SEEED STUDIO SEEEDUINO V4.2 (100% ARDUINO UNO COMPATIBLE) 102010026

Seeeduino V4.2 is based the Arduino UNO bootloader, and with an ATMEGA16U2 as a Uart-to-USB converter. You can program and power the board via a micro-USB cable. Also you can power the board via a DC Jack input, 7 to 15V is acceptable. There's a switch to choose the system supply voltage, 3.3V or 5V, which is very useful if you want to set the system to 3.3V to save power.

Finally, the three on-board Grove interface can make your board connect to Grove Sensors easily. 

Features:

• ATmega328 microcontroller
• Arduino UNO bootloader
• 14 Digital I/O Pins (6 PWM outputs)
• 6 Analog Inputs
• ISP Header
• Arduino UNO-R3 Shield Compatible
• Micro USB programming and power supply
• 3 on-board Grove connectors
• 3.3/5V system operation power switch

Specifications:

• 3 on-board Grove connectors
• DC Current per I/O Pin: 40 mA
• DC Jack Input: 7v-12v
• Flash Memory: 32 KB
• RAM: 2 KB
• EEPROM: 1 KB
• Clock Speed:16 MHz
• Length: 68.6mm
• Width: 53.4mm
• Weight: 26g

Documents:

• Wiki