The Ra-01H is a compact LoRa spread-spectrum wireless module based on the Semtech SX1276 chipset. Designed for long-range, low-power communication, it operates in the 868 MHz band and uses an SPI interface for flexible system integration.
This module is optimized for industrial and IoT applications requiring stable transmission, strong anti-interference performance, and low power consumption. It supports external antennas, making it suitable for deployments where extended communication distance is required.
Key Features
Semtech SX1276 LoRa spread-spectrum RF chipset
868 MHz operating frequency (EU band)
SPI communication interface
Low power consumption for battery-powered devices
High receiver sensitivity and strong anti-interference capability
Compact SMD-16 package for embedded designs
External antenna support for extended range
Technical Specifications
Parameter
Specification
Model
Ra-01H
Chipset
Semtech SX1276
Frequency Range
803–930 MHz (Typical: 868 MHz)
Communication Interface
SPI
Supply Voltage
3.3 V
Data Rate
Up to 300 kbps
Transmit Current (868 MHz)
103 mA
Receive Current
12.15 mA
Standby Current
1.6 mA
Antenna Type
External spring antenna
Package
SMD-16
Dimensions
17 × 16 × 3.2 mm
Operating Temperature
-30 °C to +85 °C
Storage Conditions
-40 °C to +90 °C, <90% RH
Weight
0.46 g
Typical Applications
Automatic meter reading systems
Security and alarm systems
Remote irrigation and agricultural monitoring
Industrial IoT communication nodes
Smart city and infrastructure monitoring
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