{"product_id":"mega-r3-atmega2560-16u-board-compatible-with-arduino","title":"Mega R3 ATMEGA2560 16U Board – Compatible with Arduino","description":"\u003ch1\u003eMega R3 ATMEGA2560 16U Board – 54 Digital I\/O, 256KB Flash\u003c\/h1\u003e\u003cp\u003eThe Mega R3 ATMEGA2560 16U board is a microcontroller development board based on the ATmega2560 chip, fully compatible with Arduino Mega 2560. It provides abundant I\/O pins and memory for complex projects like 3D printers, robotics, and large-scale automation. The onboard ATmega16U2 USB-to-serial converter ensures reliable programming and communication.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicrocontroller\u003c\/td\u003e\n\u003ctd\u003eATmega2560\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage (recommended)\u003c\/td\u003e\n\u003ctd\u003e7-12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital I\/O Pins\u003c\/td\u003e\n\u003ctd\u003e54 (15 PWM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Input Pins\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e256 KB (8 KB bootloader)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRobotic arm with multiple servos and sensor feedback\u003c\/li\u003e\n\u003cli\u003e3D printer or CNC machine controller (works with RAMPS 1.4)\u003c\/li\u003e\n\u003cli\u003eHome automation hub with touchscreen and wireless module\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-led-matrix-pixel-art-board\"\u003eLED matrix display or large-scale interactive art installation\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis board uses the standard Arduino Mega pinout, making it compatible with all shields designed for the Mega 2560. It operates at 5V logic levels and can be powered via USB or an external 7-12V supply. Commonly paired with RAMPS 1.4 for 3D printing, sensor shields, and RS-485 modules for industrial communication.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eFor programming, connect via USB cable; the ATmega16U2 handles serial conversion. When using external power, ensure voltage stays within 7-12V to avoid damage. I2C devices connect to SDA (pin 20) and SCL (pin 21), and SPI uses pins 50-53.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with standard Arduino shields?\u003c\/summary\u003e\u003cp\u003eYes, the Mega R3 uses the same pinout as the Arduino Mega 2560, so all standard Mega shields fit and work without modification.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I power it via USB for motor projects?\u003c\/summary\u003e\u003cp\u003eUSB provides 5V, which may not supply enough current for motors. Use a 7-12V external supply for reliable operation with high-power loads.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow does this differ from Arduino Uno?\u003c\/summary\u003e\u003cp\u003eThe Mega has 54 digital I\/O pins, 16 analog inputs, and 256KB flash, compared to Uno's 14 digital, 6 analog, and 32KB flash. It's suited for larger, pin-intensive applications.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444962582893,"sku":"CDN-0453","price":1360.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_84e958a0-a05c-42c0-b4ab-2f0c29b7c597.jpg?v=1781512580","url":"https:\/\/compoden.com\/products\/mega-r3-atmega2560-16u-board-compatible-with-arduino","provider":"Compoden","version":"1.0","type":"link"}