A long-range, low-data-rate radio modem pair based on the Semtech SX1276 LoRa transceiver. Operating on the 433 MHz ISM band, these modules deliver robust wireless links with excellent sensitivity and low power consumption — ideal for remote sensing and IoT applications.

The modules support two operating modes: Standard mode for transparent serial data passthrough, and Star network mode where one module acts as a central node communicating bidirectionally with multiple node modules. Configuration is done via TTL serial commands.

Key Features

• LoRa Spread Spectrum – Long-range communication on the 433 MHz ISM band
• −148 dBm Receive Sensitivity – Excellent range in noisy environments
• ≤20 dBm Output Power – Up to 100 mW transmit power
• Ultra-Low Sleep Current – ≤3.9 µA for battery-powered deployments
• Dual Operating Modes – Transparent serial modem or star network topology
• Serial Wake-Up & Wireless Wake-Up – Flexible power management
• Wide Voltage Range – 2.1–3.6 V (battery) or 4.5–5.5 V
• TTL Serial Interface – 1,200–57,600 bps (default 9,600)
• Operating Temperature – −40°C to +80°C
• Dimensions – 34.2 × 18.4 mm

Ideal For

• Long-range wireless sensor networks
• IoT and remote monitoring projects
• Point-to-point serial data links
• Star network topologies with a central hub

Package Contents

• 2× LoRa Radio Module – 433 MHz
• 2× 433 MHz Antenna (SMA-Male connector)