Ebyte E22-230T22D Manuale utente

E22-230T22D User Manual

SX1262 230MHz 160mW LoRa Wireless Module

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D User Manual

Contents

Disclaimer............................................................................................................................................................. 3

1 Introduction........................................................................................................................................................4

1.1 Brief Introduction........................................................................................................................................4

1.2 Features.......................................................................................................................................................4

1.3 Application Scenarios................................................................................................................................. 5

2 Specifications.....................................................................................................................................................5

2.1 Limit Parameters.........................................................................................................................................5

2.2 Working Parameters....................................................................................................................................5

3 Mechanical Dimensions and Pin Definitions.....................................................................................................6

4Recommended Connecting Diagram................................................................................................................7

5Function Details............................................................................................................................................8

5.1 Fixed Point Launch................................................................................................................................8

5.2 Broadcast Transmission.........................................................................................................................9

5.3 Broadcast Address................................................................................................................................. 9

5.4 Listening Address.................................................................................................................................. 9

5.5 Module Reset.........................................................................................................................................9

5.6 AUX Explained..................................................................................................................................... 9

5.6.1 Serial data output indication.................................................................................................................. 10

5.6.2 Wireless transmitting indication............................................................................................................ 10

5.6.3 Modules are in the process of being configured.................................................................................... 10

5.6.4 Cautions................................................................................................................................................. 11

6 Working mode................................................................................................................................................. 11

6.1 Mode Switching...................................................................................................................................12

6.2 General Mode (Mode 0)...................................................................................................................... 12

6.3 WOR Mode (Mode 1)..........................................................................................................................13

6.4 Configuration Mode (Mode 2)............................................................................................................ 13

6.5 Deep Sleep Mode (Mode 3).................................................................................................................13

7 Register Read/Write Control............................................................................................................................14

7.1 Command Format................................................................................................................................ 14

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D User Manual

7.2 Register Description............................................................................................................................ 15

7.3 Factory Default Parameters................................................................................................................. 18

8 Use of Relay Networking Mode...................................................................................................................... 18

9 Host Computer Configuration Instructions......................................................................................................19

10 Hardware Design........................................................................................................................................... 20

11 Common Questions........................................................................................................................................21

11.1 Unsatisfactory transmission distance......................................................................................................21

11.2 Module is vulnerable to damage............................................................................................................. 21

11.3 BER is too high.......................................................................................................................................21

12 Welding Work Instruction............................................................................................................................. 21

12.1 Reflow Temperature............................................................................................................................... 21

12.2 Reflow Profile.........................................................................................................................................22

13 Related Models.............................................................................................................................................. 22

14 Antenna Recommendations........................................................................................................................... 23

15 Bulk Packaging.............................................................................................................................................. 24

Revision history.................................................................................................................................................. 24

About us.............................................................................................................................................................. 25

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D 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

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

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. E22-230T22D User Manual

1 Introduction

1.1 Brief Introduction

E22-230T22D is a new generation of LoRa wireless module, based on

SEMTECH SX1262 RF chip wireless serial module (UART), with multiple

transmission modes, working in 220.125 ~ 236.125MHz frequency band

(default 230.125MHz), LoRa spread spectrum technology, TTL level

output, compatible with 3.3V and 5V voltage.

E22-230T22D adopts the new generation LoRa spread spectrum

technology. Compared with the traditional SX1276 solution, SX1262 solution has longer transmission distance, faster speed, lower

power consumption and smaller size; it supports wake-on-air, wireless configuration, carrier listening, automatic relay, communication

key and other functions, supports sub-packet length setting, and can provide custom development services.

1.2 Features

Development of new LoRa spread spectrum modulation technology based on SX1262, bringing longer communication distance

and better anti-interference capability.

Support for automatic relay networking, multi-level relay for ultra-long-distance communication, multiple networks running

simultaneously in the same area.

Support users to set their own communication key and it cannot be read, which greatly improves the confidentiality of user data.

Support LBT function to listen to the channel environment noise before transmitting, which can greatly improve the

communication success rate of the module in harsh environment.

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

Support wireless parameter configuration, send command packets via wireless to remotely configure or read wireless module

parameters.

Support for over-the-air wake-up, i.e., an ultra-low power function for battery-powered application solutions.

Support for fixed-point transmission, broadcast transmission, and channel monitoring.

Support deep hibernation, the power consumption of the whole machine in this mode is about 2uA.

Support 230MHz power band with better penetration and bypassing capability than 433MHz.

Communication distances of up to 5 km under ideal conditions.

The parameters are saved at power-down, and the module will work according to the set parameters after re-powering.

Efficient watchdog design, in the event of an abnormality, the module will restart automatically and will continue to work

according to the previous parameter settings.

