RFM69HCW range in open space is up to about 500m. Indoors it is audible through several walls.

The RFM69HCW uses the SPI bus to connect to a microcontroller. Several different Arduino libraries are available. The chip supports 256 networks each with up to 255 nodes, AES encryption, and data packets up to 66 bytes.

Using the RF69 library you can easily send and receive messages over the SPI bus. The library allows building a point-to-point network or a more complex one where nodes and gateways have their own addresses. The board includes the necessary voltage regulation and level shifting.

Features

• Frequency Range = Software configurable from ~240MHz to 980MHz
• Sensitivity = -118 dBm
• +17 dBm Max Output Power (Configurable)
• Data Rate = 1 to 128 kbps
• Digital RSSI
• Wake-on-radio
• Configurable packet structure
• Preamble detector
• TX and RX 64 byte FIFOs
• Low battery detector
• Temperature sensor and 8-bit ADC
• -40 to +85 °C temperature range

Specs

• Transmit\u00a0power:\u00a0-18dBm\u00a0(0.016mW) to\u00a0+20dBm\u00a0(100mW) in\u00a01dBm\u00a0steps
• Receive sensitivity: down to -120dBm at 1.2kbps
• Standby current>200uA
• Bit rates : 1.2kbps to 300kbps
• Work voltage: 5V
• Current consumption: 0.1uA sleep, 1.25mA standby, 16mA receive, 130mA transmit (max)
• Encryption: AES 128-bit (optional)
• Packet buffer (FIFO): 66 bytes

Contents

• RFM69 daughter board with soldered antenna (length 165 mm)

Links

• Library file RFM69 (zip)
• Data sheet RFM69
• Eagle files
• Elecrow Wiki link (User manual)

Note! The free ISM frequency bands in Europe are 433 MHz and 868 MHz.