Pinouts
Arduino Boards
Arduino Duemilanove
Arduino Esplora
Arduino Ethernet
Arduino Fio
Arduino Leonardo
Arduino Mega
Arduino Micro
Arduino Nano
Arduino Nano Every
Arduino Pro
Arduino Pro Micro
Arduino Pro Mini
Arduino Uno R3
Arduino Yun
LilyPad Arduino
LilyPad Arduino USB
Microchip Boards
ATmega4809 Curiosity Nano
ATmega4809 Xplained Pro
AVR-IoT WG (ATmega4808)
3rd Party Boards
Digispark Pro 167
Thinary Nano 4808
MH-Tiny (ATtiny88)
ATtiny
ATtiny13
ATtiny2313(A)/4314
ATtiny43U
ATtiny24/44/84
ATtiny441/841
ATtiny25/45/85
ATtiny261/461/861
ATtiny87/167
ATtiny48/88
DIP
TQFP
ATtiny828
ATtiny1634
ATtiny202/402
ATtiny204/404/804/1604
ATtiny406/806/1606
ATtiny807/1607
ATmega
ATmega16U4/32U4
ATmega640/1280/2560
AVR Pinout
Mega Pinout
ATmega64/128/1281/2561+AT90CAN32/64/128
ATmega8515/162
ATmega8535/16/32/164/324/644/1284
Standard Pinout
DIP
TQFP
Bobuino Pinout
DIP
TQFP
Sanguino Pinout
DIP
TQFP
ATmega324PB
Standard Pinout
Bobuino Pinout
Sanguino Pinout
ATmega165/325/645/169/329/649
ATmega3250/6450/3290/6490
ATmega8/48/88/168/328
DIP
TQFP
ATmega48/88/168/328PB
ATmega808/1608/3208/4808
SSOP
TQFP
ATmega809/1609/3209/4809
DIP
TQFP
Source:
https://forum.arduino.cc/t/32u4-boards/650927/2
