{"title":"Adafruit Feather M0 Bluefruit LE","handle":"adafruit-feather-m0-bluefruit-le","url":"/products/adafruit-feather-m0-bluefruit-le","description":"The Feather M0 Bluefruit LE combines an ATSAMD21G18 ARM Cortex M0 processor with a Bluetooth Low Energy module, native USB, and LiPo battery charging. With the power of a 48 MHz ARM core and 256KB of flash, it provides significantly more processing headroom than the 32u4-based Bluefruit while maintaining full BLE functionality.\n\nBLE is supported by all modern smartphones and tablets (iOS, Android, Mac OS X, Windows 8+). The Bluefruit module is built on the Nordic nRF51822 chipset and supports transparent UART serial communication, custom GATT services, HID keyboard emulation, UriBeacon broadcasting, and over-the-air firmware updates.\n\nKey Features\n\n\nATSAMD21G18 @ 48 MHz – ARM Cortex M0, 3.3V logic, 256KB flash, 32KB RAM\n\nNative USB – Built-in USB bootloader and serial port debugging\n\nBluetooth Low Energy (nRF51822) – iOS and Android compatible\n\nUART Service – Transparent serial data pipe between BLE device and microcontroller\n\nAT Command Set – Full control over BLE behaviour, GATT services, and advertising\n\nBLE HID Keyboard – Act as a wireless keyboard for compatible devices\n\nBLE Heart Rate Monitor – Standard BLE health profile support (external sensor required)\n\nUriBeacon Support – Broadcast URLs to nearby devices\n\nOver-the-Air Updates – Update BLE module firmware via iOS or Android\n\n20 GPIO Pins – Including 10 analogue inputs, 8 PWM outputs, and 1 analogue output (DAC)\n\nHardware Serial, I2C & SPI – Full peripheral support\n\nBuilt-in LiPo Charger – 100 mA charging with status indicator LED\n\nBattery Monitoring – Battery voltage routed to an analogue pin via divider\n\n3.3V Regulator – 500 mA peak current output\n\n\nSpecifications\n\n\nDimensions – 51 × 23 × 8 mm (without headers)\n\nWeight – 5.7 g\n\nMounting – 4 mounting holes\n\n\nAlso Available\n\n\nFeather M0 Adalogger – With MicroSD card holder\n\nFeather M0 Basic Proto – With prototyping area\n\nFeather M0 Express – Designed for CircuitPython\n\nFeather M0 WiFi – With ATWINC1500 Wi-Fi\nFeather M0 RFM95 LoRa Radio (900 MHz)\n\nFeather 32u4 Bluefruit LE – ATmega32u4 variant\n\n\nIdeal For\n\nPhone-controlled projects via iOS or Android\nWireless sensor data transmission\nBLE HID keyboards and controllers\nProjects needing more processing power than the 32u4 Bluefruit\n\n\nPackage Contents\n\n1× Assembled and tested Feather M0 Bluefruit LE\n1× Header set\n\n\n\nNote: LiPo battery and USB cable are sold separately.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":10717,"title":"Default Title","sku":"AF-2995","price":60.65,"on_sale":false,"in_stock":true,"available_quantity":102,"option1":"Default Title"}]}