1  ---
 2  layout: download
 3  board_id: "feather_m0_adalogger"
 4  title: "Feather M0 Adalogger Download"
 5  name: "Feather M0 Adalogger"
 6  manufacturer: "Adafruit"
 7  board_url: ""
 8  board_image: "feather_m0_adalogger.jpg"
 9  features:
10    - Feather-compatible
11    - Battery Charging
12  ---
13  
14  Feather is a development board from Adafruit, and like its namesake it is thin, light, and lets you fly! Adafruit designed Feather to be a new open standard for portable microcontroller cores.
15  
16  This is the **Adafruit Feather M0 Adalogger** - Adafruit's take on an 'all-in-one' Cortex M0 datalogger (or data-reader) with built in USB and battery charging. It is an Adafruit Feather M0 with a microSD holder ready to rock! [Adafruit has other boards in the Feather family here](https://www.adafruit.com/feather)
17  
18  At the Feather M0's heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and at 3.3V logic, the same one used in the new [Arduino Zero](https://www.adafruit.com/products/2843). This chip has a whopping 256K of FLASH (8x more than the Atmega328 or 32u4) and 32K of RAM (16x as much)! This chip comes with built in USB so it has USB-to-Serial program & debug capability built in with no need for an FTDI-like chip.
19  
20  To make it easy to use for portable projects, Adafruit added a connector for 3.7V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run just fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when its available. The battery is tied thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge.
21  
22  Here's some handy specs! Like all other Feather M0's you get:
23  
24  *   Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
25  *   Light as a (large?) feather - 5.3 grams
26  *   ATSAMD21G18 @ 48MHz with 3.3V logic/power
27  *   256KB of FLASH + 32KB of RAM
28  *   No EEPROM
29  *   3.3V regulator with 500mA peak current output
30  *   USB native support, comes with USB bootloader and serial port debugging
31  *   You also get tons of pins - 20 GPIO pins
32  *   Hardware Serial, hardware I2C, hardware SPI support
33  *   8 x PWM pins
34  *   10 x analog inputs
35  *   Built in 100mA lipoly charger with charging status indicator LED
36  *   Pin #13 red LED for general purpose blinking
37  *   Power/enable pin
38  *   4 mounting holes
39  *   Reset button
40  
41  The **Feather M0 Adalogger** uses the extra space left over to add MicroSD + a green LED:
42  
43  *   Pin #8 green LED for your blinking pleasure
44  *   MicroSD card holder for adding as much storage as you could possibly want, for reading or writing.
45  
46  Comes fully assembled and tested, with a USB bootloader. Includes some header so you can solder it in and plug into a solderless breadboard.
47  
48  ## Purchase
49  
50  * [Adafruit](https://www.adafruit.com/product/2796)
51  
52  ## Contribute
53  
54  Have some info to add for this board? Edit the source for this page [here](https://github.com/adafruit/circuitpython-org/edit/master/_board/{{ page.board_id }}.md).