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Copyright ©2012–

2017

Chengdu Ebyte Electronic Technology Co.,Ltd                                                                                                                                                     

 

 

 

 

 

User Manual

 

General introduction   

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

TM

 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 

km 

LoRa SX-1276 

1W module 

SX1276 

902~928 

30 

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 Contents for LoRa SX-1276 1W

Page 1: ...mplifier 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 I...

Page 2: ...Receiving current 3 1 2 3 Turn off current 3 1 2 4 Supply voltage 3 1 2 5 Communication level 4 1 3 RF PARAMETERS 4 1 3 1 Transmitting Power 4 1 3 2 Receiving sensitivity 4 1 3 3 Recommended Frequency 4 1 4 TESTED DISTANCE 5 2 PIN DEFINITION 5 3 USAGE 6 4 REMARK 6 5 PRODUCTION GUIDANCE 7 5 1 REFLOW TEMPERATURE 7 5 2 REFLOW GRAPH 7 6 FAQ 7 6 1 THE COMMUNICATION DISTANCE IS TOO CLOSE 7 6 2 THE MODUL...

Page 3: ...fect the transmitting current value at different levels 1 2 2 Receiving current Model No Min Typ Max Unit Remark LoRa SX 1276 1W module 21 2 23 0 25 3 mA The current consumed when the RF chip is only working at receiving mode is called as receiving current the tested receiving current may be higher for some RF chips with communication protocol or the developers have loaded their own protocol to th...

Page 4: ...Ra SX 1276 1W module 29 6 30 0 30 5 dBm Due to the error of the materials each LRC component has 0 1 error so error accumulation will occur since multiple LRC components are used in the whole RF circuit and the transmitting currents will be different at different modules The power consumption can be lowered by lowering the transmitting power but the efficiency of the internal PA will be decreased ...

Page 5: ... 30 bytes in each packet the range at data lose rate of lower than 5 is valid range In order to obtain meaningful and reproduceable results we conducted the tests under in clear weather with little electromagnetic interference at suburb areas Distance may be shorter with interference or obstacles 2 Pin definition 2 1 2 LoRa SX 1276 1W module Pin No Name Direction Usage 1 GND Ground electrode conne...

Page 6: ...TXEN pin is in high level RXEN pin is in low level when transmitting 17 RXEN Input Radio frequency switch control Make sure the RXEN pin is in high level TXEN pin is in low level when receiving 18 GND Ground electrode connected to the power reference ground 19 ANT Antenna 20 GND Ground electrode connected to the power reference ground 21 GND Ground electrode connected to the power reference ground...

Page 7: ...rature rise is 2 5 s Recirculation zone Maximum temperature is 235 245 Above 217 the time will be 40 80s Cooling zone Maximum cooling is 4 s 5 2 Reflow Graph 6 FAQ 6 1 The communication distance is too close When there s straight Communication barrier the communication distance will be reduced accordingly Temperature humidity and same frequency interference will increase the rate of communication ...

Page 8: ...uipment Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions m...

Page 9: ...e Antenna No Operate frequency band Antenna Type Maximum antenna gain Antenna 1 902 928MHz External Antenna 1 5dBi 2 8 Label and compliance information The final end product must be labeled in a visible area with the following Contains FCC ID Y8E VM LORA 2 9 Information on test modes and additional testing requirements Host manufacturer is strongly recommended to confirm compliance with FCC requir...

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