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Arduino Leonardo R3 Board
Arduino Leonardo differs from all preceding Arduino boards in that the user-programmable ATmega32U4 AVR micro-controller has built-in USB functionality, eliminating the need for a secondary processor.
Arduino Leonardo is an open source precise microcontroller board based on the ATmega32U4 SMD IC. It has 23 digital input/output pins (of which 7 can be used as PWM outputs and 12 can be used as analog inputs), a 16 MHz crystal, a USB connection, a power jack, an in-circuit system programming (ICSP) header, and a reset button. It contains everything needed to support the micro-controller; simply connect it to a computer (or appropriate wall power adapter) with a Micro USB cable or power it with a AC-to-DC adapter or battery to get started.
This makes the Leonardo more versatile: in addition to supporting a virtual (CDC) serial/COM port interface, it can appear to a connected computer as a mouse and keyboard.
Features of Arduino Leonardo
- Microcontroller: ATmega32u4
- Operating Voltage: 5V
- Input Voltage: 7-12V
- Input Voltage (limits): 6-20V
- Digital I/O Pins: 20
- PWM Channels: 7
- Analog Input Channels: 12
- DC Current per I/O Pin: 40 mA
- DC Current for 3.3V Pin: 50 mA
- Flash Memory: 32 KB
- SRAM: 2.5 KB (ATmega32u4)
- EEPROM: 1 KB (ATmega32u4)
- Clock Speed: 16 MHz
Applications of Arduino Leonardo
- DIY Kit
- Projects that require High Speed Processing.