how to manage multiple Android mobile for hardware testing - Android Software/Hacking General [Developers Only]

we are hardware developers of USB OTG host modem devices
we wish to test our hardware's software interface work properly in different Android mobile devices.
How can we set up a Google account so that we can have multiple different Android mobile devices?
Is one Google account can only allow 3 different Android mobile devices?
Once tested, how can we delete and change to test on different devices?

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I'm working on a project where I need to examine the different mechanisms mobile devices might employ to determine services and devices available nearby.
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TIA.
Sent from my G-Tablet running Vegan-Tab (GingerEdition RC1)

[Q] An Android app to clone displays across multiple Android devices?

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[Q] Communication between two different apps on different devices

Hi,
I have some doubts and do not know how to do, maybe you can help me.
so, I need to communicate between two different android apps on different devices.
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Android device as Input device

Hello Devs,
I am working on idea where i want to make my android device as input device to other devices(PC,PS,IOS phones,android devices).
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But after lot of research i found that android device can be used as bluetooth HID input device i have got rooted device with me but i am unable to use HID profile to implement this.
I have seen some projects but they are developed with different version of android which are not compatible with greater that 4.2.
Can anybody help me with this ,any kind of system level modification can be accepted as i have rooted device.

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