====== Arduino Leonardo ======
A microcontroller board based around the ATmega 32u4 chip. Clocked at 16 MHz, it includes 32 KB of program flash (4 KB used by the bootloader), 2.5 KB of SRAM, and 1 KB of EEPROM. 

{{ ::leonardo-pinout.png?400 |}}

Its footprint and pinout are mostly the same as the [[arduino uno|Uno]]. However, it features two independent UART serial streams (one USB and one on pins 0/1) and five user interrupt pins (0, 1, 2, 3, 7). The PWM pins are also shifted around slightly. 

<WRAP center round tip 60%>
Pins 2 and 3 are SDA and SCL for I2C!
</WRAP>

{{tag>microcontroller "dev board"}}