Ebyte E22-400T22DC Bedienungsanleitung

E22-400T22DC User Manual

SX1262 433/470MHz 160mW LoRa Wireless Module

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

CONTENTS

1. OVERVIEW..................................................................................................................................... 3

1.1 INTRODUCTION.............................................................................................................................................................. 4

1.2 FEATURES......................................................................................................................................................................4

1.3 APPLICATION................................................................................................................................................................. 5

2. SPECIFICATION AND PARAMETER........................................................................................5

2.1 LIMIT PARAMETER....................................................................................................................................................... 5

2.2 OPERATING PARAMETER..............................................................................................................................................5

3. SIZE AND PIN DEFINITION........................................................................................................7

4. CONNECT TO MCU.......................................................................................................................8

5. FUNCTION DESCRIPTION..........................................................................................................9

5.1 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...................................................................................................................................

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

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

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

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）..........................................................................................................................13

6.5 DEEP SLEEP MODE（MODE 3）.................................................................................................................................. 14

7. REGISTER READ AND WRITE CONTROL............................................................................14

7.1 COMMAND FORMAT.................................................................................................................................................... 14

7.2 REGISTER DESCRIPTION............................................................................................................................................... 15

7.3 FACTORY DEFAULT PARAMETER..................................................................................................................................17

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

8. REPEATER 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)IS HIGH................................................................................................................................21

12. WELDING GUIDANCE............................................................................................................. 22

13. E22 SERIES..................................................................................................................................22

14. ANTENNA GUIDANCE..............................................................................................................22

14.1 ANTENNA RECOMMENDATION................................................................................................................................... 22

REVISION HISTORY....................................................................................................................... 23

ABOUT US......................................................................................................................................... 23

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

Disclaimer

EBYTE reserves all rights to this document and the information contained herein.

Products, names, logos and designs described herein may in whole or in part be

subject to intellectual property rights. Reproduction, use, modification or disclosure to

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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

fitness for a particular purpose of the information. This document may be revised by

EBYTE at any time. For most recent documents, visit www.ebyte.com.

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

1. Overview

1.1 Introduction

E22-400T22DC is a wireless serial port module (UART)

based on SEMTECH's SX1262 RF chip. It has multiple

transmission modes, working in the 410.125MHz~493.125MHz,

frequency (default 433.125MHz), LoRa spread spectrum

technology, TTL level output, compatible with 3.3V and 5V IO

port voltage.

E22-400T22DC uses a new generation of LoRa spread

spectrum technology. Compared with the traditional SX1278 solution, the SX1262 solution has a longer transmission

distance, faster speed, lower power consumption and smaller size. It Supports wake-up over air, wireless configuration,

carrier monitoring, automatic relay, communication key and other functions, supports sub-package length setting, and

can provide custom development services.

1.2 Features

Develop a new LoRa spread spectrum modulation technology based on SX1262,which will bring longer

communication distance and stronger anti-interference ability;

Support automatic relay networking, multi-level relay is suitable for ultra-long distance communication, multiple

networks running in the same area are running simultaneously;

Support users 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 greatly improve the

communication success rate of the module in harsh environments;

Support RSSI signal strength indication function for evaluating signal quality, improving communication network,

ranging;

Support wireless parameter configuration, send command data packets wirelessly, remotely configure or read

wireless module parameters;

Support wake-up over air, that is, ultra-low power consumption function, suitable for battery-powered applications;

Supports fixed-point transmission, broadcast transmission, and channel monitoring;

Supports deep hibernation, and the whole machine consumes about 2uA in this mode;

Support the global license-free ISM 433MHz band and 470MHz meter reading frequency band;

Under ideal conditions, the communication distance can reach 5km;

The parameters are saved when power off, and the module will work according to the set parameters after power

on again;

Efficient watchdog design, once an exception occurs, the module will automatically restart and continue to work

according to the previous parameter settings;

Support data transmission rate of 0.3k ～62.5kbps;

Support 2.3 ~ 5.5V power supply, power supply over 5V can ensure the best performance;

Industrial grade standard design, support long-term from at -40 ～+ 85 ℃;

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

The size and shape are consistent with our E32 series modules, which can be directly replaced to improve product

performance and distance.

1.3 Application

Home security alarm and remote keyless entry；

Smart home and industrial sensors；

Wireless alarm security system；

Building automation solutions；

Wireless industrial-grade remote control；

Health care products；

Advanced Meter Reading Architecture(AMI)；

Automotive industry applications.

2. Specification and parameter

2.1 Limit parameter

Main parameter

Performance

Remark

Min.

Max.

Power supply（V）

5.5

Voltage over 5.5V will cause permanent damage to

module

Blocking power（dBm）

Chances of burn is slim when modules are used in

short distance

Operating temperature（℃）

-40

+85

Industrial grade

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 to add level conversion

Operating temperature（℃）

-40

Industrial design

Operating frequency（MHz）

410.125

433.125

493.125

Support ISM band

Power

consu

mption

TX current（mA）

110

Instant power consumption

RX current（mA）

Sleep current（μA）

Software is shut down

Max Tx power（dBm）

21.5

22.0

22.5

Receiving sensitivity（dBm）

-146

-147

-148

Air data rate is 0.3 kbps

Air data rate（bps）

0.3k

2.4k

62.5k

Controlled via user’s programming

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

Main parameter

Description

Remark

Distance for reference

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

Buffer

1000 Byte

Modulation

LoRa

New generation LoRa modulation technology

Communication interface

UART

TTL level

Package

DIP

Connector

1*7*2.54mm

Size

21*36 mm

Antenna

SMA

50 ohm impedance

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

3. Size and pin definition

No.

Name

Direction

Function

Input

（weak pull-up）

Work with M1 to decide 4 working modes of module (not suspended, if not

used, could be grounded).

Input

（weak pull-up）

Work with M0 to decide 4 working modes of module (not suspended, if not

used, could be grounded).

RXD

Input

TTL UART input, connects to external TXD output pin.

TXD

Output

TTL UART output, connects to external RXD input pin.

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.

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

(suspending is allowed).

VCC

Power supply

Module power supply positive reference, voltage range: 2.3 ～5.5V DC

GND

Power supply

Ground

Fixed hole

Fixed hole（Connect to GND on the module）

Fixed hole

Fixed hole（Connect to GND on the module）

Fixed hole

Fixed hole（Connect to GND on the module）

4. Connect to MCU

No.

Description（STM8L MCU）

The UART module is TTL level, please connect with TTL level MCU.

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

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User

Manual

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, and the channel as 0x04;

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