LoRa RF 433Mhz Transceiver Module SX1278 (Long Range)

This module is a type of low cost RF front-end transceiver module based on SX1278 from Semtech Corporation. It keeps the advantages of RFIC SX1278 but simplifies the circuit design. The high sensitivity (-136dBm) in LoRa modulation and 20dBm high power output make the module suitable for low range and low data rate applications.

The  module consists of RFIC SX1278, thin SMD crystal and antenna matching circuit. The antenna port is well matched to standard 50 Ohm impedance. Users don't need to spend time in RF circuit design and choose suitable antennas for different applications. The module operates at 1.8~3.6V with extra low standby current which makes it suitable for battery powered-up applications. Because it is purely hardware module and it adopts ±10ppm crystal which the resolution of it places a important role in calculating spreading factor, bandwidth, etc.

Applications

• Remote Control
• Remote AMR
• Home Automation
• Personal data logger
• Wireless sensor network
• Remote Keyless entry
• Wireless PC peripherals

Features

• High sensitivity (-136dBm) in LoRa modulation and 20dBm high power output make the module suitable for low range and low data rate applications.
• 127dB dynamic Range RSSI
• Super anti-jamming (channel rejection ratio: 56db)
• Excellent blocking immunity
• SPI Data Interface
• Preamble detection
• Automatic RF sense and CAD monitor
• Built-in bit synchronizer for clock recovery
• Packet engine up to 256 bytes with CRC
• Build-in temperature sensor
• Ultra-long distance transmission open up to 5KM (Depends on antenna)

Specifications

• Frequency Range: 433MHz
• Modulation: FSK / GFSK / MSK / LoRa
• Sensitivity: -136dBm
• Output Power: +20dBm
• Data Rate: <300 kbps
• Standby current: ≤ 1uA
• Supply voltage: 1.8~3.6VDC
• Working Temperature: -40°C ~+80°C

Documents

• Datasheet