Ebyte E220-400MM22S Bedienungsanleitung

E220-400MM22S

LLCC68 433/470MHz 160mW SPI LoRa Module SMD Type

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

Contents

Disclaimer ...........................................................................................................................................................................................................2

1.2 Features............................................................................................................................................................................................... 3

1.3 Application ......................................................................................................................................................................................... 3

2 Specification and Parameter ..............................................................................................................................................................4

2.1 RF Parameter ..................................................................................................................................................................................... 4

2.2 Electrical Parameter ......................................................................................................................................................................... 4

2.3 Hardware Parameter.........................................................................................................................................................................5

3 Size and Pin Definition................................................................................................................................................................................ 5

4 Basic Operation ..............................................................................................................................................................................................6

4.1 Hardware Design.............................................................................................................................................................................. 6

4.2 Software Design ................................................................................................................................................................................7

5 Basic Application ...........................................................................................................................................................................................8

5.1 Basic Circuit ................................................................................................................................................................................... 8

6 FAQ...................................................................................................................................................................................................................8

6.1 Communication Range Is Too Short ............................................................................................................................................8

6.2 Module Is Easy To Damage ........................................................................................................................................................... 9

6.3 BER(Bit Error Rate) Is High ......................................................................................................................................................... 9

7 Production Guidance..................................................................................................................................................................................10

7.1 Reflow Soldering Temperature ...................................................................................................................................................10

7.2 Reflow Soldering Curve ...............................................................................................................................................................10

8 E220 Series...................................................................................................................................................................................................11

9 Antenna Recommendation ........................................................................................................................................................................11

9.1 Recommendation ............................................................................................................................................................................11

10 Package For Batch Order........................................................................................................................................................................12

Revision History ............................................................................................................................................................................................. 12

About us ............................................................................................................................................................................................................13

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

Disclaimer

The information in this document, including the URL address for reference, is

subject to change without notice. Documents are provided "as is" without any

warranty, including any warranty of merchantability, fitness for a particular purpose or

non-infringement, and any warranty referred elsewhere of any proposal, specification

or sample。

This document does not bear any responsibility, including the responsibility

for any patent infringement caused by the use of the information in this document.This

document does not grant any license for the use of intellectual property by estoppel or

otherwise, whether express or implied.

The data in this paper are all from Ebyte laboratory, and the actual results may be

slightly different.

It is hereby declared that all trade names, trademarks and registered trademarks

mentioned here are the property of their respective owners.

The final interpretation right belongs to Chengdu Ebyte Electronic Technology

Co., Ltd.

Notice:

The contents of this manual may be changed due to product version upgrade or other reasons. Ebyte Electronic

Technology Co., Ltd. reserves the right to modify the contents of this manual without any notice or prompt. This

manual is only used as a guide. Chengdu Ebyte Electronic Technology Co., Ltd. will try its best to provide accurate

information in this manual. However, Chengdu Ebyte Electronic Technology Co., Ltd. does not guarantee that the

contents of this manual are completely correct, and all statements, information and suggestions in this manual do

not constitute any express or implied warranty.

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

1 Overview

1.1 Brief Introduction

E220-400MM22S is an ultra-small volume independently developed based

on a new generation of LoRaTM RF chip LLCC68 produced by Semtech, and is

suitable for 433MHz, 470MHz SMD LoRaTM wireless modules, using industrial

grade 32MHz crystal oscillator.

Since it adopts the imported LLCC68 as the core of the module, compared

with the previous generation LoRaTM transceiver, the anti-interference

performance and communication distance have been further improved. Because it

adopts the new LoRaTM modulation technology, its anti-interference performance and communication distance far

exceed the current FSK and GFSK modulation products. This module is mainly aimed at smart home, wireless meter

reading, scientific research and medical treatment, as well as medium and long distance wireless communication

equipment. This product can cover the ultra-wide applicable frequency range of 410~493MHz.

Since this module is a pure RF transceiver module, it needs to use MCU driver or use a dedicated SPI debugging

tool.

