Adafruit Feather 328P - Atmega328P 3.3V @ 8 MHz

Adafruit Feather 328P - Atmega328P 3.3V @ 8 MHz is a development board for the classic "Arduino" chip ATmega328P. The Feather 328P is thin, light, and sets a new standard for portable microcontroller cores. The ATmega328P is clocked at 8MHz and at 3.3V logic. At the Feather 328P's heart is an ATmega328P clocked at 8 MHz and at 3.3V logic, a chip setup the same as the Pro Mini and similar to the Adafruit Metro 328. This chip has 32K of flash and 2K of RAM and is paired with a SiLabs CP2104 to give it a built-in USB-to-Serial program and debug capability.


  • Measures 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers
  • 3.3V regulator with 500mA peak current output
  • USB serial converter (CP2104) for USB bootloader and serial port debugging
  • 19 GPIO pins + 2 analog-in-only pins
  • Hardware I2C, hardware SPI support. For UART devices, should use SoftwareSerial
  • ATmega328p @ 8MHz with 3.3V logic/power
  • Light as a feather - 4.8g
  • 6x PWM pins
  • 8x analog inputs, two are shared with I2C
  • Built-in 100mA lipoly charger with charging status indicator LED
  • Pin #13 red LED for general purpose blinking
  • Two LEDs for serial data RX and TX
  • Power/enable pin
  • 4 mounting holes
  • Reset button


Publicado: 2018-02-23 | Atualizado: 2022-08-15