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Chengdu Ebyte Electronic Technology Co., Ltd.

E22-900T22D User Manual

Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.

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Содержание E22 Series

Страница 1: ...E22 900T22D User Manual 868M 915M 22dBm DIP New LoRa Wireless Module ...

Страница 2: ...9 5 4 MONITOR ADDRESS 10 5 5 RESET 10 5 6 AUX DESCRIPTION 10 5 6 1 Indication of UART output 10 5 6 2 Indication of wireless transmitting 10 5 6 3 Configuration procedure of module 12 5 6 4 Notes for AUX 12 6 OPERATING MODE 12 6 1 MODE SWITCHING 12 6 2 NORMAL MODE MODE 0 13 6 3 WOR MODE MODE 1 13 6 4 CONFIGURATION MODE MODE 2 14 6 5 DEEP SLEEP MODE MODE 3 14 7 REGISTER READ AND WRITE CONTROL 14 7 ...

Страница 3: ...SIGN 20 11 FAQ 21 11 1 COMMUNICATION RANGE IS TOO SHORT 21 11 2 MODULE IS EASY TO DAMAGE 21 11 3 BER BIT ERROR RATE IS HIGH 21 12 PRODUCTION GUIDANCE 22 12 1 REFLOW SOLDERING TEMPERATURE 22 12 2 REFLOW SOLDERING CURVE 22 13 E22 SERIES 23 14 ANTENNA RECOMMENDATION 23 15 PACKAGE FOR BULK ORDER 24 REVISION HISTORY 24 ABOUT US 24 ...

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: ...ame time The communication allows users to set key that cannot 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 Wi...

Страница 6: ...rformance Remark Min Max Power supply V 0 5 5 Voltage over 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 2 3 5 0 5 5 5 0 V ensures output power Communication level V 3 3 For 5V TTL It is recommended ...

Страница 7: ...Distance for reference 5000m 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 21 36 mm Antenna SMA K 50 ohm impedance ...

Страница 8: ... Work with M1 to decide 4 working modes of module not suspended if not used could be grounded 2 M1 Input weak pull up Work with M0 to decide 4 working modes of module not suspended if not used could be grounded 3 RXD Input 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 p...

Страница 9: ...al MCU During the procedure of self check initialization the pin outputs low level Can be configured as push pull output suspending is allowed 6 VCC Input Power supply 2 3 5 5V DC 7 GND Input Ground 8 Fixed hole Connect to GND 9 Fixed hole Connect to GND 10 Fixed hole Connect to GND 4 Connect to MCU No Description STM8L MCU 1 The UART module is TTL level 2 For some MCU works at 5VDC it may need to...

Страница 10: ...ogy Co Ltd 9 5 Function description 5 1 Fixed transmission 5 2 Broadcasting transmission 5 3 Broadcasting address For example Set the address of module A as 0xFFFF or 0x0000 and the channel as 0x04 When module is the transmitter transparent transmission all modules under channel 0x04 will receive the data the purpose of ...

Страница 11: ...ription AUX Pin can be used as indication for wireless send receive buffer and self check It can indicate whether there are data that are not sent yet via wireless way or whether all wireless data has been sent through UART or whether the module is still in the process of self check initialization 5 6 1 Indication of UART output To wake up external MCU 5 6 2 Indication of wireless transmitting Buf...

Страница 12: ...Chengdu Ebyte Electronic Technology Co Ltd E22 900T22D User Manual Copyright 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 11 ...

Страница 13: ... 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 14: ...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 15: ...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 16: ...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 17: ...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 22dbm default 01 17dbm 10 13dbm 11 10dbm 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 18: ...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 19: ...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 20: ...g figure shows the E22 900T22D 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 21: ...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 22: ...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 23: ...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 24: ...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 25: ...020 09 01 Initial version Ken 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 6...

Страница 26: ...Chengdu Ebyte Electronic Technology Co Ltd E22 900T22D User Manual Copyright 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 25 ...

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