{"title":"DFRobot  Mega 2560 V3.0 (Arduino Mega 2560 R3 Compatible)","handle":"dfrobot-mega-2560-v3-0-arduino-mega-2560-r3-compatible","url":"/products/dfrobot-mega-2560-v3-0-arduino-mega-2560-r3-compatible","description":"The DFRobot Mega 2560 V3.0 is a fully compatible Arduino Mega 2560 R3 microcontroller board based on the ATmega2560. It features 54 digital I/O pins (14 with PWM), 16 analog inputs, 4 hardware serial ports, and a 16 MHz crystal oscillator. Connect via USB or power with a 7–12 V adapter or battery to get started.\n\nColour-coded headers make wiring easier: red for power, blue for analog I/O, and green for digital I/O — matching DFRobot's sensor colour scheme for quick identification.\n\nKey Features\n\n\nArduino Mega 2560 R3 Compatible – Works with the Arduino IDE and standard Mega shields\n\nATmega2560 Microcontroller – 256 KB flash, 8 KB SRAM, 4 KB EEPROM\n\n54 Digital I/O Pins – 14 with PWM output\n\n16 Analog Inputs – For reading sensors and analog signals\n\n4 Hardware Serial Ports – UARTs for multi-device communication\n\nColour-Coded Headers – Red (power), blue (analog), green (digital) for easy wiring\n\nSDA/SCL Pins – Dedicated I2C pins near AREF, plus IOREF pin for voltage adaptation\n\nATmega16U2 USB Interface – Improved over the older ATmega8U2\n\nQuartz Crystal Oscillator – Better timer and serial accuracy than ceramic resonators\n\n\nSpecifications\n\n\nMicrocontroller – ATmega2560\n\nOperating Voltage – 5 V\n\nInput Voltage – 7–12 V (recommended)\n\nDC Current per I/O Pin – 40 mA\n\nDC Current for 3.3 V Pin – 50 mA\n\nFlash Memory – 256 KB (8 KB used by bootloader)\n\nSRAM – 8 KB\n\nEEPROM – 4 KB\n\nClock Speed – 16 MHz\n\n\nPackage Contents\n\n1× DFRduino Mega 2560 V3.0\n\n\nResources\n\nSchematic (PDF)\nBoard Layout (PDF)\nArduino Mega 2560 – Official Page\nArduino IDE\nArduino Language Reference\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":11423,"title":"Default Title","sku":"DF-DFR0191","price":42.9,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":833,"option1":"Default Title"}],"documents":[{"title":"DFRduino Mega2560 Controller Schematics","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDFB4BSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--43a0dd0ed18e2c952527da8ff27cfd560841ac97/_5BDFR0191_5DDFRduino_20Mega2560_V3.2_-SCH.pdf","link":false,"file_extension":"PDF","file_size":2174006,"description":"Circuit schematic for the DFRduino Mega2560 board"},{"title":"CE Certificate","type":"compliance","type_label":"Compliance","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDFR4BSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--294b02e69ee0103af1ea963aaac57f9a27b1961b/DFR0191_dfrduino-mega2560_ce_V3.pdf","link":false,"file_extension":"PDF","file_size":627411,"description":"CE compliance certificate for the DFRduino Mega2560"},{"title":"RoHS Certificate","type":"compliance","type_label":"Compliance","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDFx4BSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--b1a9d73b56b3a56aee156a5dc56bc9815a284646/DFR0191_dfrduino-mega2560_rohs_V3.pdf","link":false,"file_extension":"PDF","file_size":666271,"description":"RoHS compliance certificate for the DFRduino Mega2560"},{"title":"Supplier page — dfrobot.com","type":"supplier_description","type_label":"Supplier Description","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkD9yIBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--e133cb765bedbd5ecd7a49313563d8482c0ee5c6/dfrobot-mega-2560-v3-0-arduino-mega-2560-r3-compatible-dfrobot-com-2026-05-13.pdf","link":false,"file_extension":"PDF","file_size":848852,"description":"Snapshot of https://www.dfrobot.com/product-655.html (captured 13 May 2026)"},{"title":"DFR0191 dfrduino mega2560 schematics V3","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDDkADSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--f693d02d1ce85ad1157c07d2ec250e96c5ecf009/DFR0191_dfrduino-mega2560_schematics_V3.pdf","link":false,"file_extension":"PDF","file_size":2174006}]}