Seeed 102010004 seeeduino v4 arduino compatible board with upgrades seeed studio 102010004 the b seeeduino v4 0 b is an open source development board based around the b atmega328p mu b mcu the board inherits all the features of the arduino b duemilanove b and b uno b but also adds some of its own the b seeeduino b has pin layout compatibility with the duemilanove and uno as well as compatibility with the duemilanove s screw holes and board dimensions the board features upgr