User's Manual

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User Manual

General introduction

LoRa SX-1276 1W module is a small-sized Sub 1GHz LoRa

SMD wireless module designed by Chengdu Ebyte, based on the original

imported RF chip SX1278/SX1276 from SEMTECH, supporting LoRa Spread spectrum technology, which brings longer transmission

distance and has the advantages of concentrated power density and strong anti-interference.

The 30dBm module with PA(power amplifier) and low-noise amplifier enhanced the communication stability and communication

distance; The 20dBm module integrated the industrial crystal oscillator, accuracy is less than 10ppm, with stable batch production, and

widely used for utilities, IOT transformation and smart home,

The related RF parameters can get through the domestic and overseas certification, such as FCC, CE, RoHs etc., satisfying export

demand.

Model No.

RF IC

Operating

Frequency

Transmitting Power

Communication

distance

Packaging

Antenna type

MHz

dBm

LoRa SX-1276

1W module

SX1276

902~928

10.0

SMD

Stamp hole

/IPEX

LoRa SX-1276 1W module series module is a hardware platform. Without any program, users need to conduct the secondary

development.

Summary of content (9 pages)

PAGE 1
User Manual General introduction LoRa SX-1276 1W module is a small-sized Sub 1GHz LoRaTM SMD wireless module designed by Chengdu Ebyte, based on the original imported RF chip SX1278/SX1276 from SEMTECH, supporting LoRa Spread spectrum technology, which brings longer transmission distance and has the advantages of concentrated power density and strong anti-interference.
PAGE 2
SX127X RF Module User Manual of E19 Series Modules Contents GENERAL INTRODUCTION ................................................................................................................................................................ 1 1. TECHNICAL PARAMETERS ...................................................................................................................................................... 3 1.1 GENERAL PARAMETERS ................................................................
PAGE 3
1. Technical parameters 1.1 General parameters Model No. LoRa SX-1276 1W module IC SX1276 Size 25.0*40.0 mm Net WT Operating temp. Operating humidity Storage temp. 5.2±0.1g -40 ~ 85℃ 10% ~ 90% -40 ~ 125°C 1.2 Electrical parameters 1.2.1 Transmitting current Model No.
PAGE 4
SX127X RF Module User Manual of E19 Series Modules ● If the voltage is at maximum value for long time, the module may be damaged; ● The power supply pin has certain surge-resistance ability, LoRa SX-1276 1W module 3.3 3.5 5.5 V DC but the potential pulse higher than the maximum power supply voltage; ● The power supply voltage is recommended to be higher than 3.0V, if the voltage is lower than 3.0V, the RF parameters will be affected at different degrees. 1.2.5 Communication level Model No.
PAGE 5
SX127X RF Module User Manual of E19 Series Modules ● It ensures that the performance of the module can reach the standard if it works in recommended operating LoRa SX-1276 1W module 900.0 915.0 931.0 MHz frequency. ● It is recommended to avoid the crowded frequencies, such as 433.0MHz, 868.0MHz, 915MHz and other integer frequencies. 1.
PAGE 6
SX127X RF Module User Manual of E19 Series Modules 7 DIO0 Input/Output Configurable IO port（Please find more on SX127X datasheet） 8 RST Input Reset 9 GND Configurable IO port（Please find more on SX127X datasheet） 10 GND Configurable IO port（Please find more on SX127X datasheet） 11 VCC Power supply: 4.75~5.
PAGE 7
SX127X RF Module ⚫ User Manual of E19 Series Modules Make sure the grounding is good, with low power ripple, also should increase filter capacitor and as close as possible to the VCC and GND pins. ⚫ SPI communication rate should not be set too high, usually around 1M ⚫ Make sure TXEN pin is high level, RXEN pin is low level when transmitting; make sure RXEN pin is high level, TXEN pin is low level when receiving; make sure TXEN、RXEN pin is low level before turning off.
PAGE 8
SX127X RF Module User Manual of E19 Series Modules 6.2 The module can be damaged easily ⚫ Please check the power supply, which should be 1.8v-3.8v. If the value exceeds that, the module will be damaged. ⚫ Please check the stability of power supply. The voltage cannot be in fluctuations frequently. ⚫ Please ensure all the installation operations are anti-static.
PAGE 9
SX127X RF Module User Manual of E19 Series Modules 2.6 RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. 2.7 Antennas This radio transmitter Y8E-VM-LORA has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated.