Adafruit Feather M0 Adalogger is an all-in-one Cortex M0 data logger with a MicroSD holder for read/write storage. The data logger features an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48MHz and at 3.3V logic. The chip offers 256K of flash and 32K of RAM. The built-in USB provides a USB-to-Serial program and debug capability.
To support portable projects, the board includes a connector for Adafruit 3.7V lithium polymer batteries and built-in battery charging.
Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
Weight 5.3 grams
ATSAMD21G18 @ 48MHz with 3.3V logic/power
256KB of FLASH + 32KB of RAM
3.3V regulator with 500mA peak current output
USB native support comes with a USB bootloader and serial port debugging
20 GPIO pins
Hardware Serial, hardware I²C, hardware SPI support
8 PWM pins
10 analog inputs
Built-in 100mA lipoly charger with charging status indicator LED
Pin #13 red LED for general purpose blinking
4 mounting holes
Feather M0 Adalogger
Microchip Technology SAM D21 Arm® Cortex®-M0+ Microcontrollers
Low-power MCUs that range from 32- to 64-pins with up to 256KB Flash and 32KB of SRAM.