Ai-Thinker LoRa Ra-02 433MHz Long Range Spread Spectrum RF Wireless Module

The Ai-Thinker LoRa Series Ra-02 Spread Spectrum Wireless Module is a long-range, low-power RF communication module based on the Semtech SX1278 / SX1276 LoRa transceiver technology. Designed for IoT, smart agriculture, telemetry, remote monitoring, and wireless sensor applications, the Ra-02 module offers robust communication across long distances with excellent interference immunity and minimal power consumption. Operating in the 433MHz ISM band, this module supports LoRa spread spectrum modulation, allowing extended communication range and high link reliability. With an SPI interface and small form factor, the Ra-02 integrates easily with microcontrollers like Arduino, ESP32, STM32, and Raspberry Pi, making it ideal for embedded wireless systems.

Features:

1. Based on Semtech LoRa RF transceiver (SX1278 / SX1276)
2. Spread spectrum LoRa modulation for long-range communication
3. 433MHz ISM frequency band operation
4. High receiver sensitivity for robust signal reception
5. Low power consumption for battery-operated systems
6. Supports multiple modulation modes: LoRa, FSK, GFSK, OOK
7. SPI interface for easy microcontroller integration
8. Compact SMD module suitable for embedded designs
9. Excellent anti-interference and stable RF performance

Specifications:

1. Model: Ra-02 (Ai-Thinker LoRa Series)
2. Chipset: SX1278 / SX1276 (LoRa RF Transceiver)
3. Frequency Band: 410–525 MHz (optimized for 433MHz)
4. Modulation Modes: LoRa / FSK / GFSK / OOK
5. Output Power (Max): Up to +20 dBm
6. Receiver Sensitivity: Up to -148 dBm (LoRa mode)
7. Data Rate: 0.3 kbps – 37.5 kbps (LoRa mode)
8. Interface: SPI (3.3V logic)
9. Operating Voltage: 1.8V – 3.7V (typical 3.3V)
10. Transmit Current: ~120 mA (max at high power)
11. Receive Current: ~10–12 mA
12. Sleep Mode Current: < 1 µA
13. Antenna Connector: On-board pad (IPEX/U.FL optional)
14. Operating Temperature: -40°C to +85°C
15. Module Type: SMD Wireless RF Transceiver

Package Includes:

1 × Ai-Thinker LoRa Ra-02 433MHz Long Range Spread Spectrum RF Wireless Module