The Seeeduino V4.2 is based on the Arduino UNO bootloader and features an ATMEGA16U2 as a UART-to-USB converter, which means that the board can essentially function like an FTDI chip. You can program the board using a Micro-USB cable, which is easily available if you have an Android phone. Additionally, you can power the board through a DC barrel jack input; 7 to 15 volts are acceptable. There is a switch to select the system supply voltage, either 3.3 volts or 5 volts, which is very useful if you want to set the system to 3.3 volts to save power. Finally, the three built-in Grove interfaces make it easy to connect your board with Groves. I want to create something great, perhaps just a Seeeduino V4.2 and some Groves.