I tried the free Android version on a Nexus 7 2013.

3D Printing GCodePrintr
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1

I tried the free Android version on a Nexus 7 2013. LSUSB shows the printer, but I get a “No USB” message when trying to connect. Printer is a Printrboard (like a Teensy/Sangulou) running Marlin.

2

Android must detect the usb device. lsusb might not be enough. Did you try the faq tips ?
http://gcodesim.dietzm.de/FAQ.html#detecterror

3

Sorry! The printerboard was in some strange state and wouldn’t connect to anything. Once I cleared that it worked fine. Very cool.

4

@Understanding_3D_Pri great. let me know how the App works for you. Any feedback is highly welcome.