ADF FEATHER 32U4 BASIC PROTO
SKU: 50061477673

ADF FEATHER 32U4 BASIC PROTO

Sale price$176.09 Regular price$195.65
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Description

ADF FEATHER 32U4 BASIC PROTOADAFRUIT FEATHER 32U4 BASIC PROTO using ATMEGA32U4, Clocked AT 8 MHZ and AT 3. 3V Logic, 32K Flash and 2KRAM and Built in USB Overview At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3. 3V logic, a chip setup we've had tons of experience with as it's the same as the Flora. This chip has 32K of flash and 2K of RAM, with built in USB so not only does it have a USB to Serial program & debug capability built in with no need for an

ADAFRUIT FEATHER 32U4 BASIC PROTO using ATMEGA32U4, Clocked AT 8 MHZ and AT 3.3V Logic, 32K Flash and 2KRAM and Built in USB

Overview

 

At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3.3V logic, a chip setup we've had tons of experience with as it's the same as the Flora. This chip has 32K of flash and 2K of RAM, with built in USB so not only does it have a USB-to-Serial program & debug capability built in with no need for an FTDI-like chip, it can also act like a mouse, keyboard, USB MIDI device, etc. This chip is well supported in the Arduino IDE and can run just about every sensor/library out there.

To make it easy to use for portable projects, we added a connector for any of our 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. We also tied the battery thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge.

Features

 

  • Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered in
  • Light as a (large?) feather - 4.8 grams
  • ATmega32u4 @ 8MHz with 3.3V logic/power
  • 3.3V regulator with 500mA 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
  • 7 x PWM pins
  • 10 x analog inputs (one is used to measure the battery voltage)
  • Built in 100mA lipoly charger with charging status indicator LED
  • Pin #13 red LED for general purpose blinking
  • Power/enable pin
  • 4 mounting holes
  • Reset button

Specification

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50061477673

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4.6 ★★★★★
Based on 79 reviews
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Product Reviews
K
Verified Purchase
K. Kirchein
Lake Worth, US
★★★★★ 5
Great watch
Color: two tone blue
Great looking. Easy to adjust wrist band. Looks expensive and get many compliments
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
L
Verified Purchase
Line builder
New York, US
★★★★★ 4
Good, inexpensive work watch
Color: all black watch
Bought as a working watch so I don’t wreck my good watches. It’s been working just fine and holding up well while not taking very good care of it. Keeps accurate time. Glass has stayed clear. Black finish looks good and is holding up well. Seems to hold up with steady pounding. Stop watch buttons are a bit crude and will mess up your time when your hand gets pushed back against it during hard labor. However, I have not babied this watch at all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
E
Verified Purchase
eugene kennedy
West Palm Beach, US
★★★★★ 5
Great product
Color: two tone blue
Will need adjustment. Great looking watch
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
Verified Purchase
Johnie B
Port Orchard, US
★★★★★ 3
3 stars
Color: all black watch
It’s not an ugly watch, but I did not think the watch looked as nice in person This watch lost several minutes over a few months. It is light and feels cheap. However, it was not expensive, it’s comfortable to wear and beauty is in the eye of the beholder.
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Reviewed in the United States on July 15, 2025
D
Verified Purchase
Doesn’t work with him reads error on all three new filters.
Louisville, US
★★★★★ 1
The band is hollow and the watch doesn’t feel well built
Color: gold watch for men
Cheaply mad, I purchased a expensive watch and it’s nice but the cheap one is definitely what you pay for will not buy or recommend to anyone
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Reviewed in the United States on April 26, 2026

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