Microchip Technology

RN2903A-I/RM103  

RF Transceiver Modules and Modems

RN2903A-I/RM103 Description

The RN2903A-I/RM103 from Microchip Technology is a high-performance LoRa™-enabled RF transceiver module designed for ISM band applications below 1GHz (902–928MHz). This surface-mount module integrates a LoRa™ modem, supporting FSK and GFSK modulation with a data rate of up to 300kbps and an output power of 18.5dBm. Operating within a 2.1V–3.6V supply range, it is optimized for low-power, long-range wireless communication in industrial and IoT applications. The module features a UART interface for seamless integration with microcontrollers and is delivered in a compact, castellation-style package (antenna not included). Compliant with RoHS3 and REACH, it meets stringent environmental and regulatory standards.

RN2903A-I/RM103 Features

• LoRa™ Protocol: Enables long-range, low-power communication ideal for IoT and M2M networks.
• High Output Power (18.5dBm): Ensures robust signal transmission in challenging environments.
• Wide Voltage Range (2.1V–3.6V): Supports battery-operated and low-power designs.
• Flexible Modulation (FSK/GFSK): Adaptable to diverse communication requirements.
• UART Interface: Simplifies integration with host systems.
• Compact SMD Module: Space-efficient design with castellation for antenna connection.
• Regulatory Compliance: ROHS3, REACH, ECCN 5A992C, and HTSUS 8517.62.0090 certified.
• Firmware Version 1.0.3: Provides stable and optimized performance.

RN2903A-I/RM103 Applications

• Smart Agriculture: Remote sensor networks for soil monitoring and irrigation control.
• Industrial IoT (IIoT): Machine-to-machine communication in factories and warehouses.
• Smart Cities: Street lighting, waste management, and environmental monitoring.
• Asset Tracking: Long-range tracking of vehicles, containers, and equipment.
• Home Automation: Secure, low-power connectivity for smart home devices.

Conclusion of RN2903A-I/RM103

The RN2903A-I/RM103 stands out as a reliable, high-performance LoRa™ module for low-power, long-range wireless applications. Its 18.5dBm output power, flexible modulation schemes, and regulatory compliance make it ideal for industrial, agricultural, and smart city deployments. With Microchip’s proven LoRa™ technology, this module offers a future-proof solution for developers seeking scalable, energy-efficient connectivity.

RN2903A-I/RM103 Documents

Download datasheets and manufacturer documentation for RN2903A-I/RM103

Errata :

RN2903 Errata, Clarification      

PCN Assembly/Origin :

RN2903A-I/RMxxx 13/Jul/2021      

Datasheets :

RN2903 Datasheet      

Software Download :

RN2903 Firmware v1.0.3       LoRa Technology Mote Source Code      

Reference Design Library :

DV164140-2: 915 MHz Transceiver; LoRaMote (LoRaWAN")      

Design Resources :

RN2903 Development Tool Selector      

HTML Datasheet :

RN2903 Datasheet      

PCN Design/Specification :

RN2903 30/Jun/2021       Datasheet 23/Nov/2022      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH