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.
