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Chengdu Ebyte Electronic Technology Co., Ltd.

E78-900M22S1A User Manual

3

1.Overview

1.1 Introduction

The E78 series products are radio frequency transceiver modules with
multiple frequency bands designed and produced by Ebyte, with long
communication distance and extremely low current consumption in low
power consumption mode. This module is a small-volume patch type (pin
spacing 1.1mm).
The E78 series products use ASR's ASR6505 chip, which is a single-chip
SoC integrated with ultra-low power LoRa, using Semtech's advanced
low-power LoRa Transceiver SX1262, and integrates a STM8L152 low-power MCU, Flash capacity 64kB, SRAM
Capacity 4kB, EEPROM capacity 2K, small size, ultra-low power consumption, support LoRaWAN, LinkWAN
multiple protocol standards, suitable for a variety of Internet of Things application scenarios, is currently the best
choice for LPWAN application chips.
The E78 series products are hardware platforms and cannot be used independently. Users need to carry out
secondary development. (We can customize standard LoRaWan and Ali linkWan nodes)

Features:

Under ideal test conditions, the communication distance can reach 5.5km;
The maximum transmit power is 22dBm, and the software is multi-level adjustable;
Support license-free ISM 868/915MHz frequency band;
Support multiple modulation modes (GFSK Mode, LoRa);
Support 1.8

3.7V power supply, power supply greater than 3.3V can guarantee the best performance;

Industrial standard design, supporting long-term use at -40

+85

;

Dual antennas are optional (IPX/PCB), which is convenient for users to develop and integrate;
Based on the ASR6505 chip development, users can directly use it for secondary development.

Applications:

Smart home and industrial sensors, etc.;
Security system, positioning system;
Wireless remote control, UAV;
Wireless game remote control;
Healthcare products;
Wireless voice, wireless headset;
Automotive industry applications.

Содержание E78-900M22S1A

Страница 1: ...Chengdu Ebyte Electronic Technology Co Ltd E78 900M22S1A user manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd E78 900M22S1A ASR6505 868 915MHz LoRaWAN RF Module...

Страница 2: ...AMETERS 4 3 SIZE AND PIN DEFINITION 6 3 1 SIZE AND PIN DEFINITION 6 3 2 PIN DEFINITION 7 4 HARDWARE AND SOFTWARE GUIDE 8 4 PROGRAMMING DIAGRAM AND GUIDE 9 4 1 E78 900M22S1A BURNING INTERFACE 9 5 PRODU...

Страница 3: ...ure 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 liabili...

Страница 4: ...e for LPWAN application chips The E78 series products are hardware platforms and cannot be used independently Users need to carry out secondary development We can customize standard LoRaWan and Ali li...

Страница 5: ...g temperature 40 85 Industrial design Working frequency MHz 850 868 915 925 Support ISM frequency band Power Emission current mA 145 Instantaneous power consumption Receiving current mA 13 Sleep curre...

Страница 6: ...ith communication protocols or developers have loaded some self developed protocols on the whole machine which may cause the receiving current of the test to be too large When the customer uses an ext...

Страница 7: ...Chengdu Ebyte Electronic Technology Co Ltd E78 900M22S1A User Manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 6 3 Size and Pin definition 3 1 Size and Pin definition...

Страница 8: ...18 GND Ground wire connected to the power reference ground 19 ANT Output Antenna interface stamp hole 50 ohm characteristic impedance 20 GND Ground wire connected to the power reference ground 21 GND...

Страница 9: ...m value it will cause permanent damage to the module Please check the stability of the power supply and the voltage should not fluctuate greatly and frequently When designing the power supply circuit...

Страница 10: ...d the antenna to the outside of the case The antenna must not be installed inside the metal shell which will greatly reduce the transmission distance 4 1 Software Writing This module is SX1262 STM8L15...

Страница 11: ...eheating temp 150 200 Preheat Time Tsmin to Tsmax ts Preheating time 60 120 sec 60 120 sec Average ramp up rate Tsmax to Tp Average ramp up rate 3 second max 3 second max Liquidous Temperature TL Liqu...

Страница 12: ...5V the lower the voltage the lower the transmitting power Due to antenna quality or poor matching between antenna and module 6 2 Module is easy to damage Please check the power supply source ensure it...

Страница 13: ...Co Ltd 12 Revision history Version Date Description Issued by 1 0 2021 03 1 Initial version Linson About us Website www ebyte com Sales info cdebyte com Support support cdebyte com Tel 86 28 61399028...

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