The Adafruit Data logger

November 12, 2015 | 19:36
The Feather Adalogger has built-in USB and microSD slot
The Feather Adalogger has built-in USB and microSD slot
Adafruit has announced the addition of the Feather 32u4 Adalogger to its Feather family of diminutive development and prototyping boards. The board uses 3.3V logic and is powered by the ATMega32U4 Arduino compatible microcontroller clocked at 8 MHz. This chip has 32KB of flash and 2KB of RAM with an integrated USB controller so not only does it have a USB-to-Serial program & debug capability built-in, there is no need for an FTDI-like serial converter chip.

It can also act like a mouse, keyboard, USB MIDI device, etc. A two-pin connector allows optional stand-alone operation from a single Lipoly cell which can be charged from the USB port via the built-in battery manager. The board can also run directly from USB power. Also included is a handy microSD slot.

Key features of the Adafruit Adalogger:

• Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
• Light as a (large?) feather - 5.1 grams
• ATmega32u4 @ 8 MHz with 3.3 V logic/power
• 3.3 V regulator with 500 mA peak current output
• USB native support, comes with USB bootloader and serial port debugging
• You also get tons of pins - 20 GPIO pins
• Hardware Serial, hardware I2C, hardware SPI support
• 8 x PWM pins
• 10 x analog inputs
• Built in 100 mA lipoly charger with charging status indicator LED
• Pin #13 red LED for general purpose blinking
• Power/enable pin
• Reset button

The board comes fully assembled and tested, with a USB bootloader so you can be up and running with the Arduino IDE in no time. The board is available from the Adafruit website and online store. The Feather 32u4 Adalogger is priced at $21.95.
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