the device: Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 18 : 01 06 00 01 00 01 19 CA (ModbusT RTU); Note: In the Modbus TCP standard protocol, the transaction element identifier needs to be specified. In E840-DTU- (4G-02E), the user can configure the value through AT+MTCPID, and when the value is configured to 0, the receiving end All data conforming to the Modbus TCP protocol will be parsed, otherwise only packets with the same application packet identifier and device configuration identifier will be converted.
  • Page 19 The AT+EBTIOT command is used to set whether the module enables the transparent transmission function of the EBYTE cloud platform, after it is turned on, the information such as the heartbeat and registration packet 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 device.
  • Page 20 10、MQTT protocol Support devices to access Alibaba Cloud, oneNET, Baidu Cloud, and all IoT platforms that support the standard MQTT protocol. For detailed access, please refer to the documentation of the access phase platform; Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 21: At Command

    (ASCII ,HEX） REGINFONEW HEARTMOD set/inquire heartbeat packet mode set/inquire self-defined heartbeat packet info.(ASCII） HEARTINFO set/inquire heartbeat packet info.（ASCII, HEX） HEARTINFONEW HEARTM set/inquire heartbeat packet time SHORTM set/inquire short connection time Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 22 Chengdu Ebyte Electronic Technology Co.,Ltd E840-DTU(4G-02E) User Manual EBTIOT set/inquire to enable Ebyte IoT Cloud Platform CREG Inquire if it is registered to network Inquire signal strength CPIN Inquire SIM card status POTOCOL set/inquire if protocol transmission mode starts set/inquire serial port parameter(9600,8，N，1)
  • Page 23 Format： inquire transmit：AT+LINKSTA<CR> return：<CR><LF>+OK=<sta><CR><LF> Parameter： whether establish TCP connection，Connect(TCP connection)/ Disconnect(TCP cut off) AT+LINKSTA1 Function： inquire TCP whether TCP connection is established Format： inquire transmit：AT+LINKSTA1<CR> return：<CR><LF>+OK=<sta><CR><LF> Parameter： whether establish TCP connection，Connect(TCP connection)/ Disconnect(TCP cut off) Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 24 UDPC corresponding UDP client The IP address or domain name of the target server when the module is set to "CLIENT" Port The port number of the server, in decimal, less than 65535. AT+SOCK3 Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 25 ASCII code within 40 bytes, when the registration packet type is HEX, the content must be in the legal HEX format and the length must be an even number. AT+HEARTMOD Function： set/inquire heartbeat mode Format： inquire transmit：AT+ HEARTMOD<CR> Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 26 SHORTM<CR> return：<CR><LF>+OK=<time><CR><LF> configure transmit：AT+ SHORTM=<time><CR> return：<CR><LF>+OK<CR><LF> parameter： time short connection time， 0 off，from 2-255 second AT+EBTIOT Function： set /inquire EBYTE IoT Cloud platform Format： inquire transmit：AT+EBTIOT <CR> return：<CR><LF>+OK=<ctrl><CR><LF> configure transmit：AT+EBTIOT =<ctrl><CR> return：<CR><LF>+OK<CR><LF> Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 27 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）...
  • Page 28 Serial port break frame packaging time：（50~2000）ms Length Serial port packaging length：（20~1024）bytes AT+ SMSSEND Function： transmit SMS command Format： transmit transmit：AT+ SMSSEND =<number>,<info> <CR> return：<CR><LF>+OK<CR><LF> Parameter： Number :receiver’s phone number info: transmitted content（English or number） Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 29 Remarks: The network AT identifier can be up to 19 characters long. AT+MQTTMODE Function: Set / query MQTT mode Format: Configuration Send: AT+ MQTTMODE =<mode> <CR> Returns: <CR><LF>+OK<CR><LF> Inquire Send: AT+ NETHEAD <CR> Returns: <CR><LF>+OK=<value><CR><LF> Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 30 MQTT mode is set to 3, That is to access Baidu cloud or other platforms that support the standard MQTT protocol, value2 is the password. AT+MQTT_SUBSCRIBE_TOPIC Function: set / query MQTT platform address, port Format: Configuration Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...
  • Page 31 Function: Set/query the three elements of Alibaba Cloud platform. When MQTT mode is set to 1, it needs to be configured when accessing Alibaba Cloud. Format: Configuration Send: AT+ MQTT_ALIAUTH =<value0><value1><value2> <CR> Returns: <CR><LF>+OK<CR><LF> Inquire Send: AT+ MQTT_ALIAUTH<CR> Returns: <CR><LF>+OK=<value0><value1><value2><CR><LF> Parameters: <value0> product key <value1>device name <value2> device key Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd...

  • Page 32: Notes

    Only the first Socket effective link is valid, and the protocol distribution data is not supported. After the EBYTE cloud transparent transmission function is enabled, the high-speed mode is invalid. ...

  • Page 33: Important Statement

    Chengdu Ebyte Electronic Technology Co.,Ltd E840-DTU(4G-02E) User Manual 5. Important Statement All rights to interpret and modify this manual belong to Ebyte.  This manual will be updated based on the upgrade of firmware and hardware, please refer to the latest version.

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