The RFM97CW is a sub-GHz LoRa/FSK transceiver module operating at 915 MHz, based on the Semtech SX1276 IC. With receiver sensitivity down to −138 dBm (at BW = 125 kHz, SF = 12), it is well suited for long-range, low-power wireless applications such as IoT sensor networks, remote monitoring, and telemetry.

The module operates from 1.8–3.7 V with ultra-low sleep current as low as 160 nA, making it ideal for battery-powered deployments. Communication is via a 4-wire SPI interface, and the module supports fully automatic independent working mode and duty-cycle operation for power-efficient listening.

Key Features

• LoRa Modulation – Long-range, low-power wireless communication
• SX1276 IC – Proven Semtech LoRa transceiver core
• 915 MHz Operating Frequency – Australian ISM band compatible
• High Sensitivity – −138 dBm at BW = 125 kHz, SF = 12
• Ultra-Low Sleep Current – 160 nA (duty cycle off), 600 nA (duty cycle on)
• 4-Wire SPI Interface – Simple integration with microcontrollers
• Duty Cycle and Channel Listening – Power-efficient receive modes

Specifications

• Internal IC – Semtech SX1276
• Frequency – 915 MHz
• Modulation – LoRa / FSK
• Data Rate – 0.018–37.5 kbps
• Sensitivity – −138 dBm (BW = 125 kHz, SF = 12)
• Supply Voltage – 1.8–3.7 V
• Receive Current – 12.5 mA (BW = 125 kHz)
• Sleep Current – 160 nA (duty cycle off) / 600 nA (duty cycle on)
• Interface – 4-wire SPI

Ideal For

• Long-range IoT sensor networks
• Remote monitoring and telemetry
• Battery-powered wireless nodes
• LoRaWAN gateway and end-device projects

Package Contents

• 1× RFM97CW LoRa transceiver module (915 MHz)

Resources

• RFM97CW Datasheet (PDF)