The 32u4 RFM95 LoRa Packet Radio supports wireless networks that extend past 2.4GHz 802.15.4. The device is also more flexible than BLUETOOTH® LE and without the high-power requirements of WiFi.
The design is based on the ATmega32u4 processor, clocked at 8MHz and at 3.3V logic. The chip offers 32K of flash and 2K of RAM. The built-in USB provides a USB-to-Serial program and debug capability. To support portable projects, the development board includes a connector for Adafruit 3.7V lithium polymer batteries and built-in battery charging.