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Chengdu Ebyte Electronic Technology Co.,Ltd.                                                                                                                                    E31-433T17D User Manual 

 

Copyright ©2012–2019

Chengdu Ebyte Electronic Technology Co.,Ltd.

                                                                                                                                      

 

1.    Overview 

1.1 Introduction 

 

E31-433T17D  is a 433M  SMD  wireless serial port 

module (UART)  with AXSEM AX5243  RF chip imported  
from  Switzerland,  half  duplex,  transceiver  integrated, 
transparent 

transmission 

mode, 

425~450.5M H z 

frequency band (default 433MHz),  TTL level output with 
air wake-up  function (ultra  low power consumption). 

The  module  has  a  FEC  forward  error  correction 

algorithm,  which  has high  coding efficiency  and  strong 
error  correction  capability.  In  the  case  of  sudden 
interference,  it can actively correct the interfered  data packets, greatly improving  reliability  and transmission distance. In 
the absence of FEC,  such packets can only be discarded. The module  has data encryption and compression function. The 
data transmitted by the module  in the air is random, and the data interception is  meaningless through strict encryption and 
decryption algorithms. The data compression function has the probability of reducing the transmission time,  reducing the 
probability of interference,  improving  reliability  and transmission efficiency. 

E31-433T17D  strictly abides by FCC,  CE,  CCC  and other domestic and foreign  design specifications, meets all  RF 

related certifications, and meets export requirements. 

1.2 Features 

 

The real testing distance reaches 2km; 

 

The max  transmitting power is 50mW,  multi-level  is adjustable via the software; 

 

Support global license-free  ISM 433MHz  band;   

 

Support data transmission rate from  1.2kbps to 70kbps; 

 

Support low power mode, suitable for battery applications; 

 

Supports 2.3V~5.2V  power supply, and more  than 2.3V  power supply can guarantee the best performance; 

 

Support advanced ultra-narrow band GFSK  modulation. 

 

Industrial grade standard design, support for long-term  use from  -40  to 85  °C; 

 

SMA interface, easy connection of coaxial  cable or external  antenna. 

1.3 Application

 

 

Home  security alarm  and remote keyless entry; 

 

smart home and industrial sensors; 

 

wireless alarm  security system; 

 

Building  automation solutions; 

 

Wireless industrial grade remote  control; 

 

Intelligent agriculture and oilfield  solutions; 

 

health care products; 

 

Advanced Meter Reading Architecture (AMI); 

 

Automotive industry applications. 

Summary of Contents for E31-433T17D

Page 1: ...E31 433T17D User Manual AX5243 433MHz DIP Wireless Module...

Page 2: ...BROADCASTINGTRANSMISSION 7 5 3 BROADCASTINGADDRESS 7 5 4 MONITOR ADDRESS 7 5 5 RESET 7 5 6 AUX DESCRIPTION 7 5 6 1 Indication of UART output 8 5 6 2 Indication of wireless transmitting 8 5 6 3 Configu...

Page 3: ...ology Co Ltd 2 8 HARDWARE DESIGN 14 9 FAQ 15 9 1 TRANSMISSION DISTANCE IS NOT IDEAL 15 9 2 MODULE IS EASY TO DAMAGE 15 9 3 BIT ERROR RATE ISTOO HIGH 15 10 WELDING OPERATION GUIDANCE 16 11 E31 SERIES 1...

Page 4: ...the probability of reducing the transmission time reducing the probability of interference improving reliability and transmission efficiency E31 433T17D strictly abides by FCC CE CCC and other domest...

Page 5: ...r 5V TTL it may be at risk of burning down Operating temperature 40 85 Industrial design Working frequency MHz 425 450 5 Support ISM band Power consumption Transmit current mA 70 Instant power consump...

Page 6: ...be grounded 3 RXD Input TTLUART inputs connects to external MCU PC TXD output pin Can be configured as open drain or pull up input 4 TXD Output TTLUART outputs connects to external RXD MCU PC input pi...

Page 7: ...9 Chengdu Ebyte Electronic Technology Co Ltd 6 4 Connect to MCU No Description STM8L MCU 1 The UART module is TTLlevel pls connect to theMCU of TTL 2 For some MCU works at 5VDC it may need to add 4 10...

Page 8: ...ule A as 0xFFFF or 0x0000 and the channel as 0x04 When module A is the receiver it can receive the data sent from all modules under channel 0x04 the purpose of monitor is realized 5 5 Reset When the m...

Page 9: ...2 bytes data in the buffer are written to the RFIC Auto sub packaging When AUX 1 the user can input data less than 512 bytes continuously without overflow Buffer not empty when AUX 0 the internal 512...

Page 10: ...mode 0 0 UART and wireless channel are open transparent transmission is on The receiver must be Mode 0 1 1 WOR mode 1 0 UART and wireless channel are open The only difference with Mode 0 Before the da...

Page 11: ...ry flexible and efficient and is designed according to the user s MCU s operation convenience and can reduce the workload of the entire systemas much as possible improve systemefficiency and reduce po...

Page 12: ...ilable Configuration Sleep mode can be used for module parameter setting Use serial port 9600 8N1 to set module working parameters via specific command format Note When entering other modes from the s...

Page 13: ...Detailed description C4 C4 C4 In sleep mode M0 1 M1 1 a command HEX format is issued to the module serial port C4 C4 C4 themodule will generate a reset during the reset process themodule performs self...

Page 14: ...ses and channels When transmitting the module changes its own address and channel and when it is finished it restores theoriginal settings 0 Transparent transmission mode 1 Fixed point transmission mo...

Page 15: ...ten recommended to reserve more than 30 of the margin which is beneficial for long term stable operation of the whole machine The module should be as far away as possible from the power supply transfo...

Page 16: ...attenuation will be very serious Power register setting error air data rate setting is too high the higher the air data rate the closer the distance The low voltage of the power supply is lower than...

Page 17: ...hole IPEX E31 433T17S3 AX5243 433M 17 2 1 2k 70k SMD 16 26 Stamp hole IPEX 12 Antenna Instruction 12 1 Antenna recommendation The antenna plays an important role in the communication process The infe...

Page 18: ...tronic Technology Co Ltd E31 433T17D User Manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 17 TX433 JZ 5 Rubber antenna 433M SMA J 2 52mm Ultra short straight omni antenna 13 Batc...

Page 19: ...ial version huaa 1 20 2018 01 29 Content updated huaa 1 30 2018 10 17 New model added huaa About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you...

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