Description

Product Title

Ai-Thinker Ra-02 LoRa SX1278 433MHz Long Range Wireless Transceiver Module

Product Description

The Ai-Thinker Ra-02 is a compact long-range wireless communication module based on the Semtech SX1278 LoRa transceiver. It is designed for reliable, long-distance, low-power wireless data communication and can be used with Arduino, ESP32, STM32 and other 3.3V microcontrollers. The module communicates with a host controller through an SPI interface and supports LoRa as well as several conventional modulation modes.

Key Features
Ai-Thinker Ra-02 LoRa module
Based on Semtech SX1278
410–525 MHz frequency range; commonly used at 433 MHz
LoRa spread-spectrum communication
Up to +20 dBm RF output power
High receiver sensitivity, down to approximately -140 dBm depending on operating conditions
Half-duplex SPI interface
Programmable data rate up to 300 kbps
Supports FSK, GFSK, MSK, GMSK, LoRa and OOK modulation
CRC-supported packet engine up to 256 bytes
Compact 17 × 16 mm module
IPEX/U.FL antenna connector
Suitable for low-power wireless and IoT applications
Technical Specifications
Specification Details
Brand Ai-Thinker
Model Ra-02
RF Chip SX1278
Frequency Range 410–525 MHz
Typical Frequency 433 MHz
Communication LoRa
Interface SPI
Supply Voltage 2.5–3.7V
Typical Voltage 3.3V
Maximum TX Power Up to +20 dBm
Receiver Sensitivity Down to approx. -140 dBm
Maximum Programmable Bit Rate Up to 300 kbps
Antenna Connector IPEX / U.FL
Package SMD-16
Module Size Approx. 17 × 16 × 3.2 mm
Operating Temperature Approx. -30°C to +85°C

The module is a 3.3V device, so appropriate voltage-level interfacing should be used when connecting it to 5V logic systems.

Applications
Long-range wireless sensor networks
IoT projects
Smart agriculture
Remote monitoring
Weather monitoring systems
Remote irrigation systems
Home and building automation
Security and alarm systems
Wireless data logging
Industrial monitoring
Arduino and ESP32 wireless projects
Meter reading systems
Package Includes

1 × Ai-Thinker Ra-02 LoRa SX1278 Module

Brand: Ai-Thinker
Model: Ra-02
Chip: SX1278
Frequency: 433 MHz class
Interface: SPI
Website: Kazi Tech BD