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Ebyte industrial grade Wireless Transmitter
E32-DTU (433L37)
User Manual
This manual is subject to change with the continuous improvement of the product. Please refer to the latest version of the manual.
Chengdu Ebaite Electronic Technology Co., Ltd. reserves the right of final interpretation and modification of all contents in this
statement
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Table of Contents
Summary of Contents for Ebyte E32-DTU
- Page 1 Ebyte industrial grade Wireless Transmitter E32-DTU (433L37) User Manual This manual is subject to change with the continuous improvement of the product. Please refer to the latest version of the manual. Chengdu Ebaite Electronic Technology Co., Ltd. reserves the right of final interpretation and modification of all contents in this...
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Page 2: Table Of Contents
Content 1.Introduction ................................. 1 1.2. Brief introduction ............................1 1.3. Features ................................1 2. Operation ..................................2 3. Installation parameters ............................... 4 3.1. Structure ................................4 3.2. Dimension ................................5 4. Interface definition ..............................6 4.1. Power supply Interface ............................6 4.2. RS232 interface definition ..........................6 4.3. -
Page 3: Introduction
1.Introduction 1.1. Brief introduction E32-DTU (433L37) is a high-speed 433M wireless data transmission station (with RS232/RS485 interface), LoRa spread spectrum technology, transparent transmission mode, operating in 410~441MHz band (default 433MHz), operating voltage range of 8V~28V. LoRa direct sequence spread spectrum technology will bring longer communication distance, and has the advantages of concentrated power density, strong anti-interference ability. -
Page 4: Operation
The user can choose the pressing mode or the power adapter according to the demand. 2, The use of USB to RS-232, USB to RS-485 or other ways to make the computer and data transmission station connected; Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd. - Page 5 4. If the customer needs to modify the parameters, please switch the data transmission station to the configuration mode and connect it to the computer. Then open the E32-DTU data transmission station configuration software to modify the relevant parameters. Mode 0 Factory default status Mode 3 Set parameters Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 6: Installation Parameters
Straight insert round hole, outer diameter 5.5mm, inner diameter DC power port Power interface 2.5mm Dip switch Dip switch Operating mode control Internal hole with external thread, length 10mm, characteristic Antenna interface SMA-K Interface impedance 50Ω Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 7: Dimension
E32-DTU User Manual Chengdu Ebyte Electronic Technology Co.,Ltd 3.2. Dimension Unit：mm Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 8: Interface Definition
4.2. RS232 interface definition The E32-DTU can be connected to the device via RS-232 using a standard DB-9 interface. 4.3. RS485 Interface definition The E32-DTU can connect terminals 485_A and 485_B in step 2 to terminals A and B of RS-485. Standard Function... -
Page 9: Technical Indicators
The baud rate ranges from 1200 to 115200 Address code Default 0 A total of 65536 address codes can be set 5.3. Frequency Range and Channels Default frequency Frequency range Channel interval Channel number 32，half-duplex E32-DTU (433L37) 410~441 Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 10: Air Data Rate
6. Operating mode E32-DTU has four operating modes. When there is no harsh and low power demand, it is recommended to configure the station in the general mode (mode 0) for normal communication.The radio is set to general mode (mode 0) by default when it comes out of the... - Page 11 The module enters hibernation and can Mode 3 Sleep mode receive parameter setting commands ★ Note: If there is no need for low power consumption, do not care about wake-up mode (mode 1) and power saving mode (mode Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 12: Program The Dtu
★ 1, programming can only be in a specific working mode (see the table above), programming failure, please confirm the radio working mode is correct. 2. If you do not need complex programming, open the E32-DTU data transmission station configuration software, you can modify the relevant parameters. -
Page 13: Parameters Setting Instruction
Theoretically, different frequency channels channel cannot communicate with each other. If multiple groups of radio data transmission stations exist in the same area, the communication frequency interval of 2 to 5MHz is recommended. Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 14: Connection Diagram In The Testing And Application
LoRa spread spectrum, long E32-DTU (433L30) RS232 RS485 433M distance interference LoRa spread spectrum, long E32-DTU (433L27) RS232 RS485 433M distance interference LoRa spread spectrum, long E32-DTU (433L20) RS232 RS485 433M distance interference Copyright©2025.Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 15: Practical Application
Chengdu Ebyte Electronic Technology Co.,Ltd 10. Practical application Thedata transmitter of Ebyte is suitable for all kinds of point-to-point, point-to-multipoint wireless data transmission system. For example, smart home, Internet of Things, power load monitoring, distribution network automation, hydrology and hydrological... -
Page 16: Important Statement
12. Important statement 1. Ebyte reserves the right of final interpretation and modification of all contents in this specification. 2. Due to the continuous improvement of the hardware and software of the product, this manual is subject to change without prior notice. -
Page 17: About Us
14. About us Technical support: support@cdebyte.com Documents and RF Setting download link: https://www.cdebyte.com Thank you for using Ebyte products! Please contact us with any questions or suggestions: info@cdebyte.com ------------------------------------------------------------------------------------------------------------ Web: https://www.cdebyte.com Address: B5 Mould Industrial Park, 199# Xiqu Ave, High tech Zone, Chengdu, Sichuan, China...
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