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Ebyte E90-DTU User Manual
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Ebyte E90-DTU User Manual

Ebyte E90-DTU User Manual

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Summary of Contents for Ebyte E90-DTU

  • Page 2: Table Of Contents

    4Quick Start ..................................14 4.1Default parameter ..............................14 4.2SOCKET instruction ............................... 15 4.3TCP Client guidance ............................... 15 4.4TCP Server guidance ...............................16 4.5UDP Client guidance ...............................18 4.6UDP Server guidance .............................. 19 4.7WEB introduction ..............................21 Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 3: Product Overview

    E90-DTU(900SL22-ETH) User Manual 1. Product Overview Introduction The E90-DTU (900SL22-ETH) supports adaptive network speed (up to 100M full-duplex) and provides four working modes: TCP Server, TPC Client, UDP Server, and UDP Client. It also supports two-way SOCKET work. The wireless communication adopts...

  • Page 4: Wireless Parameter

    Distance 5000m of 2.5 m，air data rate 2.4 kbps Can be set as 32/64/128/240 Transmission length 240 Byte bytes each packet Receiving length 1000 Byte — Modulation method New generation LoRa — Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 5: Dimension And Pin Definition

    Chengdu Ebyte Electronic Technology Co., Ltd E90-DTU(900SL22-ETH) User Manual 2.3 Dimension and pin definition Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 6: Connection Method

    Power supply ， default 8-28V （ 5V can be customized ） ， recommend DC-IN 12V/24V ETHERNET RJ45 , to connect to PC or other device Power indicator LINK Connection indicator DATA Serial port TX and RX indicator Reload Restore to factory setting Connection method Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 7: Product Function

    (2) E90-DTU-(900SL22-ETH) When attempting to connect to the server in TCP Client mode and the local port is 0, the connection is initiated with a random port each time.

  • Page 8: 4Udp Client

    IP. (2) In UDP Client mode, E90-DTU-(900SL22-ETH) will only communicate with the target port of the target IP. If the data is not from this channel, the data will not be received by E90-DTU-(900SL22-ETH).

  • Page 9: 5Udp Server

    The communication format is: 00 01 80 AA BB CC, where 00 01 is the module B address and 80 is the module B channel, then module B can receive the AA BB CC (other modules do not receive data). Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 10: 8Broadcasting And Monitoring

    ⚫ Command format：C0 C1 C2 C3 + starting address + read length ⚫ Return：C1 + address address+read length+read valid value；for example：send C0 C1 C2 C3 00 01 ⚫ Return C1 00 01 rssi Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 11: Featured Function

    3.2.2Heartbeat function In the network transparent transmission mode, heartbeat packet can be sent by E90-DTU-(900SL22-ETH). The heartbeat packet can be sent to the web server. The main purpose is to maintain a connection with the server, which only takes effect in the TCP Client and UDP Client modes.

  • Page 12: 3Registration Package Function

    If there is no data reception in the serial port or network port within the set time, the connection will be automatically disconnected. The short connection function is turned off by default, and the disconnection time can be set after the function is turned on. The setting range is 2~255S. Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 13: 6Keepalive Function

    3.2.7Timeout restart function The timeout restart (no data restart) function is mainly used to ensure that the E90-DTU-(900SL22-ETH) works stably for a long time. When the network port does not receive data for a long time, or the network does not receive data for a long time, E90-DTU-( The 900SL22-ETH) will restart after the set time has elapsed to avoid anomalies affecting communication.

  • Page 14: 10Restore To Factory Setting

    0（s），turn off heartbeat Socket B1 heartbeat package content heartbeat msg Socket B1 register package mode Turn off Socket B1 register package content regist msg Socket B1 short connection time 0（s），turn off short connection Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 15: Socket Instruction

    Preparation： Set the IP address of the PC to the same network segment as E90-DTU (SL), and the subnet mask is the same. For example, the IP of the PC is 192.168.4.100, and the IP of the module is 192.168.4.101.；...

  • Page 16: Tcp Server Guidance

    1. Set the” network debugging assistants “ on computer A and computer B as TCP Client, the remote host IP is set to 192.168.4.101, and the remote host port number is set to 8886. Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...
  • Page 17 2、Set the SOCKET A1 network type of Device A and Device B to TCP Server and local port 8886. Click Save to restart the module.。 3、 The DTU is connected via Network Debugging Assistant for communication test as shown below. Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 18: Udp Client Guidance

    2. Set the SOCKET A1 network type of device A and device B to UDP Client, the target IP address is 192.168.4.100, and the destination port is 8887. Click Save to restart the module. Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 19: Udp Server Guidance

    4.6UDP Server guidance 1、 Set “Network Debugging Assistant”: as UDP ( no need to tell UDP Client and UDP Server） ， set local host IP as 192.168.4.101， local port as 8886，remote host as 192.168.4.101:8887. Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...
  • Page 20 2、Set the SOCKET A1 network type of device A and device B to UDPS (UDP Server) and local port 8887. Click Save to restart the module. 3、 The DTU is connected via Network Debugging Assistant for communication test as shown below. Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

  • Page 21: Web Introduction

    80) through any browser. After the login is successful, the web page is entered. as the picture shows： Select one or more pages for parameter browsing and configuration according to specific needs (take LoRa settings as an example)。 Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...
  • Page 22 E90-DTU(900SL22-ETH) User Manual After entering parameter, click “Save setting” The page will automatically jump to the module management page. After restarting the module, the module will restart and the set parameters will take effect. Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...
  • Page 23 Chengdu Ebyte Electronic Technology Co., Ltd E90-DTU(900SL22-ETH) User Manual Copyright ©2012–2025, Chengdu Ebyte Electronic Technology Co., Ltd...

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