Ebyte ASR6601 Manuale utente

E78-868LN22S(6601)

ASR6601 Wireless module

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S User Mannual

Contents

DISCLAIMER............................................................................................................................................................................................. 2

1. PRODUCT OVERVIEW.................................................................................................................................................................... 1

1.1 INTRODUCTION............................................................................................................................................................. 1

1.2 APPLICATION.................................................................................................................................................................1

2. SPECIFICATIONS............................................................................................................................................................................. 1

2.1 MAIN PARAMETERS...................................................................................................................................................... 1

2.2 WORKING PARAMETERS...............................................................................................................................................1

2.3 PARAMETER DESCRIPTION...........................................................................................................................................2

3. MECHANICAL DIMENSIONS AND PIN DEFINITION.................................................................................................................3

3.1 E78-868LN22S(6601) DIMENSION DRAWING........................................................................................................... 3

3.2 PIN DEFINITION.............................................................................................................................................................4

3.3 RECOMMENDED CONNECTION DIAGRAM.....................................................................................................................5

4. TERMS AND DEFINITIONS.............................................................................................................................................................6

2.1 LORA............................................................................................................................................................................ 6

2.2 LORAWAN................................................................................................................................................................... 6

2.3 ADR..............................................................................................................................................................................6

5. LORAWAN APPLICATION MODEL DIAGRAM.............................................................................................................................8

6. ACCESS DEMO................................................................................................................................................................................. 9

7. AT COMMAND..................................................................................................................................................................................11

8. FAQ.................................................................................................................................................................................................... 32

8.1 COMMUNICATION DISTANCE IS VERY SHORT.............................................................................................................32

8.2 MODULE IS EASY TO BE DAMAGED............................................................................................................................32

IMPORTANT STATEMENT....................................................................................................................................................................32

REVISION HISTORY..............................................................................................................................................................................33

ABOUT US............................................................................................................................................................................................... 33

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S(6601)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. E78-868LN22S User Mannual

1. Product Overview

1.1 Introduction

E78-868LN22S (6601) series of products is the Chengdu EBYTE Electronic

Technology Co., Ltd. design and production of the standard LoraWan node module,

operating band EU 850 to 925 MHZ, support CLASS - A/CLASS-C node type, support

ABP /OTAA two ways to access the network, at the same time, the module has a variety

of low-power modes, external communication interface using standard UART, With

easy configuration of AT instructions, users can access the standard LoraWan network,

2000 is the perfect choice for current IoT applications.

1.2 Application

Smart home and industrial sensors, etc

Security system, positioning system;

Wireless remote control, drones;

Wireless game remote control;

Healthcare products;

Wireless voice, wireless headphones;

Automotive applications.

2. Specifications

2.1 Main parameters

2.2 Working parameters

The parameter

Min

Type

Max

unit

Product model

Core IC

Size

Nand weight

Operating

temperature

Operating

humidity

Storage

temperature

E78-868LN22S(6601)

ASR6601CB

20* 14*2.8

1.2g

-40 ~ 85℃

10% ~ 90%

-40 ~ 125°C

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S(6601)User manual

category

Emission current

([email protected])

110

120

130

Receive current

([email protected])

Turn off the current

2.4

2.5

2.6

Transmit power

21.0

21.2

21.8

dBm

Receive sensitivity

-139

-140

dBm

TCXO crystal

MHZ

TCXO crystal voltage

configuration

1.8

3.3

Recommended

operating band

850

868/900/915

925

MHZ

The supply voltage

2.5

3.3

3.7

Communication level

2.5

3.3

3.7

main parameters

Ddescription

remark

Reference distance

5600m

Clear and open, antenna height 2 meters, air rate 1kbps

Crystal frequency

32MHz

Modulation

LoRa(recommendation)

GFSK Mode ，FLRC Mode，LoRa Mode

Packing method

SMD

Interface method

1.27mm

Communication Interface

SPI

0～10Mbps

Dimensions

20*14mm

Antenna interface

IPEX/stamp hole

the equivalent impedance is about 50Ω

2.3 Parameter description

When designing the power supply circuit for the module, it is often recommended to reserve more than 30% margin,

and the whole machine is conducive to long-term stable operation;

The current required at the moment of launch is relatively large, but often because the launch time is extremely short,

the total energy consumed may be smaller;

When the customer uses an external antenna, the impedance matching degree between the antenna and the module

at different frequency points will affect the size of the emission current to different degrees;

The current consumed when the RF chip is in a purely receiving state is called the receiving current. Some RF chips

with communication protocols or the developers have loaded some self-developed protocols on the whole machine,

which may cause the receiving current of the test to be too large;

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S(6601)User manual

The shutdown current is often much smaller than the current consumed by the power supply part of the whole

machine at no load, so it is not necessary to be excessively demanding;

Because the material itself has a certain error, a single LRC component has an error of ±0.1%, but hesitate to use

multiple LRC components in the entire RF loop, there will be a situation of error accumulation, resulting in a difference

between the transmit current and the receive current of different modules;

Reducing the transmission power can reduce power consumption to a certain extent, but for many reasons, reducing

the transmission power transmission will reduce the efficiency of the internal PA.

