Kingduino R3 - Atmel ATmega328

Kingduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.

Kingduino can sense the environment by receiving input from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. The microcontroller on the board is programmed using the Kingduino programming language (based on Wiring) and the Kingduino development environment (based on Processing). Kingduino projects can be stand-alone or they can communicate with software running on a computer (e.g. Flash, Processing, MaxMSP).
 
The controller differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 (Atmega8U2 up to version R2) programmed as a USB-to-serial converter.

Revision 2 of the controller board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.

Revision 3 of the board has the following new features: 
1.0 pinout: added SDA and SCL pins and IOREF that allow the shields to adapt to the voltage provided from the board and will now be compatible with 3.3v and 5v shields.

*Note: This is not an original Kingduino brand product, it is manufactured with the same components and functionality by a different manufacturer.

Specs:
Microcontroller: ATmega328
Operating Voltage: 5V
Input Voltage (recommended): 7-12V
Input Voltage (limits): 6-20V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 6
DC Current per I/O Pin: 40 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM: 2 KB (ATmega328)
EEPROM: 1 KB (ATmega328)
Clock Speed: 16MHz

Includes:
1 x Kingduino R3 compatible Microcontroller board
1 x USB cable

The Kingduino microcontroller is derived from the Arduino Uno R3 Micro controller project. The Arduino and Uno names are trademarks of Arduino LLC or Arduino SA (http://arduino.cc/). Kingduino products are not supported by or connected to Arduino LLC or Arduino SA. Support is not offered by the Arduino group for Kingduino products. 

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