The Adafruit Radio FeatherWing RFM69HCW @ 900 MHz adds short-to-medium range packet radio to any Feather board. Based on the SX1231 transceiver, this FeatherWing provides FSK packet radio with built-in AES-128 encryption, auto-retransmit, and multipoint networking at 868/915 MHz (software configurable).

With +13 to +20 dBm transmit power (up to 100 mW), the RFM69HCW can reach approximately 500 m line of sight with a simple wire antenna, and potentially up to 5 km with directional antennas and optimised settings. Pair it with a Wi-Fi, cellular, or Bluetooth Feather to bridge 900 MHz radio to the internet.

Key Features

• SX1231 FSK Packet Radio – FSK/GFSK/MSK/GMSK/OOK modulation at 868/915 MHz
• +13 to +20 dBm Transmit Power – Up to 100 mW, selectable in software
• ~500 m Range – Line of sight with wire antenna; up to 5 km with directional antennas
• AES-128 Encryption – Built-in hardware encryption engine
• Auto-Retransmit – Automatic packet retransmission for reliability
• Multipoint Networking – Individual node addresses for creating networks
• SPI Interface – Connects to Feather via SPI bus
• 50–150 mA TX Current – 50 mA at +13 dBm, 150 mA at +20 dBm
• Arduino Libraries – Ready-to-go with tested support

Also Consider

• Radio FeatherWing RFM69 @ 433 MHz – Same radio at 433 MHz for European ISM band

Ideal For

• Wireless sensor networks
• Remote control and telemetry
• Bridging 900 MHz radio to internet via Wi-Fi/cellular Feathers
• Encrypted point-to-point or multipoint data links

Resources

• Adafruit Radio FeatherWing Learning Guide