Description
The Arduino Leonardo is a microcontroller board based on the ATmega32u4 (datasheet). It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
The Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Leonardo to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.
Features
- Microcontroller: ATmega32u4
- Operating Voltage：5V
- Input Voltage (Recommended): 7-12V
- Input Voltage (Limits): 6-20V
- Digital I/O Pins: 20
- PWM Channels: 7
- Analog Input Pins: 12
- DC Current per I/O Pin: 40mA
- DC Current for 3.3V Pin: 50mA
- Flash Memory: 32kB of which 4kB used by bootloader
- SRAM: 2.5kB
- EEPROM: 1kB
- Clock Speed: 16MHz
Tutorials
Resources
| Datasheets | A000052 |
| Design Resources | |
| Featured Product | Leonardo Board |
| Reference Design Library | |
| HTML Datasheet | A000052 |
| Scheme-It | A000052 Scheme-It® |
Robo Admin T –
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