{"title":"Adafruit Feather M0 Adalogger","handle":"adafruit-feather-m0-adalogger","url":"/products/adafruit-feather-m0-adalogger","description":"The Feather M0 Adalogger is an all-in-one datalogger built around the ATSAMD21G18 ARM Cortex M0 processor, with a built-in MicroSD card holder, native USB, and LiPo battery charging. With 256KB of flash and 32KB of RAM — 8× and 16× more than the ATmega328 or 32u4 respectively — it provides significantly more processing power and memory for data-intensive projects.\n\nThe same chip used in the Arduino Zero, the ATSAMD21 includes native USB support for programming, serial debugging, and HID device emulation without needing a separate USB-serial converter.\n\nKey Features\n\n\nATSAMD21G18 @ 48 MHz – ARM Cortex M0, 3.3V logic\n\n256KB Flash + 32KB RAM – No EEPROM\n\nNative USB – Built-in USB bootloader and serial port debugging\n\nMicroSD Card Holder – For extensive data storage and reading\n\n20 GPIO Pins – Including 10 analogue inputs and 8 PWM outputs\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\nPin #8 Green LED – Additional LED for logging status indication\n\nPin #13 Red LED – General-purpose blinking\n\n\nSpecifications\n\n\nDimensions – 51 × 23 × 8 mm (without headers)\n\nWeight – 5.3 g\n\nMounting – 4 mounting holes\n\n\nAlso Available\n\n\nFeather M0 Basic Proto – With prototyping area\n\nFeather M0 Bluefruit LE – With Bluetooth Low Energy\n\nFeather M0 Express – Designed for CircuitPython\n\nFeather M0 WiFi – With ATWINC1500 Wi-Fi\nFeather M0 RFM95 LoRa Radio (900 MHz)\nFeather M0 RFM69HCW Packet Radio (868/915 MHz)\n\n\nIdeal For\n\nPortable data logging and environmental monitoring\nSensor data recording to MicroSD card\nBattery-powered field deployments\nProjects requiring more memory than ATmega-based Feathers\n\n\nPackage Contents\n\n1× Assembled and tested Feather M0 Adalogger\n1× Header set\n\n\n\nNote: LiPo battery, MicroSD card, and USB cable are sold separately.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":10425,"title":"Default Title","sku":"AF-2796","price":40.89,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":64,"option1":"Default Title"}]}