DWM-LJ1295 is LoRa transceiver RF module which build by Sx1276 chipset for more details about the Sx1276 you can visit the link: sx1276datasheet .

1.DWM-LJ1295 PIN Diagram

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

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-LJ1295.

5.Example Temperature Reading

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

6.Packaging Information

7.Recommended PCB Land Pattern

8. Demo code

 DWM-LJ1295 Demo code

CTT180610647ENA ROHS

CTT180610647ENB REACH

If you want to get the samples pls visit the online shop DWM-LJ1295.