Arduino Compatible

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Build more for less with Arduino-compatible boards from Circuitrocks. Choose community-tested boards like UNO R3 , Mega 2560 , Nano , Pro Mini , Pro Micro/Leonardo (ATmega32U4) , and more—ideal for sensor projects , displays , robotics, and classroom STEM. Shop by Form Factor UNO R3 (ATmega328P) – the classic 5V workhorse Mega 2560 – more flash, SRAM, and I/O pins Nano – breadboard-friendly; Mini-USB/Micro-USB/USB-C variants Pro Mini (3.3V/5V) – ultra-compact; external USB-TTL Pro Micro (ATmega32U4) – native USB (HID/keyboard) Leonardo (ATmega32U4) – native USB with extra I/O Due – 32-bit ARM; 3.3V logic (check shield compatibility) Popular Shields & Modules Proto shields & I/O expanders for neat builds Relay shields & motor shields for control Ethernet (W5100/W5500) , Wi-Fi , Bluetooth LCD 1602 shields , keypad shields , microSD modules Essential Accessories USB cables : USB-A↔B (UNO/Mega), Mini-B / Micro-B (Nano/32U4), USB-C Power supplies & barrel adapters (5.5×2.1 mm) USB-to-TTL (FTDI/CP2102/CH340) for Pro Mini & bootloaders Breadboards & jumper wires , soldering tools Compatibility Notes 5V vs 3.3V: UNO/Mega/Nano are typically 5V logic; Due/3.3V variants need level shifting for 5V shields. USB drivers: Some boards use CH340/CP2102/FT232. Install the correct driver if your PC can’t detect the board. IDE support: Works with Arduino IDE and PlatformIO; most product pages link libraries and examples. Powering: Prefer regulated 5V via USB for beginners; verify barrel-jack voltage limits per board. Related Collections Official Arduino • Sensors • Displays • Components • Tools • Cables FAQs – Arduino-Compatible Boards (Philippines) Are these boards genuine Arduino? We carry official Arduino and clearly labeled compatible boards. Check each product page for the exact variant and USB interface chip. Which board should I start with? Start with UNO R3 for tutorials and shields. Move to Mega 2560 if you need more memory/I/O, or Pro Micro (32U4) for