Adafruit Feather 32u4

Hardware

Platform Atmel AVR: Atmel AVR 8-bit MCUs deliver a unique combination of performance, power efficiency and design flexibility. Optimized to speed time to market-and easily adapt to new ones-they are based on the industry’s most code-efficient architecture for C and assembly programming

Microcontroller ATMEGA32U4
Frequency 8MHz
Flash 28KB
RAM 2.50KB
Vendor Adafruit

Configuration

Please use feather32u4 ID for board option in “platformio.ini” (Project Configuration File):

[env:feather32u4]
platform = atmelavr
board = feather32u4

You can override default Adafruit Feather 32u4 settings per build environment using board_*** option, where *** is a JSON object path from board manifest feather32u4.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:feather32u4]
platform = atmelavr
board = feather32u4

; change microcontroller
board_build.mcu = atmega32u4

; change MCU frequency
board_build.f_cpu = 8000000L

Debugging

PIO Unified Debugger - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Adafruit Feather 32u4 has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Compatible Tools On-board Default
simavr Yes Yes

Frameworks

Name Description
Arduino Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.