RFM95W-915S2
Overview
The RFM95W-915S2 is a compact LoRa radio module from HopeRF that uses the Semtech SX1276 transceiver. It operates in the 915 MHz ISM band, exposes an SPI host interface, and supports up to +20 dBm TX output. The module provides an antenna pad for easy RF connection and is intended for long-range low-power wireless links.
Why Choose This Part
Practical reasons to choose this module include a proven SX1276 LoRa front-end with a simple SPI host interface and up to +20 dBm transmit power for extended range. Its compact module form with an antenna pad simplifies RF integration compared with using a raw transceiver IC, and broad community and library support speeds development.
Applications
Getting Started
Use a 3.3 V host and connect the module SPI pins plus reset and DIO/IRQ lines; level shifting is required if your host is 5 V. Popular software options include the Arduino IDE or PlatformIO with libraries such as RadioHead or the Arduino-LoRa library (Sandeep Mistry) that support SX1276-based modules. Fit a proper 915 MHz antenna and verify local regulatory requirements (FCC/region). HopeRF breakout boards and community examples accelerate first tests.
