DWM-LJ1276 LoRa transceiver RF module Datasheet

DWM-LJ1276 is LoRa transceiver RF module which build by Sx1276 chipset for more details about the Sx1276 you can visit the link: sx1276datasheet .

1.DWM-LJ1276 PIN Diagram

DWM-JL1276-datasheet-pin-dagram

DWM-JL1276-datasheet-pin-dagram

2.Pin Description

PIN No.  Name I/O/P Description
 1  GND  I  Ground
 2   MISO  O  SPI Data output
 3  MOSI  I  SPI Data input
 4  SCK  I  SPI Clock input
 5  NSS  I  SPI Chip select input
 6  RESET  I  Reset trigger input
 7  DIO5  I/O  Digital I/O, software configured
 8  GND  I  Ground
 9  ANT  O  RF Output
 10  GND  I  Ground
 11  DIO3  I/O  Digital I/O, software configured
 12  DIO4  I/O  Digital I/O, software configured
 13  VCC  I  Supply voltage for moudule
 14  DIO0  I/O  Digital I/O, software configured
 15  DIO1  I/O  Digital I/O, software configured
 16  DIO2  I/O  Digital I/O, software configured

3.Reference Design

DWM-JL1276-datasheet-reference-design

DWM-JL1276-datasheet-reference-design

3.1 BOM of Typical Application

Designator Description Manufacturer
 M1  Module LJ1295 16*16*1.8mm RoHS  Dwmzone
 U1  IC 8 BIT MCU STM8S003F3 SSOP20 RoHS  MICROICHIP
 U2  IC LDO XC6206P33PR 3.3V SOT-23 RoHS  TOREX
 L1  Thick film resistor0R 5% 1/16W 0402 RoHS  ROHM
 C1  NC
 C2  NC
 C3  CER 0.1uF/25V 20% X7R 0402 RoHS  MURATA
 C4  CER 0.1uF/25V 20% X7R 0402 RoHS  MURATA
 C5  CAP CER 10uF/16V 20% X5R 0402 RoHS  MURATA
 C6  CER 0.1uF/25V 20% X7R 0402 RoHS  MURATA
 C7  CAP CER 47uF/16V 20% X5R 1206 RoHS  MURATA
 C8  CER 0.1uF/25V 20% X7R 0402 RoHS  MURATA

4.Example CRC Calculation

The following routine(s) may be implemented to mimic the CRC calculation of the DWM-LJ1276.

DWM-JL1295--LJ1276-datasheet-Example-CRC-Calculation

DWM-JL1295–LJ1276-datasheet-Example-CRC-Calculation

5.Example Temperature Reading

The following routine(s) may be implemented to read the temperature and calibrate the sensor.

DWM-JL1295-LJ1276-datasheet-Example-Temperature-reading

DWM-JL1295-LJ1276-datasheet-Example-Temperature-reading

6.Packaging Information(unit:mm)

6.1 The Size of the PCB board.

DWM-JL1276-datasheet-packaging

6.2 The Size of the Shielding case

7.Recommended PCB Land Pattern (unit:mm)

DWM-JL1276-datasheet-Recommended-PCB-Land-Pattern

DWM-JL1276-datasheet-Recommended-PCB-Land-Pattern

8. Demo code

DWM-1276 DEMO

CTT180610647ENA ROHS

CTT180610647ENB REACH

DDT-R19050915-1E1 LJ1276-868 EN 301489-1-3 Report

DDT-R19050915-1E2 LJ1276-868 EN 300 220 Report 868MHz

DDT-R19050915-1E3 LJ1276-868 EN 62479 Report

 

If you want to get the samples pls visit the online shop DWM-LJ1276.

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