Support data transfer rates from 0.3k to 15.6kbps.

Support 2.3 to 5.5V power supply, greater than 3.3V power supply can ensure the best performance.

Industrial-grade standard design, supporting long time use at -40 to +85°C.

Dual antennas are optional (IPEX/stamp hole) for user-friendly secondary development and easy integration.

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D User Manual

1.3 Application Scenarios

Home security alarms and remote keyless entry.

Smart home and industrial sensors, etc.

Wireless alarm security systems.

Building automation solutions.

Wireless industrial grade remote controls.

Healthcare products.

Advanced Meter Reading Architecture (AMI).

Automotive industry applications.

2 Specifications

2.1 Limit Parameters

Main parameters

Performance

Remarks

Minimum value

Maximum value

Supply voltage (V)

5.5

Permanent module burnout above 5.5V

Blocking Power (dBm)

Less probability of burnout with close use

Operating temperature (℃)

-40

+85

Industrial Grade

2.2 Working Parameters

Main parameters

Performance

Remarks

Minimum

value

Typical

values

Maximum

value

Operating voltage (V)

2.3

5.0

5.5

≥3.3V for guaranteed output power

Communication level (V)

3.3

Use of 5V TTL recommended plus level shift

Operating temperature (℃)

-40

+85

Industrial grade design

Operating frequency band

(MHz)

220.125

236.125

ISM band support

Power

consumption

Emission

current

(mA)

107

Instantaneous power consumption

Receiving

current

(mA)

Dormant

current (uA)

Software shutdown

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D User Manual

Maximum transmit power

(dBm)

21.5

22.0

22.5

Receiving Sensitivity (dBm)

-146

-147

-148

Air speed 2.4kbps

Air Rate (bps)

0.3k

2.4k

15.6k

User-programmed control

Main parameters

Description

Remarks

Reference Distance

5km

Clear and open, antenna gain 5dBi, antenna height 2.5m, air rate 2.4kbps

Launch length

240 Byte

Packets of 32/64/128/240 bytes can be sent by command

Cache capacity

1000 Byte

Modulation method

LoRa

Next generation LoRa modulation technology

Communication Interface

UART serial

port

TTL level

Packaging method

SMD

Interface method

1.27mm

Dimension

16*26 mm

RF Interface

IPEX/Stamp

Hole

Equivalent impedance about 50Ω

3 Mechanical Dimensions and Pin Definitions

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D User Manual

Figure 3-1 Mechanical dimensions and pin definition

Table 3-1 Pin definition table

Pins

Serial

number

Pins

Name

Pin Orientation

Pin Usage

Input (very weak

pull-up)

Work with M1 to determine the 4 modes of operation of the module (not

suspended, can be grounded if not in use)

Input (very weak

pull-up)

Work with M0 to determine the 4 modes of operation of the module (not

suspended, grounded if not in use)

RXD

Input

TTL serial input, connected to the external TXD output pin.

TXD

Output

TTL serial output, connected to the external RXD input pin.

AUX

Output

Used to indicate the working status of the module; user wakes up the external

MCU and outputs low during power-on self-test initialization; (can be

suspended)

VCC

Input

Module power supply positive reference, voltage range: 3.0 to 5.5V DC

GND

Input

Module Ground

Fixing

hole

Fixing hole

Fixing

hole

Fixing hole

Fixing

hole

Fixing hole

4Recommended Connecting Diagram

Serial

number

Module and microcontroller brief connection instructions

(above diagram with STM8L microcontroller as an example)

The wireless serial module is TTL level, please connect with MCU of TTL level.

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D User Manual

Some 5V microcontrollers may need to add 4~10K pull-up resistors to the TXD and AUX pins of the module.

5Function Details

5.1 Fixed Point Launch

Chengdu Ebyte Electronic Technology Co.,Ltd. E22-230T22D User Manual

5.2 Broadcast Transmission

5.3 Broadcast Address

Example: Set module A address to 0xFFFF and channel to 0x04.

When module A is transmitting (same mode, transparent transmission method), all receiving modules under 0x04 channel can

receive the data for broadcasting purpose.

5.4 Listening Address

Example: Set module A address to 0xFFFF and channel to 0x04.

When module A acts as a receiver, it can receive all the data under 0x04 channel for the purpose of listening.

5.5 Module Reset

Immediately after the module is powered up, the AUX will output a low level and perform a hardware self-test, as well as set the

operating mode according to user parameters.

During this process, AUX is kept low, and when it is finished, AUX outputs high and starts to work normally according to the

working mode formed by the combination of M1 and M0.

Therefore, the user needs to wait for the rising edge of AUX as the starting point for the module to work properly.

5.6 AUX Explained

AUX is used for wireless transceiver buffer indication and self-test indication.

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