Arduino MEGA 2560 PRO Compatible Board — Compact Form Factor
The Arduino MEGA 2560 PRO is a compact redesign of the standard Mega 2560, fitting the full ATmega2560 feature set — 256KB flash, 54 digital pins, 16 analogue inputs, and 4 hardware UARTs — onto a narrower board that fits on a standard breadboard. The CH340G USB interface chip handles programming and serial monitor from the Arduino IDE on Windows, macOS, and Linux without additional drivers on modern operating systems.
- ATmega2560 microcontroller — 256KB flash, 8KB SRAM, 4KB EEPROM
- 54 digital I/O pins — 15 with PWM output
- 16 analogue inputs — 10-bit ADC
- 4 hardware UARTs — Serial0–3 for simultaneous multi-device communication
- Breadboard-compatible width — narrower than standard Mega 2560
- CH340G USB interface — no additional driver needed on Windows 10/11
| Specification | Value |
|---|---|
| Microcontroller | ATmega2560 |
| Flash memory | 256KB (8KB used by bootloader) |
| SRAM | 8KB |
| EEPROM | 4KB |
| Digital I/O | 54 (15 PWM) |
| Analogue inputs | 16 (10-bit) |
| Hardware UARTs | 4 |
| Clock speed | 16MHz |
| USB interface | CH340G |
Is the MEGA 2560 PRO compatible with standard Mega shields?
It shares the same ATmega2560 and pin layout as the standard Mega 2560, so all Mega-compatible shields and libraries work identically. The narrower PCB footprint means the pin headers are on the same spacing but positioned closer together — standard Mega shields with the full-width PCB will overhang the PRO board physically, though electrically they connect correctly.
Why choose the MEGA 2560 over an Arduino Uno?
The Mega provides 54 digital pins vs the Uno's 14, 16 analogue inputs vs 6, four hardware serial ports vs one, and 16x more flash memory. Choose the Mega when your project runs out of pins on the Uno, needs multiple simultaneous serial devices (GPS, GSM, and Bluetooth at the same time, for example), or requires large data arrays that exceed the Uno's 2KB SRAM.
Best for
CNC machine control with RAMPS 1.4, multi-sensor data logging, MIDI controllers with many buttons, large LED matrix driving, 3D printer control boards, robotics projects with multiple servo channels, and any build that has outgrown the Uno's pin count.
Why Kunkune
Shipped from UK stock. 60-day returns, no minimum order. Same-day dispatch before 2pm.
For 3D printer control, the RAMPS 1.4 shield pairs with the Mega 2560 to run Marlin firmware across five stepper motor axes.
Buying in bulk? For orders of 10+ units, contact us for trade pricing.
