Kingduino Leonardo R3 Board Micro-USB

Description

The Leonardo differs from all preceding Arduino 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 behavior of the board — particularly reset behavior compared to earlier Arduino boards. It also means that there are now separate Serial and Serial1 classesfor the virtual serial driver and the hardware serial port, respectively. This also has an effect on the capabilities and assignments of some pins, e.g. SPI and TWI.

The ATmega32U4 allows for serial (CDC) communication over USB and appears as a virtual com port to software on the computer. The chip also acts as a full-speed USB 2.0 device, using standard USB COM drivers. It requires no drivers to be installed for Linux or Mac (for Windows a .inf file is included with the Arduino IDE software).

The Arduino Leonardo board has 20 digital input / output pins available via female headers. The female sockets accept standard square pin headers. This ATmega board also features a 16 MHz crystal, a power jack (7V to 12V DC), a 2×3-pin AVR In-System Programming (ISP) header, and a reset button.

Specs:
Length: 69mm
Width: 53mm
Power Input: 7v ~ 12v DC

*Note: This is not an original Arduino brand product.