1.2 Features

The measured distance can reach 5500m;

Maximum transmit power 160mW, multi-level software adjustable;

Support global license-free ISM 433/470MHz frequency band;

Support data transmission rate of 1.76kbps~62.5kbps in LoRaTM mode;

Supports data transfer rates up to 300kbps in FSK mode;

Large FIFO capacity, support 256Byte data buffer;

Support spreading factors SF5, SF6, SF7, SF8, SF9, SF10, SF11;

Support 1.8V~3.7V power supply, more than 3.3V power supply can ensure the best performance;

Industrial-grade standard design, support long-term use at -40 ~ 85°C;

Ultra-small 10*10mm package, convenient for secondary development and integration.

1.3 Application

Home security alarm and remote keyless entry;

Smart home and industrial sensors, etc;

Wireless alarm security system;

Building automation solutions;

Wireless industrial grade remote control;

Healthcare products;

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

Advanced meter reading architecture (AMI);

Automotive industry applications.

2 Specification and Parameter

2.1 RF Parameter

RF Parameter

Parameter Value

Remark

Operating frequency

410MHz～493MHz

Support ISM

Transmit power

21dBm～22dBm

The software is adjustable and needs to be developed and set by

the user

Receiving sensitivity

-129dBm

BW_L=250kHz，SF = 10，LORATM

FIFO

256Byte

Maximum length of single transmission

Modulation mode

LoRa

LoRa modulation is recommended

Blocking power

10dBm

The probability of burning at close range is small

Air rate

LoRa（bps）

1.76k～62.5k

User programming control

Reference distance

5500m

Clear and open environment, antenna gain 5dBi, antenna height

2.5 meters, air rate 2.4kbps

2.2 Electrical Parameter

Main Parameter

Performance

Remark

Min.

Type

Max.

Operating voltage（V）

1.8

3.3

3.7

≥3.3V can guarantee the output power, more than 3.7V will

permanently burn the module

Communication level（V）

3.3

Risk of burnout with 5V TTL

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

Operating temperature（℃）

-40

+85

Industrial grade design

Power

consumption

TX current

（mA）

100

Instantaneous power consumption

RX current

（mA）

Sleep current

（uA）

1.2

software shutdown

2.3 Hardware Parameter

Hardware Parameters

Parameter Value

Remark

Crystal oscillation frequency

32MHz

Package

SMD

Connector

stamp hole

Spacing 1.27mm

Communication interface

SPI

0-10Mbps

Size

10* 10*2.5 mm

With shield

Net weight

0.5g±0.02g

RF interface

stamp hole

3 Size and Pin Definition

Pin No.

Item

Direction

Description

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

VCC

Power supply, range 1.8V~3.7V (recommended to add external ceramic

filter capacitor)

GND

Ground wire, connected to the power reference ground

NRST

Input

Chip reset trigger input pin, active low

ANT

RF interface, stamp hole

GND

Ground wire, connected to the power reference ground

TXEN

Input

RF switch launch control pin, connected to external microcontroller IO

or DIO2, active high

RXEN

Input

RF switch receiving control pin, connected to external microcontroller

IO, active high

BUSY

Output

Used for status indication (see LLCC68 manual for details)

MISO

Output

SPI data output pin

MOSI

Input

SPI data input pin

NSS

Input

Module chip select pin for starting an SPI communication

SCK

Input

SPI clock input pin

GND

Ground wire, connected to the power reference ground

DIO3

Input/Output

Configurable general-purpose IO port (see LLCC68 manual for details)

DIO2

Input/Output

Configurable general-purpose IO port (see LLCC68 manual for details)

DIO1

Input/Output

Configurable general-purpose IO port (see LLCC68 manual for details)

For the pin definition, software driver and communication protocol of the module, please refer to the official

LLCC68 Datasheet of SEMTECH

4 Basic Operation

4.1 Hardware Design

It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible and

the module needs to be reliably grounded;

Please pay attention to the correct connection of the positive and negative poles of the power supply,

reverse connection may cause permanent damage to the module;

Please check the power supply to ensure that between the recommended supply voltage, if exceeding the maximum,

the module will be permanently damaged;

Please check the stability of the power supply. Voltage can not fluctuate greatly and frequently;

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 should be as far away as possible from the power supply, transformers, high-frequency wiring and other

parts with large electromagnetic interference;

