1. Android Serial Port Programming
2. Usb Serial For Android
3. Android Usb Serial Port In C#
4. Android Usb Serial Port Arduino
5. Usb Serial Port Adapter
6. Android Usb Serial Port Example

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I have one custom made device for measuring current. This device can be connected to PC and communication is done over USB. It is based on FTDI chip. I have application written in Java and that application is using rxtxSerial.dll library and gnu.io.rxtx_2.1.7.4.jar. Now I want to port this application on my android device and I'm litte bit confused what to do that? All I have is android tablet (os version 4.1.1), OTG cable and this measuring device.

Should my device be rooted? Is there any kind of library that I can simply add to my Java Android application and read data over USB? Where to start?

I have tried to port existing application for PC using same library, but rxtxSerial.dll is missing and I can't transfer it to my android device.

3 Answers

I can really recommend the USB-Serial-For-Android library, it supports multiple popular usb-to-serial chips (also FTDI) and there is no rooting required. Check out the GitHub project here.

There is a project dedicated to serial communication on Android. android-serialport-api. I think, it is a good resource to start with.

FTDI also provides Android related resources.

I think there's currently only one properly maintained library for serial USB communication and it's felHR85/UsbSerial. It supports several USB chips including FTDI (see Devices Supported).

Unfortunately mik3y/usb-serial-for-android seems to be dead.

And no, you don't need to root your device for connecting to and communicating with a USB device.

EDIT: We have a maintained fork of mik3y's library. See kai-morich/usb-serial-for-android

protected by Pavneet_SinghSep 5 '18 at 18:51

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Android Serial Port Programming

Usb Serial For Android

Android Usb Serial Port In C#

Android Usb Serial Port Arduino

Usb Serial Port Adapter

Android Usb Serial Port Example