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Chengdu Ebyte Electronic Technology Co.,Ltd.                                                                                                                                      E31-433T17S User Manual 

 

Copyright ©2012–2019

Chengdu Ebyte Electronic Technology Co.,Ltd.

                                                                                                                                      

12 

 

7 Command  format 

In sleep mode  (mode  3:  M0  =  1,  M1 =  1),  the list  of supported commands are  as follows  (only 9600,  8N1  format  is 

supported when)

 

No. 

Command  format 

Description 

C0+Working parameters 

The C0+5 byte working parameter is sent in hexadecimal  format, 6 bytes in all, and must 
be sent continuously (power-down save) 

C1+C1+C1 

Three C1s are sent in hexadecimal  format. The module returns the saved parameters and 
must be sent continuously. 

C2+Working parameters 

Send C2+5 byte working parameters in hexadecimal  format, 6 bytes in all, must be sent 
continuously (power off without saving) 

C3+C3+C3 

Three C3s are sent in hexadecimal  format. The module returns version information and 
must be sent continuously. 

C4+C4+C4 

Three C4s are sent in hexadecimal  format, and the module will generate a reset and must 
be sent continuously. 

7.1 Factory default parameter 

Model 

Factory default parameter  value

C0  00  00  18 50  44 

Module Model 

Frequency 

Address 

Channel 

Air data rate 

Baud Rate 

Serial  port format 

Transmitting 

power 

E31-433T17S 

433MHz 

0x0000 

0x50 

1.2kbps 

9600 

8N1 

50mW 

 

7.2 Working  parameter reading 

Instruction format 

Detailed  description 

C1+C1+C1 

In sleep mode (M0=1, M1=1), a command (HEX format) is issued to the module  serial port: C1 
C1 C1, the module will return the current configuration  parameters, such as: C0 00 00 1A 17 44. 

7.3 Version number  reading 

Instruction format 

Detailed  description 

C3+C3+C3 

In sleep mode (M0=1, M1=1), a command  (HEX format) is issued to the module serial port: C3 
C3 C3, the module  will  return the current configuration  parameters, such as: C3  32 xx  yy;the 
second byte represents the frequency , if it’s 32,it is the applicable frequency of 433MHz, if it’s 

38, it is the applicable frequency of 470MHz, if it’s 45, it is the applicable frequency of 868MHz; 
If it’s 44, it is the applicable frequency of 915MHz; if it’s 46, it is the applicable frequency of 
170MHz; xx represents the version number, yy represents other features of module. 

7.4 Reset instruction 

Instruction format 

Detailed  description 

Содержание E31-433T17S

Страница 1: ...E31 433T17S User Manual AX5243 433MHz SMD Wireless Module...

Страница 2: ...ADDRESS 8 5 5 RESET 8 5 6 AUX DESCRIPTION 8 5 6 1 Indication of UART output 8 5 6 2 Indication of wireless transmitting 8 5 6 3 Configuration procedure of module 9 5 6 4 Notes for AUX 9 6 OPERATING M...

Страница 3: ...ht 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 2 10 WELDING OPERATION GUIDANCE 16 10 1 REFLOW TEMPERATURE 16 10 2 REFLOW PROFILE 17 11 E31 SERIES 17 12 ANTENNA INSTRUCTION 18 12 1 ANTENNA REC...

Страница 4: ...probability of reducing the transmission time reducing the probability of interference improving reliability and transmission efficiency E31 433T17S strictly abides by FCC CE CCC and other domestic an...

Страница 5: ...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 consumption...

Страница 6: ...RT 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 pin Can be configured as open d...

Страница 7: ...ight 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 6 11 GND Input Ground 4 Connect to MCU No Description STM8L MCU 1 The UART module is TTLlevel pls connect to theMCU of TTL 2 For some MCU work...

Страница 8: ...r Manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 7 5 Function description 5 1 Fixed transmission 5 2 Broadcasting transmission 5 3 Broadcasting address For example Set the addre...

Страница 9: ...arameters During the process the AUX remains low level After the process completed the AUX outputs high level and starts to work as per the operating mode combined by M1 and M0 Therefore users need to...

Страница 10: ...5 6 4 Notes for AUX For function 1 function 2 mentioned above the priority should be given to the one with low level output which means if it meets each of any low level output condition AUX outputs...

Страница 11: ...delay switching For example in mode 0 or mode 1 users continuously inputs a large amount of data and simultaneously performs mode switching At this time the switching mode operation is invalid the mo...

Страница 12: ...each data packet The length of wake up code depends on the wake up time set by users the purpose of wake up code is to wake up the module with Mode2 So the transmitting data in Mode1 can be received...

Страница 13: ...y default parameter Model Factory default parameter value C0 00 00 18 50 44 ModuleModel Frequency Address Channel Air data rate Baud Rate Serial port format Transmitting power E31 433T17S 433MHz 0x000...

Страница 14: ...e bps The baud rate of both parties can be different The serial port baud rate has nothing to do with the wireless transmission parameters and does not affect the wireless transmission and reception c...

Страница 15: ...istening interval wireless wake up and can only receive data from the module working in mode 1 0 0 0 250ms default 0 0 1 500ms 0 1 0 750ms 0 1 1 1000ms 1 0 0 1250ms 1 0 1 1500ms 1 1 0 1750ms 1 1 1 200...

Страница 16: ...r is well grounded and must be close to the digital part of the module and routed in the Bottom Layer Assuming that the module is soldered or placed in the Top Layer it is also wrong to randomly route...

Страница 17: ...ure that it s within the recommended power supply or the module will be permanently damaged if it exceeds the maximum value Check the stability of the power supply and the voltage cannot be fluctuated...

Страница 18: ...0 Average ramp down rate Tp to Tsmax Average decline rate 6 second max 6 second max Time 25 to peak temperature Time from 25 to peak temperature 6 minutes max 8 minutes max 10 2 Reflow profile 11 E31...

Страница 19: ...ireless modules Product Model Type Frequenc y Hz Interfac e Gain dBi Height Cable Features TX433 NP 4310 Flexible PCB antenna 433M SMA J 2 43 8 9 5mm Built in flexible FPC soft antenna TX433 JW 5 Rubb...

Страница 20: ...Chengdu Ebyte Electronic Technology Co Ltd E31 433T17S User Manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 19 13 Batch packaging method...

Страница 21: ...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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