Adafruit RFM69HCW Transceiver Radio Bonnet - 868 or 915 MHz

The latest Raspberry Pi models come with inherent WiFi and Bluetooth capabilities. Enhance them further with the Adafruit Radio Bonnets, which allow you to extend your device's communication range with a sub-GHz radio transceiver.

This add-on attaches directly to your Raspberry Pi, offering a long-distance communication solution to remote, battery-powered nodes or for setting up seamless Internet gateways. The module includes a 128x32 OLED display for status updates and three buttons to customize your interface or send test messages.

Supported by Python libraries, you can easily establish a network of devices exchanging packetized radio data. The Adafruit Radio Bonnets operate on frequencies of 433 or 900 MHz, providing substantially longer ranges than the built-in 2.4 GHz WiFi/Bluetooth. While the data transfer speeds are slower, the extended reach compensates, transmitting data over kilometers with suitable antennas.

The simple packet radio system removes the need for complex procedures like pairing or associating devices, allowing straightforward data transmission and error correction, thanks to built-in encryption and automatic retransmission features. This makes the module an excellent choice for microcontroller networks, like a campus-wide sensor node system.

Choose between four radio variants: RFM69 radios for ease of use or the more robust LoRa radios. This description highlights the 900 MHz RFM69 radio version, adaptable for either 868MHz or 915MHz operations. With features like AES-128 encrypted packets, these radios create robust multi-point networks. Designed for simple integration, attach an antenna to the uFL connector or solder a wire to get started.