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

Bottom Layer High-frequency digital routing, high-frequency analog routing, and power routing must be avoided

under the module. If it is necessary to pass through the module, assume that the module is soldered to the Top Layer,

and the copper is spread on the Top Layer of the module contact part(well grounded), it must be close to the digital

part of the module and routed in the Bottom Layer;

Assuming the module is soldered or placed over the Top Layer, it is wrong to randomly route over the Bottom Layer

or other layers, which will affect the module's spurs and receiving sensitivity to varying degrees;

It is assumed that there are devices with large electromagnetic interference around the module that will greatly

affect the performance. It is recommended to keep them away from the module according to the strength of the

interference. If necessary, appropriate isolation and shielding can be done;

Assume that there are traces with large electromagnetic interference (high-frequency digital, high-frequency analog,

power traces) around the module that will greatly affect the performance of the module. It is recommended to stay

away from the module according to the strength of the interference.If necessary, appropriate isolation and shielding

can be done;

It is not recommended to use 5V level for communication lines, and there is a risk of damage. A level conversion

circuit needs to be added;

The antenna installation structure has a great influence on the performance of the module. Make sure that the

antenna is exposed, preferably vertically upward. When the module is installed inside the case, a high-quality

antenna extension cable can be used to extend the antenna to the outside of the case;

The antenna must not be installed inside the metal shell, which will greatly weaken the transmission distance;

It is recommended to add a 200R protection resistor to the RXD/TXD of the external MCU.

4.2 Software Design

This module is LLCC68+ peripheral circuit, users can operate according to LLCC68 chip book;

DIO1, DIO2, and DIO3 are general-purpose IO ports, which can be configured with various functions; DIO2 can be

connected with TXEN, not with the IO port of MCU, and is used to control the RF switch transmission, see

LLCC68 manual for details, if not used, it can be left floating;

Internal use of 32MHz passive crystal, no pin control, software program control;

Difference between LLCC68 and SX1262/SX1268:

1. SX1262/SX1268 support spreading factors SF5, SF6, SF7, SF8, SF9, SF10, SF11, SF12;

LLCC68 supports spreading factors SF5, SF6, SF7, SF8, SF9, SF10, SF11.

2. Spread spectrum factor and receiver bandwidth that can be set by LLCC68:

LoRa® Rx/Tx, BW = 125 – 250 - 500 kHz,

LoRa®，SF = 5 - 6 - 7 - 8 - 9 for BW = 125 kHz,

LoRa®，SF = 5 - 6 - 7 - 8 - 9 - 10 for BW = 250 kHz,

LoRa®，SF = 5 - 6 - 7 - 8 - 9 - 10 - 11 for BW = 500 kHz;

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

5 Basic Application

5.1 Basic Circuit

Note: The L1 inductor is a protective device used to prevent the device from being damaged due to excessive input

power of the antenna. The user should add this inductor when using the module.

6 FAQ

6.1 Communication Range Is Too Short

The communication distance will be affected when obstacle exists;

Data lose rate will be affected by temperature, humidity and co-channel interference;

The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground;

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 case;

Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the

distance);

At room temperature, the low voltage of the power supply is lower than the recommended value. The lower the

voltage, the lower the output power;

Due to antenna quality or poor matching between antenna and module.

Chengdu Ebyte Electronic Technology Co., Ltd. E220-400MM22S User Manual

6.2 Module Is Easy To Damage

Please check the power supply to ensure that it is between the recommended supply voltages, as exceeding the

maximum value will cause permanent damage to the module;

Please check the stability of power source, the voltage cannot fluctuate too much;

Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic

susceptibility;

Please ensure the humidity is within limited range, some parts are sensitive to humidity;

Please avoid using modules under too high or too low temperature.

6.3 BER(Bit Error Rate) Is High

There are co-channel signal interference nearby, please be away from interference sources or modify

frequency and channel to avoid interference;

The clock waveform on the SPI is not standard, check whether there is interference on the SPI line, and the SPI bus

routing should not be too long;

Poor power supply may cause messy code. Make sure that the power supply is reliable;

The extension line and feeder quality are poor or too long, so the bit error rate is high.

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