Arduino: Boards & Shields

Arduino and compatible boards: UNO R3, Nano, Mega 2560, Pro Mini, Leonardo, plus ESP8266 NodeMCU, ESP32, STM32 Blue Pill. Expansion shields: Ethernet, WiFi, motor driver, LCD, relay, GSM, GPS, RFID, touch. Filter by MCU (ATmega328, ATmega2560, ESP32, STM32), voltage 3.3/5 V, GPIO count, and USB/UART interfaces. Used for programming education, IoT prototyping, smart home, greenhouse automation, weather stations, and robotics. Supported by Arduino IDE, PlatformIO, and MicroPython.