Ai Thinker LoRa Ra-02 SX1278 Module

The Ai Thinker LoRa Ra-02 SX1278 433MHz Wireless Spread Spectrum Transmission Module is a wireless module that allows devices to communicate with each other over long distances. It uses advanced technology called LoRa spread spectrum, which can transmit signals up to 10,000 meters away. This module is resistant to interference and has a feature that conserves power when not in use. It can be used in various applications like reading counters, controlling smart homes, and triggering alarm systems.

The Ra-01 module, part of the LoRa series developed by AI-THINKER Technology, is designed for long-range communication. It uses a special chip called SX1278 RF module, which helps save energy. The chip uses LoRa modulation technology developed by SEMTECH, allowing it to transmit signals over long distances with high reliability. Compared to other technologies, LoRa modulation is better at dealing with interference and distance limitations.

Key Features:

• LoRa Spread Spectrum modulation technology
• Constant RF power output at +20dBm (100mW) regardless of voltage fluctuations
• High sensitivity: down to -148dBm
• Half-duplex SPI communication
• Programmable bit rates up to 300kbps
• Supports FSK, GFSK, MSK, GMSK, LoRa, and OOK modulation modes
• 127dB RSSI dynamic range
• Automatic RF signal detection, CAD model, and very high-speed AFC
• Packet engine with CRC support for up to 256 bytes
• Compact dual-row stamp-hole patch package with shielded housing

Pinout:

Circuit With Arduino

Specifications:

• Wireless Standard: 433MHz
• Frequency range: 420 – 450MHz
• Interface: SPI/GPIO
• Operating Voltage: 1.8 – 3.7V (default 3.3V)
• Operating Current: Receive: less than 10.8mA (LnaBoost closed, Band 1); Transmit: less than 120mA (+20dBm); Sleep mode: 0.2uA
• Operating Temperature: -40 to +85 degrees Celsius
• Pin Pitch: 2.0mm
• Communication Distance: Up to 10 kilometers in an open area

Package Includes: 1 x LoRa Series Ra-02 Spread Spectrum Wireless Module

For more detailed information, please refer to the LoRa Series Ra-02 Datasheet.