Extension for USB OTG communication

[Jonathan Sosa]

I'd like to attempt to create an extension for serial communication over a USB OTG cable to a connected Arduino board or other microcontroller. This would make controlling LEDs, motors and other sensors out in the real world easier/cheaper. I know many people use Bluetooth to do this, which I've done, but I'd prefer to use a cable. My Java skills are not that great however, I'd like to know how easy/difficult this would be for anyone who's built an extension already, it may be over my head ATM.

[Taifun]

the easiest way probably is to find a suitable library

https://www.google.com/search?q=android+usb+otg+communication

for example this one https://github.com/mik3y/usb-serial-for-android

this looks doable, however you will have to define a listener during runtime of the app instead of using the manifest as explained there to find out, if a device has been attached...

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Taifun

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Trying to push the limits of App Inventor! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun. 

[Abraham Getzler]

Is this what you were looking for?

https://groups.google.com/forum/#!searchin/mitappinventortest/usb$20otg%7Csort:relevance/mitappinventortest/5dGv5ULEd2U/SfqvRz2IEAAJ

ABG