SX1278 LoRa Module Ra- 02 433MHZ Wireless Spread Spectrum Transmission
- Product SKU: R1224
- Category: Advanced Builds, Arduino Ecosystem, ESP32 & NodeMCU Ecosystem, Wireless & IOT, Wireless Module, Wireless-Iot, ₹100 to ₹500
SX1278 LoRa Module Ra-02 433MHz Wireless Spread Spectrum Transmission
The SX1278 LoRa module Ra-02 is engineered for long-range wireless communication, leveraging the SEMTECH SX1278 wireless transceiver. This module employs sophisticated LoRa spread spectrum technology, enabling a communication range that reaches up to 10,000 metres. It is equipped with remarkable anti-jamming capabilities and features an air wake-up consumption mode.
Designed primarily for extensive spread spectrum communication, the SX1278 LoRa RF module exhibits low current consumption. It offers high sensitivity at -148 dBm and a power output of +20 dBm.
In contrast to conventional modulation technologies, LoRa modulation provides considerable advantages, particularly in blocking and selection, interference handling, and power efficiency.
Features
LoRa ™ Spread Spectrum modulation technology
Consistent RF power output at +20 dBm (100 mW) across voltage variations
Half-duplex SPI communication capability
Supports various modulation modes: FSK, GFSK, MSK, GMSK, LoRa ™, and OOK
Automatic RF signal detection, CAD mode, and high-speed AFC
Packet engine with CRC support for data packets up to 256 bytes
Compact dual-row stamp-hole patch design
Shielded construction for added durability
Includes a spring antenna
Applications:
Long-range wireless communication module based on the LoRa platform
Utilises SPI communication protocol and necessitates an antenna for effective RF communication
Operates at 3.3V and features 16 pins (8 on each side)
Compatible with microcontrollers like Arduino Uno and Nano
Commonly employed in Arduino & IoT projects, smart agriculture, smart city initiatives, and industrial automation, thanks to its extended communication range and minimal power consumption
SX1278 LoRa Module (RA-02 433MHz) – Arduino Connection & Wiring Guide
1. Important Notes Before Wiring
The SX1278 module functions at 3.3V logic and supply; it is not tolerant of 5V. Connecting 5V may result in damage to the module.
Attach a suitable antenna to the module's RF output to ensure reliable communication and prevent damage.
Maintain a common ground between the Arduino and the LoRa module to ensure dependable communication.
2. Wiring Table (Arduino UNO Example)
LoRa Module Pin |
Arduino UNO Pin |
Notes |
|---|---|---|
VCC (3.3V) |
3.3V |
Ensure a stable 3.3V supply; some boards may need an external regulator. |
GND |
GND |
Common reference for both devices. |
NSS / CS |
D10 |
Chip select for SPI communication. |
DIO0 |
D2 |
Interrupt pin for packet-ready notifications. |
SCK |
D13 |
SPI clock line. |
MISO |
D12 |
SPI Master-In-Slave-Out. |
MOSI |
D11 |
SPI Master-Out-Slave-In. |
SX1278 LoRa Module Ra-02 433MHz Wireless Spread Spectrum Transmission
The SX1278 LoRa module Ra-02 is engineered for long-range wireless communication, leveraging the SEMTECH SX1278 wireless transceiver. This module employs sophisticated LoRa spread spectrum technology, enabling a communication range that reaches up to 10,000 metres. It is equipped with remarkable anti-jamming capabilities and features an air wake-up consumption mode.
Designed primarily for extensive spread spectrum communication, the SX1278 LoRa RF module exhibits low current consumption. It offers high sensitivity at -148 dBm and a power output of +20 dBm.
In contrast to conventional modulation technologies, LoRa modulation provides considerable advantages, particularly in blocking and selection, interference handling, and power efficiency.
Features
LoRa ™ Spread Spectrum modulation technology
Consistent RF power output at +20 dBm (100 mW) across voltage variations
Half-duplex SPI communication capability
Supports various modulation modes: FSK, GFSK, MSK, GMSK, LoRa ™, and OOK
Automatic RF signal detection, CAD mode, and high-speed AFC
Packet engine with CRC support for data packets up to 256 bytes
Compact dual-row stamp-hole patch design
Shielded construction for added durability
Includes a spring antenna
Applications:
Long-range wireless communication module based on the LoRa platform
Utilises SPI communication protocol and necessitates an antenna for effective RF communication
Operates at 3.3V and features 16 pins (8 on each side)
Compatible with microcontrollers like Arduino Uno and Nano
Commonly employed in Arduino & IoT projects, smart agriculture, smart city initiatives, and industrial automation, thanks to its extended communication range and minimal power consumption
SX1278 LoRa Module (RA-02 433MHz) – Arduino Connection & Wiring Guide
1. Important Notes Before Wiring
The SX1278 module functions at 3.3V logic and supply; it is not tolerant of 5V. Connecting 5V may result in damage to the module.
Attach a suitable antenna to the module's RF output to ensure reliable communication and prevent damage.
Maintain a common ground between the Arduino and the LoRa module to ensure dependable communication.
2. Wiring Table (Arduino UNO Example)
LoRa Module Pin |
Arduino UNO Pin |
Notes |
|---|---|---|
VCC (3.3V) |
3.3V |
Ensure a stable 3.3V supply; some boards may need an external regulator. |
GND |
GND |
Common reference for both devices. |
NSS / CS |
D10 |
Chip select for SPI communication. |
DIO0 |
D2 |
Interrupt pin for packet-ready notifications. |
SCK |
D13 |
SPI clock line. |
MISO |
D12 |
SPI Master-In-Slave-Out. |
MOSI |
D11 |
SPI Master-Out-Slave-In. |
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Last updated: January 2026
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