SX1278 LoRa RA-02 433MHz Long Range Wireless Transceiver Module
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The SX1278 LoRa RA-02 433MHz Wireless Transceiver Module is a compact long-range wireless communication module designed for reliable data transmission in IoT, embedded systems, remote monitoring, telemetry, automation, and wireless sensor applications. Based on the Semtech SX1278 LoRa transceiver, the module uses LoRa spread-spectrum modulation to provide robust wireless communication over long distances.
Operating in the 433MHz frequency range, the RA-02 provides an effective solution for projects that require long-range and low-power wireless connectivity. It communicates with microcontrollers through an SPI interface, making it suitable for popular development platforms such as Arduino, ESP32, STM32, NodeMCU, and other compatible controllers.
Its compact design and easy-to-integrate interface make the module suitable for both prototyping and embedded applications. Whether you're developing a smart agriculture system, remote sensor network, wireless data logger, industrial monitoring solution, or IoT project, the SX1278 LoRa RA-02 provides a practical way to add long-range wireless communication capabilities.
Key Features
Based on SX1278 LoRa wireless transceiver
433MHz long-range wireless communication
Uses LoRa spread-spectrum modulation
High receiver sensitivity for reliable communication
Long-range wireless data transmission
SPI communication interface
Programmable data rates up to 300 kbps
Low-power wireless communication
Compact and lightweight module design
Easy integration with microcontrollers
Compatible with Arduino, ESP32, STM32, NodeMCU, and other development boards
Suitable for IoT and wireless sensor networks
Ideal for telemetry and remote monitoring applications
Useful for DIY, educational, and embedded electronics projects
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | LoRa Wireless Transceiver Module |
| Module Model | RA-02 |
| Wireless Chip | SX1278 |
| Operating Frequency | 433MHz |
| Frequency Range | 410–525MHz |
| Communication Technology | LoRa Spread Spectrum |
| Communication Interface | SPI |
| Programmable Data Rate | Up to 300 kbps |
| Maximum Transmit Power | Approximately 18 dBm |
| Supply Voltage | 2.5V–3.7V DC |
| Typical Operating Voltage | 3.3V DC |
| Antenna Interface | IPEX |
| Module Dimensions | Approximately 17 × 16 × 3.2mm |
| Operating Temperature | -30°C to 85°C |
| Compatibility | Arduino, ESP32, STM32, NodeMCU and other compatible microcontrollers |
Applications
IoT Sensor Networks
Long-Range Wireless Communication
Smart Agriculture
Environmental Monitoring
Remote Monitoring Systems
Wireless Telemetry
Industrial Automation
Industrial Monitoring
Home Automation
Smart Home Systems
Wireless Data Logging
Remote Control Systems
Security and Monitoring Projects
Robotics
Embedded Systems
Engineering Projects
STEM Education
DIY IoT Projects
Package Includes
1 × SX1278 LoRa RA-02 433MHz Wireless Transceiver Module
Why Buy from Horizocart?
Quality-tested electronic modules
Reliable wireless communication components
Secure packaging for safe delivery
Fast shipping across India
Technical support for students and developers
Suitable for Arduino, ESP32, STM32, robotics, and IoT projects
Ideal for educational, DIY, prototyping, and embedded applications
Wide range of electronic components and IoT products available at Horizocart
Frequently Asked Questions
Q. What is the SX1278 LoRa RA-02 module used for?
The SX1278 LoRa RA-02 is used for long-range wireless data communication in IoT devices, sensor networks, telemetry systems, remote monitoring, automation, and embedded electronics projects.
Q. Can I use this module with Arduino?
Yes. The RA-02 can be interfaced with Arduino boards through its SPI communication interface. Additional wiring and suitable LoRa libraries are required for communication.
Q. Is the RA-02 compatible with ESP32?
Yes. The module can be connected to an ESP32 using SPI pins and can be used for LoRa-based wireless communication projects.
Q. What frequency does the SX1278 RA-02 use?
The RA-02 is designed for the 433MHz frequency band, with the module specification covering approximately 410–525MHz.
Q. What communication interface does the module use?
The SX1278 RA-02 communicates with a host microcontroller using an SPI interface.
Q. Is this a Wi-Fi or Bluetooth module?
No. The RA-02 is a LoRa wireless transceiver module. It does not provide Wi-Fi or Bluetooth connectivity. It is designed for long-range, low-power wireless communication using LoRa technology.
Q. What can I build with this LoRa module?
You can use the module to build wireless sensor networks, smart agriculture systems, environmental monitoring devices, remote monitoring systems, telemetry solutions, home automation projects, and other IoT applications.
Q. Does the module require an antenna?
Yes. An appropriate 433MHz antenna should be connected when operating the module for wireless transmission and reception. Always follow the module manufacturer's recommendations for antenna connection and operation.
