Adafruit RFM69HCW Transceiver Radio Breakout - 868 or 915 MHz - RadioFruit

Sending data over long distances is like magic, and now you can be a magician with this range of powerful and easy-to-use radio modules. The Adafruit RFM69HCW Transceiver Radio Breakout operates at 868 or 915 MHz, making it ideal for long-range communication over lower license-free frequencies. Unlike WiFi or Bluetooth, these radios allow for simple packet-based communication without pairing or connections.

This 900 MHz radio version can be used for either 868MHz or 915MHz transmission/reception, with frequency determined by software. It uses the SX1231 chip with SPI interface and offers +13 to +20 dBm power output, suitable for ranges up to approximately 500 meters in line of sight conditions, potentially reaching up to 5 km with directional antennas.

• SX1231 based module with SPI interface
• +13 to +20 dBm up to 100 mW power output (selectable in software)
• 50mA (@+13 dBm) to 150mA (@+20 dBm) transmit current, ~30mA during active listening
• Range up to ~500 meters, depending on environment and antenna
• Multipoint network creation with individual node addresses
• Encrypted packet engine with AES-128
• Ready-to-use Arduino libraries
• License-free ISM band operation: European (868 MHz) or American (915 MHz)
• Use simple wire antennas or connectors such as uFL or SMA

The module includes a 3.3V voltage regulator and level shifter allowing operation at 3-5V DC power and logic. Some soldering is required for headers and antenna wire. Check out the detailed tutorial for wiring, code examples, and more.

Technical Details:

• Size: 25.3mm x 29.3mm x 3.5mm (1.0" x 1.15" x 0.14")
• Weight: 3.4g
• Includes updated PCB with legible silkscreen
• Datasheet, EagleCAD files, schematics, and Fritzing available in the tutorial link