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CONTENTS

1. OVERVIEW..................................................................................................................................

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2. SPECIFICATION AND PARAMETER.....................................................................................

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PERATING PARAMETER

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3 SIZE AND PIN DEFINITION.........................................................................................................

4. CONNECT TO MCU......................................................................................................................

5 FUNCTION DESCRIPTION..........................................................................................................

IXED TRANSMISSION

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ROADCASTING TRANSMISSION

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ROADCASTING ADDRESS

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5.6.1 Indication of UART output....................................................................................................................................

5.6.2 Indication of wireless transmitting......................................................................................................................

5.6.3 Configuration procedure of module....................................................................................................................

5.6.4 Notes for AUX......................................................................................................................................................

6 OPERATING MODE.....................................................................................................................

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ONFIGURATION MODE

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7 REGISTER READ AND WRITE CONTROL............................................................................

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EGISTER DESCRIPTION

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ACTORY DEFAULT PARAMETER

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8 REPEATER NETWORKING MODE..........................................................................................

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Содержание E22-900T30D

Страница 1: ...E22 900T30D User Manual 868M 915M 30dBm DIP new LoRa Wireless Module ...

Страница 2: ...S 9 5 4 MONITOR ADDRESS 9 5 5 RESET 9 5 6 AUX DESCRIPTION 9 5 6 1 Indication of UART output 9 5 6 2 Indication of wireless transmitting 10 5 6 3 Configuration procedure of module 11 5 6 4 Notes for AUX 11 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 CONFIGURATION MODE MODE 2 13 6 5 DEEP SLEEP MODE MODE 3 13 7 REGISTER READ AND WRITE CONTROL 13 7 1 ...

Страница 3: ...SIGN 19 11 FAQ 20 11 1 COMMUNICATION RANGE IS TOO SHORT 20 11 2 MODULE IS EASY TO DAMAGE 20 11 3 BER BIT ERROR RATE IS HIGH 20 12 PRODUCTION GUIDANCE 21 12 1 REFLOW SOLDERING TEMPERATURE 21 12 2 REFLOW SOLDERING CURVE 21 13 E22 SERIES 22 14 ANTENNA RECOMMENDATION 22 15 PACKAGE FOR BULK ORDER 23 REVISION HISTORY 23 ABOUT US 23 ...

Страница 4: ...duction use modification or disclosure to third parties of this document or any part thereof without the express permission of EBYTE is strictly prohibited The information contained herein is provided as is and EBYTE assumes no liability for the use of the information No warranty either express or implied is given including but not limited with respect to the accuracy correctness reliability and f...

Страница 5: ...be read greatly improving the user data privacy Supports LBT function before sending channel environmental noise monitoring can greatly increase the success rate of communication module in harsh environment RSSI signal strength indicator function can be used to assess the signal quality improve the communication network and distance Wireless parameters configuration sent via wireless instruction p...

Страница 6: ...ver 5 5V will cause permanent damage to module Blocking power dBm 10 Chances of burn is slim when modules are used in short distance Operating temperature 40 85 2 2 Operating parameter Main parameter Performance Remark Min Typ Max Operating voltage V 3 3 5 0 5 5 5 0 V ensures output power Communication level V 3 3 For 5V TTL It is recommended to add level conversion Operating temperature 40 85 Ind...

Страница 7: ...reference 10km Test condition clear and open area antenna gain 5dBi antenna height 2 5m air data rate 2 4kbps TX length 240 Byte Can be configured via command as 32 64 128 240 bytes per packet to transmit Buffer 1000 Byte Modulation LoRa Communication interface UART TTL level Package DIP Connector 1 7 2 54mm Size 24 43 mm Antenna SMA K 50 ohm impedance 3 Size and pin definition ...

Страница 8: ...ut TTL UART 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 configu...

Страница 9: ... 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 8 No Description STM8L MCU 1 The UART module is TTL level 2 For some MCU works at 5VDC it may need to add 4 10K pull up resistor for the TXD AUX pin 5 Function description 5 1 Fixed transmission 5 2 Broadcasting transmission ...

Страница 10: ... 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 edge as th...

Страница 11: ... can input data less than 1000 bytes continuously without overflow Buffer not empty when AUX 0 the internal 1000 bytes data in the buffer have not been written to the RFIC completely If the user starts to transmit data at this circumstance it may cause overtime when the module is waiting for the user data or transmitting wireless sub package When AUX 1 it does not mean that all the UART data of th...

