{"title":"Arduino Leonardo Microcontroller","handle":"arduino-leonardo-microcontroller","url":"/products/arduino-leonardo-microcontroller","description":"The Arduino Leonardo is a microcontroller board based on the ATmega32U4, offering the same flash, RAM, and capabilities as the ATmega328 found in the Uno. The key difference is built-in USB communication, allowing the Leonardo to appear as a keyboard, mouse, or serial device to a connected computer — no secondary USB chip required.\n\nWith 20 digital I/O pins, 12 analog inputs, 7 PWM channels, and a micro USB connection, the Leonardo is ready for interactive projects straight out of the box. This version comes with all headers pre-soldered for easy breadboard and shield use.\n\nKey Features\n\n\nNative USB – Built-in USB on the ATmega32U4 enables keyboard, mouse, and serial device emulation\n\nPre-Soldered Headers – Ready for immediate use with breadboards and compatible shields\n\n20 Digital I/O Pins – 7 usable as PWM outputs, with 40mA per pin\n\n12 Analog Inputs – 10-bit resolution on pins A0–A11\n\nMultiple Power Options – Micro USB, DC power jack (7–12V), or VIN pin header\n\n\nSpecifications\n\n\nMicrocontroller – ATmega32U4\n\nOperating Voltage – 5V\n\nInput Voltage – 7–12V recommended (6–20V limits)\n\nInterface – Micro USB\n\nDigital I/O Pins – 20\n\nPWM Channels – 7\n\nAnalog Input Channels – 12\n\nDC Current per I/O Pin – 40mA\n\nDC Current for 3.3V Pin – 50mA\n\nFlash Memory – 32KB (4KB used by bootloader)\n\nSRAM – 2.5KB\n\nEEPROM – 1KB\n\nClock Speed – 16MHz\n\nBoard Dimensions – 70 × 55 × 14 mm (2.76 × 2.17 × 0.55 in)\n\n\n\nNote: The Leonardo differs from the Arduino Uno in its USB handling and is best suited for users with some Arduino experience. Requires Arduino IDE 1.0.1 or higher.\n\n\nIdeal For\n\nUSB HID projects (custom keyboards, mice, game controllers)\nInteractive installations and MIDI controllers\nGeneral-purpose electronics prototyping\nLearning embedded programming with Arduino\n\n\nPackage Contents\n\n1× Arduino Leonardo (with headers)\n\n\nResources\n\nSchematic (PDF)\nEagle Design Files\nATmega32U4 Datasheet (PDF)\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":10039,"title":"Default Title","sku":"DF-DFR0201","price":51.95,"on_sale":false,"in_stock":true,"available_quantity":12,"option1":"Default Title"}]}