Adafruit Feather M0 RFM96 LoRa Radio - 433MHz

The Adafruit Feather M0 RFM96 LoRa Radio is a compact and feature-rich development board that combines an ATSAMD21 Cortex M0+ microcontroller with an RFM96 LoRa 433MHz module, offering long-range, low-power wireless communication. Perfect for IoT, telemetry, remote sensing, and automation, it includes built-in USB and LiPo battery charging, making it ideal for portable and battery-powered projects.

The LoRa module provides high interference immunity, supports ultra-long-range communication, and operates in the 433MHz ISM band. With its Feather form factor, this board integrates seamlessly with FeatherWings for easy expansion.

Key Features

• ATSAMD21 Cortex M0+ (48MHz, 32-bit ARM) – The same chip used in the Arduino Zero.
• RFM96 LoRa Module (433MHz ISM band) – Long-range, low-power radio communication.
• 256KB Flash & 32KB RAM – Sufficient storage for complex applications.
• Built-in USB & LiPo Battery Charging – Rechargeable via micro-USB with a 100mA charging circuit.
• 3.3V Logic & Power – Compatible with most sensors and modules.
• I2C, SPI, UART Support – Multiple communication options for peripherals.
• Low-Power Mode Support – Extends battery life for remote applications.
• Feather Form Factor – Compatible with FeatherWings for easy expansion.

Pinout & Board Specifications

• Digital I/O Pins: 9 (D5–D13, all 3.3V logic).
• Analog Input Pins: 6 (A0–A5, 12-bit ADC).
• PWM Output Pins: 8 (D5–D13).
• SPI Interface: MOSI, MISO, SCK (D10, D11, D13).
• I2C Interface: SDA (A4), SCL (A5).
• UART (Serial1): TX (D6), RX (D5).
• LoRa Module Control Pins:
  • CS (Chip Select): D8
  • RST (Reset): D4
  • IRQ (Interrupt): D3
• Power Input: USB 5V or 3.7V LiPo battery.
• Charging Circuit: 100mA LiPo charger with status LED.
• Current Consumption:
  • Sleep mode: ~100µA
  • Transmit: ~120mA (at +20dBm)
  • Receive: ~10-20mA
• Antenna Connection: u.FL connector or solder pad for wire antenna.
• Dimensions: 51mm x 23mm x 8mm.
• Weight: 6.4g.

LoRa Radio Specifications

• Frequency: 433MHz ISM band (suitable for Europe & Asia).
• Transmit Power: Up to +20dBm (100mW).
• Sensitivity: Down to -148dBm for long-range performance.
• Data Rate: 300bps to 37.5kbps.
• Modulation: LoRa spread spectrum with forward error correction.

Ideal for IoT, smart agriculture, remote monitoring, environmental sensors, and long-range data communication, the Feather M0 RFM96 LoRa (433MHz) is a compact, efficient, and powerful solution for long-range wireless applications!