Table Of Contents - Ebyte E22 T22S Series User Manual

At command 22dbm lora wireless module

Table of Contents

Chengdu Ebyte Electronic Technology Co., Ltd.

Disclaimer and Copyright Notice ...................................................................................................................................4

1. Product Overview .......................................................................................................................................................5

1.1 Product introduction ......................................................................................................................................... 5

1.2 Features .............................................................................................................................................................5

1.3 Application scenarios ....................................................................................................................................... 6

2. Specifications ............................................................................................................................................................. 6

2.1 RF parameters ...................................................................................................................................................6

2.2 Electrical parameters ........................................................................................................................................ 7

2.3 Hardware parameters ........................................................................................................................................7

3. Mechanical dimensions and pin definitions ...............................................................................................................8

3.1 E22-230/400/900T22S mechanical dimensions and pin definitions ............................................................... 8

4. Recommended Connection Diagram ......................................................................................................................... 9

5. Function Description ................................................................................................................................................ 10

5.1 Fixed point to point Transmission ..................................................................................................................10

5.2 Broadcast Transmission ..................................................................................................................................10

5.3 Broadcasting Address .....................................................................................................................................10

5.4 Listening Address ........................................................................................................................................... 11

5.5 Module Reset ..................................................................................................................................................11

5.6 Detailed explanation of AUX .........................................................................................................................11

5.6.1 Indication of Serial port data output ................................................................................................... 11

5.6.2 Indication of Wireless transmission .................................................................................................... 11

5.6.3 The module is being configured ..........................................................................................................12

5.6.4 Notes for AUX .................................................................................................................................... 12

6. Working Mode ..........................................................................................................................................................13

6.1 Precautions for mode switching ..................................................................................................................... 13

6.2 Normal mode（Mode 0） ............................................................................................................................. 14

6.3 WOR mode（Mode 1） ................................................................................................................................ 14

6.4 Configuration mode（Mode 2） ................................................................................................................... 14

6.5 Deep sleep mode（Mode 3） ........................................................................................................................14

7. Register Read and Write Control ............................................................................................................................. 15

7.1 Command format ............................................................................................................................................15

7.2 E22-400/900T22S register description .......................................................................................................... 16

7.3 E22-230T22S register description ................................................................................................................. 19

7.4 Factory default parameters .............................................................................................................................22

8. AT command .............................................................................................................................................................22

8.1 AT command list .............................................................................................................................................22

8.2 AT parameter analysis .................................................................................................................................... 24

8.3 Notes for upgrading firmware via serial port .................................................................................................25

9. Repeater networking mode .......................................................................................................................................25

10. Configuration instructions on computer ................................................................................................................ 26

11. Hardware Design ....................................................................................................................................................27

12. Frequently Asked Questions ...................................................................................................................................28

12.1 Transmission distance is short ......................................................................................................................28

Contents

E22-xxxT22S series product user manual