Arduino UNO R4 Minima
ATmega328P replacement using a Renesas RA4M1 Cortex-M4 at 48 MHz with USB-C, DAC, CAN bus, and HID support. Keeps UNO shield pinout and 5 V GPIO; no wireless module.
Arduino
76 other optionsAbout 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.
10 I/Os PLC Module - CPU Arduino Nano (Optoisolated Output) visual preview10 I/Os PLC Module - CPU Arduino Nano (Optoisolated Output)
10 I/Os Relay Module - CPU Arduino Nano (Relay Output) visual preview10 I/Os Relay Module - CPU Arduino Nano (Relay Output)
Adafruit METRO 328 - Arduino Compatible - with Headers visual previewAdafruit METRO 328 - Arduino Compatible - with Headers
Adafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz [STEMMA QT / Qwiic] visual previewAdafruit Metro Mini 328 V2 - Arduino-Compatible - 5V 16MHz [STEMMA QT / Qwiic]
Arduino DUE Microcontroller Board visual previewArduino DUE Microcontroller Board
Arduino Duemilanove 328 visual previewArduino Duemilanove 328
Arduino Esplora visual previewArduino Esplora
Arduino GIGA R1 WiFi visual previewArduino GIGA R1 WiFi
Arduino Leonardo visual previewArduino Leonardo
Arduino Leonardo ETH visual previewArduino Leonardo ETH
Arduino M0 Board (DFR0378) visual previewArduino M0 Board (DFR0378)
Arduino M0 Pro visual previewArduino M0 Pro
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