SX1278 LoRa RF Module

4 December 2018 - 0 Comments

Lora-SX1278-module

Lora-SX1278-Pinout

Pin Description:

Pin Number	Pin Name	Description
1,2,9,16	Ground	Ground pin of the Module
3	3.3V	Input Supply voltage
4	Reset	Resets the Module
5	DIO 0	Digital I/O – 0
6	DIO 1	Digital I/O – 1
7	DIO 2	Digital I/O – 2
8	DIO 3	Digital I/O – 3
10	DIO 4	Digital I/O – 4
11	DIO 5	Digital I/O – 5
12	SCK	SPI – Clock Input
13	MISO	SPI – Data Out
14	MOSI	SPI – Data In
15	NSS	SPI – Chip Select

Features:

LoRa Modem
Operating Voltage: 3.3V
Operating Frequency: 433Mhz
Half-Duplex SPI communication
Modulation Technique FSK,GFSK,MSK,GMSK,LoRa
Packet size: 256 bytes
Sensitivity: -148db

Note: Complete Technical Details can be found at the datasheet give at the end of this page.

Alternative RF Wireless modules: NRF24L01, 433MHz RF, XBee

Setting up LoRa SX1278:

The LoRa SX1278 works with SPI communication protocol so it can be used with any microcontroller that supports SPI. It is mandatory to use an Ariel (antenna) along with the module else it might damage the module permanently. The module should be powered only with 3.3V and the SPI line can be connected to uP/uC as shown in the image below.

Lora circuit diagram

To communicate with the module some standard libraries are also available for Arduino like LoRa by Sandeep and other platforms. The module comes in a surface mount style package hence care should be taken while soldering. It is also a common practice to solder wires and pins with the module to use it as through hole module.

Applications: