Adafruit Feather M0 RFM96 LoRa Radio - 433MHz - RadioFruit

The Adafruit Feather M0 RFM96 LoRa Radio (433 MHz) is a powerful and compact microcontroller board with a LoRa packet radio transceiver, designed for building flexible, low-power wireless networks that are ideal for long-range communication. This Feather combines a 433 MHz LoRa radio module with the versatile Feather M0 platform, making it perfect for projects requiring more range than Bluetooth LE or WiFi, without the high power demands.

The Feather M0 features an ATSAMD21G18 ARM Cortex M0 processor running at 48 MHz, offering 256K of flash memory and 32K of RAM, making it a significant upgrade in both performance and memory compared to traditional 8-bit microcontrollers. It includes built-in USB-to-Serial capabilities, eliminating the need for a separate FTDI chip for programming and debugging.

For portable applications, the board supports 3.7V lithium polymer (LiPo) batteries with integrated charging. Whether running on battery or USB power, the Feather automatically switches between them for seamless operation, and it even has a voltage divider for monitoring battery levels.

Key Features:

• LoRa Radio Module (433 MHz) for long-range communication (up to 1.2 miles/2 km line of sight with default settings; up to 20 km with tweaked settings and directional antennas)
• SX127x LoRa® chipset with SPI interface, great for sending small data packets over long distances (much farther than typical 2.4 GHz radios like WiFi and Bluetooth)
• Selectable power output: +5 to +20 dBm (up to 100 mW), with a peak current draw of ~120mA during transmission and low power consumption (~300uA during sleep)
• Simple wire antenna or uFL connector for external antenna options
• USB native support with a built-in bootloader for easy programming with Arduino IDE
• 20 GPIO pins, 8 PWM pins, 10 analog inputs, and 1 analog output for flexible project design
• Built-in 100mA LiPo charger with a charging status indicator LED
• Compact size: 50.8mm x 23mm x 7.2mm (2.0" x 0.9" x 0.3")
• Lightweight: 5.6g (0.2oz)
• Easy integration: Comes fully assembled with headers for breadboard use and simple antenna setup (antenna and LiPo battery not included)

This Feather M0 LoRa Radio (433 MHz) is perfect for creating long-range wireless networks, such as sensor nodes or remote data loggers, where a low-power solution with extensive range is essential. The radio module uses the license-free ISM bands (433 MHz in Europe and 900 MHz in the Americas) for flexible global usage.

Whether you’re building a remote monitoring system or a low-power sensor network, this board provides a solid foundation for reliable wireless communication without the limitations of traditional short-range protocols.

Technical Details:

• Dimensions: 50.8mm x 23.0mm x 7.2mm / 2.0" x 0.9" x 0.3"
• Weight: 5.6g / 0.2oz
• Power: 300uA in full sleep mode, 120mA peak during transmission
• Operating Frequency: 433 MHz LoRa
• Power Output: +5 to +20 dBm (up to 100 mW)
• Range: Up to 2 km line of sight (up to 20 km with enhancements)
• Antenna: Simple wire antenna or uFL connector for external antennas

This Feather board offers an excellent combination of performance, portability, and long-range communication for your next wireless project!