3. Mechanical Dimensions and Pin Definition

3.1 E78-868LN22S(6601) dimension drawing

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S(6601)User manual

3.2 Pin definition

Pin number

Pin name

Pin direction

Pin usage

GND

Ground wire, connected to the power reference

ground

VCC

Power supply, range 2.5V~3.7V (recommend to add

ceramic filter capacitor)

SETB

Low-power wake-up pin

DIO1

Input/output

NC（reserved pin）

BUSY

Input/output

NC（reserved pin）

I2C_SDA

Input/output

NC（reserved pin）

I2C_SCL

Input/output

NC（reserved pin）

UART_CTS

Input/output

NC（reserved pin）

UART_RTS

Input/output

NC（reserved pin）

GND

Ground wire, connected to the power reference

ground

Antenna interface, stamp hole (50 ohm characteristic

impedance)

GND

Ground wire, connected to the power reference

ground

GND

Ground wire, connected to the power reference

ground

GND

Ground wire, connected to the power reference

ground

GND

Ground wire, connected to the power reference

ground

XRES

Input

External reset pin

ADC_IN

Input

NC（reserved pin）

THE

Input/output

NC（reserved pin）

SILK

Input/output

NC（reserved pin）

UART_RX

Input/output

UART RX pin

UART_TX

Input/output

UART TX pin

SWD_DATA

Input/output

SWD Data pin

SWD_CLK

Input/output

SWD Clock pin

GND

Ground wire, connected to the power reference

ground

SPI_MISO

Input/output

SPI MISO test point is internally connected and

cannot be used as an external SPI

SPI_NSS

Input/output

SPI NSS test point is internally connected and cannot

be used as an external SPI

SPI_MOSI

Input/output

SPI MOSI test point is internally connected and

cannot be used as an external SPI

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S(6601)User manual

SPI_SCK

Input/output

SPI SCK test point is internally connected and cannot

be used as an external SPI

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

official 《ASR6601 Datasheet》★

3.3 Recommended connection diagram

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S User Mannual

4. Terms and Definitions

2.1 LoRa

LoRa is one of the LPWAN communication technologies, known as Long Range Radio, means "long distance radio";

The company that currently dominates the technology is semtech abroad;

LoRa's main ISM brand is in the global free band: 433MHz, 470MHz, 868MHz, 915MHz, etc.

Features: Low power consumption, long distance, low cost.

2.2 LoRaWAN

The LoRa Alliance is an open, non-profit organization led by Semtech in March 2015. The Alliance released a low-power

wide area network standard based on the open source MAC layer protocol: the LoRaWAN protocol standard.Network

topology: star structureNetwork composition: LoRa module, gateway (Gateway or base station), Server (including Network

Server, Network control, Application Server). LoRaWAN divides LoRa nodes into three categories: A/B/C:

Two-way transmission terminal (Class A):

The Class A terminal will follow two short downlink receiving windows immediately after each uplink to achieve two-way

transmission. The terminal arranges the transmission time slot based on its own communication requirements, with small

changes on the basis of random time (that is, the ALOHA protocol). This Class A operation provides the application with the

lowest power consumption terminal system, and only requires the application to perform the server's downlink transmission

within a short time after the terminal's uplink transmission. Downlink transmission by the server at any other time has to wait

for the next uplink of the terminal.

Two-way transmission terminal with designated receiving time slot (Class B):

Class B terminals will have more receiving time slots. In addition to the random receiving window of Class A, Class B

devices will also open other receiving windows at the specified time. In order for the terminal to open the receiving window

at a specified time, the terminal needs to receive a time synchronization beacon (Beacon) from the gateway. This allows the

server to know when the terminal is listening.

Two-way transmission terminal that maximizes the receiving time slot (Class C):

The Class C terminal basically keeps the receiving window open all the time, and only closes it briefly when sending.

Class C terminals consume more power than Class A and Class B, but at the same time, the delay from the server to the

terminal is also the shortest.

Note: E78-868LN22S(6601) supports Class A and Class C equipment types;

2.3 ADR

ADR is called adaptive data rate. In the loraWan network system, in order to maximize the battery life and overall

network capacity of the terminal device, the LoRaWAN network server manages the data rate and RF output of each

terminal device through the adaptive data rate (ADR) algorithm. Through the ADR technology, In the LORAWAN system,

the server automatically updates and sets the speed of the node according to the signal receiving ability of the node. The

Chengdu Ebyte Electronic Technology Co.,Ltd. E78-868LN22S(6601)User manual

speed is low when the distance is far away, and the speed is high when the distance is close. This greatly improves the

effective bandwidth and load capacity of the network in practical applications.

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