Pololu A-Star 32U4 User's Guide
pcb design - Help with Atmega32u4 custom PCB - Electrical Engineering Stack Exchange
ATmega32u4 usb powered minimal bootloader and test circuit - Microcontrollers - Arduino Forum
Component selection and schematic for a custom ATmega32u4 PCB – Bad Casserole
First attempts with an ATMega32U4-AU. | AVR Freaks
LilyPad Arduino USB - ATmega32U4 Board (Open hardware) copy - EasyEDA
bootloader - Custom board with ATMega32u4 having USB issues - Arduino Stack Exchange
Comparing ATmega32u4 Implementations | AVR Freaks
avr - ATmega32U4 without USB: how to handle usuned pins - Electrical Engineering Stack Exchange
Atmega32u4 Game Controller Schematic - Please review : r/PrintedCircuitBoard
Atmega32u4 Breakout Board|296 Reference Design | Microcontroller | Arrow.com
microcontroller - How can I program an Atmega32u4 over USB with this schematic? - Electrical Engineering Stack Exchange
microcontroller - ATmega32U4: no output - Electrical Engineering Stack Exchange
Custom Atmega32u4 board not getting recognized by windows even though bootloader flash was successful | AVR Freaks
ATmega32u4 Minimal USB-C Resources - EasyEDA
ATMEGA32U4 PCB – Embedded Hardware Blog
I am working on a USB c powered atmega32u4 based macropad. Will this work? : r/avr
Basic design atmega32u4 | AVR Freaks
Download | Atmega32u4 Breakout | Adafruit Learning System
schematic review using ATMega32u4 for a custom little keyboard : r/PrintedCircuitBoard
AVR ATmega32U4 USB Development Board – Waiting for Friday
Tiny (still-flakey) USB keyboard with ATMEGA 32u4 🥖 John Mueller's randoms
Care to give an opinion on an Atmega32u4 USB board schematic? : r/arduino
