Scale up your automation projects, complex robotics, and 3D printers with the high-capacity Arduino Mega 2560 R3 CH340. Driven by the massive ATmega2560 microcontroller, this board provides vastly more input/output pins and larger memory capacity than a standard Arduino Uno. Equipped with a budget-friendly CH340 USB-to-UART converter chip for easy code uploads, it serves as the ultimate low-cost brain for dual-extruder 3D printers (like RAMPS setups), complex smart home hubs, and data-logging arrays.
Key Product Features
- Massive Pin Selection: Features 54 digital I/O pins and 16 analog inputs, allowing you to control dozens of sensors, relays, displays, and motors simultaneously without multiplexers.Â
- Expanded Code Memory: Offers 256 KB of flash storage—eight times more than the Uno—giving you plenty of space to store large programming files and complex automation scripts.Â
- Multiple Hardware Serials: Outfitted with 4 dedicated hardware UART ports to communicate seamlessly with multiple serial devices like GPS modules, Bluetooth chips, and GSM modems at the same time.Â
- Robust Dual Power Path: Can be powered via the standard USB port or through an external unregulated DC adapter plugged into the onboard 2.1mm center-positive barrel jack

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