Adafruit RFM95CW 915MHz LoRa Module

Sending data over long distances is like magic, and now you can be a magician with this easy-to-use module that you can solder onto your microcontroller board to add wireless LoRa connectivity on the 900 MHz ISM band.

These packet radios are simpler than WiFi or BLE; you don’t have to associate, pair, scan, or worry about connections. Simply send data whenever you like, and any other modules tuned to the same frequency, with the same encryption key, will receive it. The receiver can then send a reply back. The modules handle packetization, error correction, and can also auto-retransmit, ensuring a smooth data exchange with minimal power usage.

Ideal for Arduinos or other microcontrollers, create a sensor node network, or transmit data across a campus or town. The trade-off is you need two or more radios with matching frequencies. While WiFi and BT are commonly included in computers and phones, this 900 MHz LoRa radio works on either 868MHz or 915MHz, determined when loading the software, which can be tuned dynamically.

+20dBm LoRa packet radios offer a special radio modulation that extends much farther than RFM69s. Achieve up to 2 Km line of sight using simple wire antennas, or up to 20 Km with directional antennas and settings adjustments. Note that this product is just the radio module—it must be soldered directly to a PCB either manually or through an automated process. Compatibility is ensured with other radio boards, bonnets, wings, etc.

Benefits and Specifications:

• Packet radio with ready-to-go Arduino libraries.
• Uses the license-free ISM band: "European ISM" @ 868MHz or "American ISM" @ 915MHz.
• SX1276 LoRa® based module with SPI interface.
• +5 to +20 dBm up to 100 mW Power Output Capability, selectable via software.
• ~100mA peak during +20dBm transmit, ~30mA during active radio listening.
• Range of approximately 2Km, depending on obstructions, frequency, antenna, and power output.
• Individual radios must communicate with identical part numbers, e.g., RFM69 900 MHz with RFM69 900 MHz.