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Chengdu Ebyte Electronic Technology Co.,Ltd.

E31-433T27D User Manual

Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.

6

4. Connect to MCU

No.

Description

（

STM8L MCU

）

1

The UART module is TTL level

，

pls connect to the MCU of TTL..

2

For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.

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Содержание E31-433T27D

Страница 1: ...Chengdu Ebyte Electronic Technology Co Ltd E31 433T27D User Manual E31 433T27D User Manual AX5243 433MHz 500mW DIP Wireless Module ...

Страница 2: ...ut 8 5 6 2 Indication of wireless transmitting 9 5 6 3 Configuration procedure of module 9 5 6 4 Notes for AUX 9 6 Operating mode 11 6 1 Mode switching 11 6 2 Normal mode Mode 0 12 6 3 WOR mode Mode 1 12 6 4 Power saving mode Mode 2 12 6 5 Sleep mode Mode 3 13 7 Command format 14 7 1 Factory default parameter 14 7 2 Working parameter reading 14 7 3 Version number reading 14 7 4 Reset instruction 1...

Страница 3: ...as the probability of reducing the transmission time reducing the probability of interference improving reliability and transmission efficiency E31 433T27D strictly abides by FCC CE and other domestic and foreign design specifications meets all RF related certifications and meets export requirements 1 2 Features The real testing distance reaches 4km The max transmitting power is 500mW multi level ...

Страница 4: ...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 380 Instant power consumption Receive current mA 13 Sleep current μA 5 Software is shut down Max transmit power dBm 26 6 27 0 28 4 Receiving sensitivity dBm 125 126 127 Air data rate is 1 3kbps Air data rate bps 1 2k 5k 70k ...

Страница 5: ...Chengdu Ebyte Electronic Technology Co Ltd E31 433T27D User Manual Copyright 2012 2020 Chengdu Ebyte Electronic Technology Co Ltd 4 3 Size and pin definition ...

Страница 6: ...T inputs connects to external MCU PC TXD output pin Can be configured as open drain or pull up input 4 TXD Output TTL UART outputs connects to external RXD MCU PC input pin Can be configured as open drain or push pull output 5 AUX Output To indicate module s working status wakes up the external MCU During the procedure of self check initialization the pin outputs low level Can be configured as pus...

Страница 7: ...nual Copyright 2012 2020 Chengdu Ebyte Electronic Technology Co Ltd 6 4 Connect to MCU No Description STM8L MCU 1 The UART module is TTL level pls connect to the MCU of TTL 2 For some MCU works at 5VDC it may need to add 4 10K pull up resistor for the TXD AUX pin ...

Страница 8: ...ngdu Ebyte Electronic Technology Co Ltd E31 433T27D User Manual Copyright 2012 2020 Chengdu Ebyte Electronic Technology Co Ltd 7 5 Function description 5 1 Fixed transmission 5 2 Broadcasting transmission ...

Страница 9: ...he purpose of monitor is realized 5 5 Reset When the module is powered AUX outputs low level immediately conducts hardware self check and sets the operating mode based on user s parameters 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 wait the AUX rising ...

Страница 10: ...ean that all the UART data of the module have been transmitted already perhaps the last packet of data is still in transmission 5 6 3 Configuration procedure of module Only happened when Reset and exit sleep mode 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 ...

Страница 11: ...D User Manual Copyright 2012 2020 Chengdu Ebyte Electronic Technology Co Ltd 10 When the user switches to other operating modes from mode 3 sleep mode or it s still in reset process the module will reset user parameters during which AUX outputs low level ...

Страница 12: ...hen AUX output is 1 otherwise it will 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 module will process all the user data before performing the new mode detection Therefore the general recommendation is to detect the output state of the AUX pin and ...

Страница 13: ...r all wireless data is transmitted via serial port the AUX outputs high level 6 3 WOR mode Mode 1 Type When M0 1 M1 0 the module works on Mode 1 Transmitting The condition of module starting data packet transmission and the AUX function equal to Mode 0 The only difference is that module will add wake up code automatically before each data packet The length of wake up code depends on the wake up ti...

Страница 14: ...ailable Receiving Receiving the wireless data is unavailable 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 sleep mode the module will reconfigure the parameters During the configuration process AUX keeps low level after that AUX outputs high level so it ...

Страница 15: ... 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 433T27D 433MHz 0x0000 0x50 1 2kbps 9600 8N1 500mW 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...

Страница 16: ...rial port mode of the two communication parties can be different 0 0 8N1 default 0 1 8O1 1 0 8 E1 1 1 8N1 equals to 00 5 4 3 TTL Serial port rate 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 characteristics 0 0 0 Serial port baud rate 1200 0 0 1 Se...

Страница 17: ...nsmit the call code for the corresponding time The receiver works in mode 2 which refers to the receiver s listening 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 2000ms 2 FEC switch After the FEC is turned off the actual data transmission rate is increased ...

Страница 18: ...per 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 the Bottom Layer or other layers which will affect the spurs and receiving sensitivity of the module in varying degrees Assume that there are devices with large electromagnetic interference around ...

Страница 19: ...e voltage the smaller the power The matching degree of antenna and module is poor or the quality of the antenna itself 9 2 Module is easy to damage Please check the power supply to ensure 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 frequently Plea...

Страница 20: ...yte Electronic Technology Co Ltd 19 10 Welding operation guidance This type is full sized module when the welder welds the module he must be welding according to the anti static regulation This product is allergic to static randomly welding the module will have the chance of damaging it permanently ...

Страница 21: ...M 33 8 1 2k 70k DIP 37 60 SMA K E31 230T27D AX524 3 230M 27 5 1 2k 70k DIP 24 43 SMA K E31 230T17D AX524 3 230M 17 2 1 2k 70k DIP 21 36 SMA K E31 433T33D AX524 3 433M 33 8 1 2k 70k DIP 37 60 SMA K E31 433T30D AX524 3 433M 30 6 1 2k 70k DIP 24 43 SMA K E31 433T27D AX524 3 433M 27 4 1 2k 70k DIP 24 43 SMA K E31 433T17D AX524 3 433M 17 2 1 1 2k 70k DIP 21 36 SMA K E31 433T17S AX524 3 433M 17 2 1 2k 7...

Страница 22: ...A J 2 43 8 9 5mm Built in flexible FPC soft antenna TX433 JW 5 Rubber antenna 433M SMA J 2 50mm Flexible omni antenna TX433 JWG 7 Rubber antenna 433M SMA J 2 5 75mm Flexible omni antenna TX433 JK 20 Rubber antenna 433M SMA J 3 210mm Flexible omni antenna TX433 JK 11 Rubber antenna 433M SMA J 2 5 110mm Flexible omni antenna TX433 XP 200 Sucker antenna 433M SMA J 4 19cm 200cm Sucker antenna high gai...

Страница 23: ...Chengdu Ebyte Electronic Technology Co Ltd E31 433T27D User Manual Copyright 2012 2020 Chengdu Ebyte Electronic Technology Co Ltd 22 13 Batch packaging method ...

Страница 24: ...1 00 2017 11 17 Initial version Li About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyte products Please contact us with any questions or suggestions info cdebyte com Official hotline 028 61399028 Web www ebyte com Address Building B5 Mould Industrial Park 199 Xiqu Ave High tech Zone Chengdu 611731 Sichuan China ...

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