Ebyte E22-900T30DC Bedienungsanleitung

E22-900T30DC User Manual

SX1262 868M/915M 30dBm DIP new LoRa Wireless Module

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.........................................................................................................6

4. CONNECT TO MCU...................................................................................................................... 7

5 FUNCTION DESCRIPTION.......................................................................................................... 8

5.1 FIXED TRANSMISSION....................................................................................................................................................8

5.2 BROADCASTING TRANSMISSION....................................................................................................................................8

5.3 BROADCASTING ADDRESS............................................................................................................................................. 9

5.4 MONITOR ADDRESS.......................................................................................................................................................9

5.5 RESET............................................................................................................................................................................9

5.6 AUX DESCRIPTION........................................................................................................................................................9

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..................................................................................................................... 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 COMMAND FORMAT.....................................................................................................................................................13

7.2 REGISTER DESCRIPTION.............................................................................................................................................. 14

7.3 FACTORY DEFAULT PARAMETER...................................................................................................................................16

8 REPEATER NETWORKING MODE..........................................................................................17

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30DC User Manual

9 CONFIGURATION INSTRUCTIONS ON COMPUTER......................................................... 18

10 HARDWARE DESIGN................................................................................................................ 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

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30DC 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. E22-900T30DC User Manual

1. Overview

1.1 Introduction

E22-900T30DC is a wireless module (UART) based on SX1262

with multiple transmission modes, working in the

850.125MHz~930.125MHz, (default 868.125MHz). It features LoRa

spread spectrum technology, TTL level output, compatible with 3.3V and

5V IO port voltage.

E22-900T30DC adopts a new generation of LoRa spread spectrum

technology. Compared with the traditional SX1278 solution, it has a longer transmission distance, faster speed, lower

power consumption, and smaller size; it supports functions such as air wake-up, wireless configuration, carrier

monitoring, automatic relay. communication keys and sub-package length setting. Ebyte provides customized

development services on it.

1.2 Features

SX1262 LoRa chip brings further communication distance and stronger anti-interference ability;

Supports automatic relay network, multilevel relay used in long distance communication, the same area to run

multiple network running at the same 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;

Wireless parameters configuration, sent via wireless instruction packet, or read a wireless remote configuration

module parameters;

Air wake up, that is, ultra-low power consumption function, suitable for a battery-powered application solutions;

Supports fixed transmission, radio transmission, channel to monitor;

Deep sleep mode enables 2 uA power consumption;

Global free license ISM 868/915 MHZ band;

Under ideal conditions, the communication distance can be up to 10 km;

Supports parameter electricity saving, electricity again after the module will work according to set good parameters;

Effective watchdog design, once an exception occurs, the module will be in automatic restart, and can continue to

work on previous parameter;

0.3 k ~ 62.5 kbps air data rate;

3.3 V to 5.5 V power supply, over 5V power supply can ensure the best performance;

Industry-standard design, support - 40 ~ + 85 ℃ under long time use;

Size and shape are consistent with E32 series module, which can be directly replaced to improve performance and

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30DC User Manual

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

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

Industrial design

Operating frequency（MHz）

850.125

868.125

930.125

Support ISM band

Power

consumpti

TX current(mA)

650

Instant power consumption

RX current (mA)

Sleep current（μA）

Software is shut down

Max Tx power（dBm）

29.5

30.0

30.5

Receiving sensitivity（dBm）

-146

-147

-148

Air data rate 2.4kbps

Air data rate（bps）

0.3k

2.4k

62.5k

To control via user’s program

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30DC User Manual

Main parameter

Description

Remark

Distance for 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

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30DC User Manual

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 inputs, connects to external (MCU, PC) TXD output pin. Can be

configured as open-drain or pull-up input.

TXD

Output

TTL UART outputs, connects to external RXD (MCU, PC) input pin. Can be

configured as open-drain or push-pull output

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

configured as push-pull output (suspending is allowed).

VCC

Input

Power supply ：3.3~ 5.5V DC

GND

Input

Ground

Fixed hole

Connect to GND

Fixed hole

Connect to GND

Fixed hole

Connect to GND

4. Connect to MCU

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30DC User Manual

No.

Description（STM8L MCU）

The UART module is TTL level.

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

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30DC User Manual

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

broadcast is realized.

5.4 Monitor address

For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;

When module A is the receiver, it can receive the data sent from all modules under channel 0x04, the purpose 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 the start of

module’s normal work.

5.6 AUX description

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

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