Arduino LEONARDO
The Arduino Leonardo is a microcontroller board based on the ATmega32u4. 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. It also has other implications for the behaviour of the board.
| ARDUINO MICROCONTROLLER | |
|---|---|
|
Microcontroller |
ATmega32u4 |
|
Architecture |
AVR |
|
Operating Voltage |
5 V |
|
Flash memory |
32 KB of which 4 KB used by bootloader |
|
SRAM |
2.5 KB |
|
Clock Speed |
16 MHz |
|
Analog I/O Pins |
12 |
|
EEPROM |
1 KB |
|
DC Current per I/O Pins |
40 mA on I/O Pins; 50 mA on 3.3V |
| GENERAL | |
|---|---|
|
Input Voltage |
7-12 V |
|
Digital I/O Pins |
20 (of which 7 provide PWM output) |
|
PWM Output |
7 |
|
Power Consumption |
31 mA |
|
PCB Size |
53.3 x 68.5 mm |
|
Weight |
20g with headers / 14 g without headers |
|
Product Code |
A000057 (with headers); A000052 (without headers) |