Страница 12: ... to new operating mode it will not work in the new mode immediately until AUX rising edge lasts for 2ms If AUX stays on the high level the operating mode switch can be effected immediately 4 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 6 Operating mode There are four op...

Страница 13: ...tering sleep mode This feature can be used for fast sleep which saves power for example the transmitter module works in mode 0 the user transmits the serial port data 12345 and then does not have to wait for the AUX pin to be idle high level and can directly switch to sleep mode And the user s main MCU immediately sleeps the module will automatically transmit the user data through the wireless and...

Страница 14: ...ep mode Mode 3 Type M0 1 M1 1 Transmitting Unable to transmit wireless data Receiving Unable to receive wireless data Note When from the sleep mode to other modes the module will reconfigure the parameters During the configuration process AUX will remain low After configuration it outputs high level we suggest that user test rising edge AUX 7 Register read and write control 7 1 Command format In c...

Страница 15: ...re module address 0x1234 network address 0x00 serial port 9600 8N1 and air data rate 1 2K Send C2 00 04 12 34 00 61 Return C1 00 04 12 34 00 61 5 Wireless configuration Command CF CF normal command Respond CF CF normal respond E g 1 Channel is 0x09 Command head command starting address length parameter Send CF CF C0 05 01 09 Returen CF CF C1 05 01 09 E g 2 Configure module address 0x1234 network a...

Страница 16: ...ket setting 00 240 bytes default 01 128 bytes 10 64 bytes 11 32 bytes 5 RSSI Ambient noise enable 1 Enable 0 Disable default 4 3 2 Reserve 1 0 Transmitting power 00 30dbm default 01 27dbm 10 24dbm 11 21dbm When the data is smaller than the sub packet length the serial output of the receiving end is an uninterrupted continuous output When the data is larger than the sub packet length the receiving ...

Страница 17: ...ule itself the module will forward it once In order to prevent data return back it is recommended to use it in conjunction with the fixed point mode That is the target address is different from the source address When enabled wireless data will be monitored before it is transmitted which can avoid interference to a certain extent but may cause data delay Valid only for mode 1 After the WOR receive...

Страница 18: ...ng the reset process the module resets the user parameters during which the AUX outputs low level Repeater networking rules 1 Forwarding rules the repeater can forward data in both directions between two NETIDs 2 In repeater mode ADDH ADDL is no longer used as the module address and it is used as a NETID forwarding pairing flag Figure 1 Primary repeater Node 1 NETID is 08 Node 2 NETID is 33 Primar...

Страница 19: ...g figure shows the E22 900T30D configuration host computer display interface the user can switch to the command mode through M0M1 and quickly configure and read the parameters on computer In the configuration on computer the module address frequency channel network ID and key are all in decimal mode The range of values of each parameter is Network address 0 65535 Frequency channel 0 80 ...

Страница 20: ...ce High frequency digital routing high frequency analog routing and power routing must be avoided under the module If it is necessary to pass through the module assume that the module is soldered to the Top Layer and the copper is spread on the Top Layer of the module contact part well grounded it must be close to the digital part of the module and routed in the Bottom Layer Assuming the module is...

Страница 21: ...mperature is lower than 2 5V the lower the voltage the lower the transmitting power Due to antenna quality or poor matching between antenna and module 11 2 Module is easy to damage Please check the power supply source ensure it is in right range voltage higher than max value will damage the module Please check the stability of power source the voltage cannot fluctuate too much Please make sure ant...

Страница 22: ...eheat temperature max Tsmax Mx preheating temp 150 200 Preheat Time Tsmin to Tsmax ts Preheating time 60 120 sec 60 120 sec Average ramp up rate Tsmax to Tp Average ramp up rate 3 second max 3 second max Liquidous Temperature TL Liquid phase temp 183 217 Time tL Maintained Above TL Time below liquid phase line 60 90 sec 30 90 sec Peak temperature Tp Peak temp 220 235 230 250 Aveage ramp down rate ...

Страница 23: ...2 868M 915M 30 10 SMD 40 5 25 UART 14 Antenna recommendation The antenna is an important role in the communication process A good antenna can largely improve the communication system Therefore we recommend some antennas for wireless modules with excellent performance and reasonable price Model No Type Frequency Hz Interface Gain dBi Height Cable Function feature TX868 XPL 100 Sucker antenna 868M S...

Страница 24: ... 2020 08 28 Initial version 1 1 2020 11 27 Error correction Linson 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 611...

Страница 25: ...Chengdu Ebyte Electronic Technology Co Ltd E22 900T30D User Manual Copyright 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 24 ...

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