OpenEcoSys-NetworkViewer is a cross-platform Qt4 GUI used to interact with distributed embedded nodes on the network. The modular interface supports multiple transmission media and protocols. Real-time graphical visualization of remote variables hosted on embedded devices is made possible by a software stack called NETVProtocolStack and Arduino compatible boards and Microchip PIC (8,16, 32 bits) micro-controllers are supported. Logging facilities and JavaScript scripting are also available through a plug-in mechanism to interact with the remote variables. A plug-in mechanism is also available to implement new protocols and support new communication hardware.