Ai-Thinker Ra-02 LoRa Spread Spectrum Wireless Module (SX1278 433MHz RF Transceiver)

The Ai-Thinker Ra-02 LoRa Wireless Module is a compact long-range RF transceiver designed for low-power wide-area network (LPWAN) and Internet of Things (IoT) applications. Based on the Semtech SX1278 LoRa transceiver, the module utilizes LoRa spread spectrum modulation to provide reliable long-distance wireless communication with excellent sensitivity, low power consumption, and strong immunity to interference. Operating in the 433MHz ISM frequency band, the Ra-02 is ideal for applications requiring stable wireless data transmission over several kilometers in line-of-sight conditions.

The module communicates through a standard SPI interface, making it easy to integrate with Arduino, ESP32, STM32, Raspberry Pi, PIC, AVR, and other embedded development platforms.

Key Features -

• Based on Semtech SX1278 LoRa transceiver IC

• Long-range LoRa spread spectrum communication

• Operates in the 433MHz ISM frequency band

• Low power consumption for battery-operated devices

• High receiver sensitivity for extended communication range

• Excellent anti-interference performance

• SPI interface for easy microcontroller integration

• Compact RF module with castellated pads

• Suitable for IoT, telemetry, and remote monitoring

• Compatible with Arduino, ESP32, STM32, Raspberry Pi, and other controllers

Specifications -

• Product type - LoRa Wireless Transceiver Module

• Model - Ra-02

• Brand - Ai-Thinker

• RF Chip - Semtech SX1278

• Modulation - LoRa Spread Spectrum, FSK, GFSK, OOK (Chip Supported)

• Frequency band - 433MHz ISM Band

• Communication interface - SPI

• Operating voltage - 1.8V to 3.7V DC

• Output power - Up to +20dBm (Configuration Dependent)

• Receiver sensitivity - Up to -148dBm (Configuration Dependent)

• Package / Mounting type - SMD RF Module

Applications -

• IoT devices

• Smart agriculture systems

• Wireless sensor networks

• Environmental monitoring

• Industrial automation

• Smart metering systems

• Remote telemetry

• Home automation

• Asset tracking systems

• Long-range embedded communication projects