Ai-Thinker Ra-02 LoRa Spread Spectrum Wireless Module

The Ai-Thinker Ra-02 LoRa wireless module offers long-range, low-power wireless communication for IoT applications. Based on the Semtech SX1278 transceiver, this compact SMD module utilizes advanced LoRa™ spread spectrum technology for stable data transmission up to 10 km line-of-sight. It features high receiver sensitivity, robust anti-interference performance, and supports multiple modulation modes for flexible deployment in a variety of environments. The module includes a convenient IPEX connector for antenna integration and communicates with microcontrollers via a half-duplex SPI interface.​

Features:

• LoRa™ spread spectrum modulation technology for extended range.​
• Frequency range: 410–525 MHz (typically used at 433/470 MHz).​
• High receiver sensitivity down to -141 dBm.​
• Constant RF output power: +18 dBm ±1 dBm.
• Supports FSK, GFSK, MSK, GMSK, LoRa™, and OOK modulation.​
• Half-duplex SPI interface.
• Programmable bit rates up to 300 kbps.
• Small footprint: 17 x 16 x 3.2 mm SMD package.​
• IPEX antenna connector for reliable RF performance.
• Robust anti-interference and air wake-up capability.
• Operating voltage: 2.5V–3.7V (typical 3.3V).​
• Low power consumption and wide operating temperature (-30°C to +85°C).

Specifications:

• Model: Ra-02
• Chipset: Semtech SX1278
• Frequency Range: 410 MHz – 525 MHz
• Transmit Power: Up to +18 dBm
• Receiver Sensitivity: -141 dBm (SF12)​
• Interface: SPI (half-duplex)
• Bit Rate: Up to 300 Kbps
• Antenna Interface: IPEX (U.FL) connector
• Package: SMD-16, 17 x 16 x 3.2 mm
• Power Consumption: TX 93–97 mA; RX 12.15 mA; Standby 1.5–1.6 mA
• Operating Temperature: -30°C ~ +85°C
• Supply Voltage: 2.5 – 3.7V
• Storage Temp: -40°C ~ +90°C, <90%RH
• Weight: 10g

Application:

• Smart meter reading (AMR).​
• Home and building automation.​
• Security and alarm systems.​
• Wireless sensor networks.​
• Remote irrigation control.​
• Industrial monitoring and long-range IoT gateways.​

Package Includes:

• 1 x Ai-Thinker Ra-02 LoRa Spread Spectrum Wireless Module.​