The SparkFun Pro RF combines a SAMD21 ARM Cortex-M0+ microcontroller with an RFM95W LoRa radio module operating in the 915 MHz ISM band. This compact board provides long-range wireless data communication with LoRa capabilities, making it well suited for IoT sensor networks and remote telemetry applications.

The board includes a wire antenna with stress-relief hole for physically demanding installations, plus a U.FL connector for external antennas when greater range is needed. A 2-pin JST connector and on-board charging circuit support LiPo battery power, and the integrated power switch allows the battery to charge via Micro-USB while the board is off.

Key Features

• SAMD21 Microcontroller – 32-bit ARM Cortex-M0+ at 48 MHz, Arduino-compatible
• RFM95W LoRa Radio – 915 MHz ISM band for long-range point-to-point communication
• LoRaWAN Support – Jumper-selectable LoRaWAN mode for distributed sensor networks
• Dual Antenna Options – Wire antenna included, plus U.FL connector for external antennas
• Qwiic Connector – I²C interface for adding sensors and actuators without soldering
• LiPo Battery Support – JST connector with on-board charge circuit
• Power Switch – On/off control; charges battery when off and USB connected
• Ground-Paired Pins – Every I/O pin accompanied by a ground connection

Ideal For

• Long-range IoT sensor networks
• Remote environmental monitoring
• LoRaWAN node deployments
• Wearable and embedded wireless projects

Package Contents

• 1× SparkFun Pro RF (SAMD21 + RFM95W, 915 MHz, black PCB)

Resources

• Hookup Guide