Adafruit Feather M0 RFM69HCW Packet Radio - 433MHz

The Adafruit Feather M0 RFM69 Packet Radio is an innovative microcontroller with an embedded 433 MHz RFM69 HCW packet radio transceiver. It features a powerful ATSAMD21G18 ARM Cortex M0 processor running at 48 MHz, offering 256K of FLASH and 32K of RAM for extensive programming options. The board simplifies portable projects with its built-in USB and battery charging capabilities.

Measuring 51mm x 23mm x 8mm and weighing just 5.8 grams, this development board is exceptionally portable without headers soldered. It boasts 20 GPIO pins, hardware support for Serial, I2C, and SPI, 8 PWM pins, and 10 analog inputs. The inclusion of a 100mA LiPo charger and an LED charging status indicator adds to its convenience.

Utilizing the SX1231-based radio module, this device excels in small data packet transmission over a range of approximately 350 meters, making it suitable for applications that require more range than 2.4 GHz options like WiFi or ZigBee. The module supports encrypted communication with AES-128, and its power output is selectable via software, catering to different range requirements.

Provided with Arduino libraries, this board facilitates the creation of multipoint networks with individual node addresses. With a USB bootloader, the device is ready for immediate use with the Arduino IDE, allowing seamless integration into projects. While it comes fully assembled and tested, a simple wire antenna is needed for optimal function.