Adafruit Feather 32u4 Adalogger is an all-in-one data logger with a MicroSD holder. The data logger features an ATmega32u4 clocked at 8MHz and at 3.3V logic. The processor 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 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 5.1 grams
ATmega32u4 @ 8MHz with 3.3V logic/power
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
4 mounting holes
FEATHER 32u4 Adalogger
Microchip Technology ATmega32U4 8-bit MCU with USB Controller
A low-power, AVR RISC-based device featuring 32KB self-programming flash program memory.