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Ebyte E22-400T22DC, User Manual


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Chengdu Ebyte Electronic Technology Co.,Ltd.

E22-400T22DC User

Manual

Copyright ©2012–2019

，

Chengdu Ebyte Electronic Technology Co.,Ltd.

1

CONTENTS

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

3

1.1 I

NTRODUCTION

..............................................................................................................................................................

4

1.2 F

EATURES

......................................................................................................................................................................

4

1.3 A

PPLICATION

.................................................................................................................................................................

5

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

5

2.1

L

IMIT PARAMETER

.......................................................................................................................................................

5

2.2

O

PERATING PARAMETER

..............................................................................................................................................

5

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

7

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

8

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

9

5.1 F

IXED TRANSMISSION

....................................................................................................................................................

9

5.2 B

ROADCASTING TRANSMISSION

....................................................................................................................................

9

5.3 B

ROADCASTING ADDRESS

.............................................................................................................................................

9

5.4 M

ONITOR ADDRESS

.....................................................................................................................................................

10

5.5 R

ESET

..........................................................................................................................................................................

10

5.6 AUX

DESCRIPTION

......................................................................................................................................................

10

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

10

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

11

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

11

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

11

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

12

6.1 M

ODE SWITCHING

........................................................................................................................................................

12

6.2 N

ORMAL MODE

（

M

ODE

0

）

......................................................................................................................................

13

6.3 WOR

MODE

（

M

ODE

1

）

...........................................................................................................................................

13

6.4 C

ONFIGURATION MODE

（

M

ODE

2

）

..........................................................................................................................

13

6.5 D

EEP SLEEP MODE

（

M

ODE

3

）

..................................................................................................................................

14

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

14

7.1 C

OMMAND FORMAT

....................................................................................................................................................

14

7.2 R

EGISTER DESCRIPTION

...............................................................................................................................................

15

7.3 F

ACTORY DEFAULT PARAMETER

..................................................................................................................................

17

Summary of Contents for E22-400T22DC

Page 1: ...E22 400T22DC User Manual SX1262 433 470MHz 160mW LoRa Wireless Module...

Page 2: ...FIXED TRANSMISSION 9 5 2 BROADCASTING TRANSMISSION 9 5 3 BROADCASTING ADDRESS 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 wirele...

Page 3: ...PEATER NETWORKING MODE 18 9 CONFIGURATION INSTRUCTIONS ON COMPUTER 19 10 HARDWARE DESIGN 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...

Page 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...

Page 5: ...ers to set their own communication keys which cannot be read greatly improving the confidentiality of user s data Support LBT function monitor the channel environmental noise before sending which can...

Page 6: ...rmance 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 tempe...

Page 7: ...nce 5km 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 Bu...

Page 8: ...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 input c...

Page 9: ...e voltage range 2 3 5 5V DC 7 GND Power supply Ground 8 Fixed hole Fixed hole Connect to GND on the module 9 Fixed hole Fixed hole Connect to GND on the module 10 Fixed hole Fixed hole Connect to GND...

Page 10: ...User Manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 4 9 5 Function description 5 1 Fixed transmission 5 2 Broadcasting transmission 5 3 Broadcasting address For example Set the...

Page 11: ...on 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 A...

Page 12: ...g for the user data or transmitting wireless sub package Note When AUX 1 it does not mean that all the UART data of the module have been transmitted already maybe the last packet of data is still in t...

Page 13: ...gh and low levels to determine the operating mode Two GPIOs of the MCU can be used to control mode switching After changing M1 and M0 If the module is idle after 1ms it can start working according to...

Page 14: ...o the user s MCU s operation convenience and can reduce the workload of the entire system as much as possible improve system efficiency and reduce power consumption 6 2 Normal mode Mode 0 Type M0 0 M1...

Page 15: ...th parameters Response C1 starting address length parameters E g 1 Channel is 0x09 command starting address length parameter Send C0 05 01 09 Return C1 05 01 09 E g 2 Configure module address 0x1234 n...

Page 16: ...2H Read Write NETID NETID default 0 Network address used to distinguish the network When communicating with each other they should be set to the same 03H Read Write REG0 7 6 5 UART Serial port rate bp...

Page 17: ...d length read valid value E g send C0 C1 C2 C3 00 01 Return C1 00 01 RSSI Address can only start from 00 0 Disable default 1 Enable 4 3 2 Reserve 1 0 Transmitting power Power and current are nonlinear...

Page 18: ...hich can save a lot of power 1 WOR transmitter The module receiving and transmitting functions are turned on and a wake up code is added when transmitting data 2 1 0 WOR period Valid only for mode 1 P...

Page 19: ...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 m...

Page 20: ...on computer The following figure shows the E22 400T22DC configuration host computer display interface users can switch to the command mode through M0M1 and quickly configure and read the parameters o...

Page 21: ...tly When designing the power supply circuit for the module it is often recommended to reserve more than 30 of the margin so the whole machine is beneficial for long term stable operation The module sh...

Page 22: ...d Sea water has great ability in absorbing wireless radio wave so performance will be poor when testing near the sea The signal will be affected when the antenna is near metal object or put in a metal...

Page 23: ...Size mm Interface E22 230T22S SX1262 230M 22 5 SMD 16 26 TTL E22 230T30S SX1262 230M 30 10 SMD 20 40 5 TTL E22 400T22S SX1268 433 470M 22 5 SMD 16 26 TTL E22 400T22DC SX1268 433 470M 22 5 DIP 21 36 TT...

Page 24: ...nna 433M SMA J 3 0 210 Flexible omnidirectional TX433 XPL 100 Sucker antenna 433M SMA J 3 5 185 100 Small sucker antenna cost effective TX433 XP 200 Sucker antenna 433M SMA J 4 0 190 200 Medium sucker...

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