ComPort for Android USB

Delphi and C++ Builder serial communication library for USB connected devices for Android.

uses usb-serial-for-android library
supports FTDI FT232R, FT232H, FT2232H, FT4232H, FT230X, FT231X, FT234XD; Prolific PL2303; Silabs CP2102 and all other CP210x; Qinheng CH340, CH341A; CDC/ACM (Arduino Uno) chips
no special root access privileges needed
available for Delphi/C++ Builder 10 - 10.4
source code included in registered version
royalty free distribution in applications

Download ComPort for Android USB 4.5 trial version

Download demo example

Order ComPort for Android USB license $80,- USD (license for one developer)

Order ComPort for Android USB multilicense $240,- USD (license for all developers in company)

Order ComPort for Android USB year upgrades $40,- USD (registered users only)

Order ComPort for Android USB year upgrades multilicense $120,- USD (registered multilicense users only)

Order Winsoft Component Package

What files should be deployed to Android device?
Add this file in Delphi Deployment window:

Local Name	Remote Path	Note
device_filter.xml	res\xml\

Add these lines to AndroidManifest.template.xml file:

<intent-filter>
  <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
</intent-filter>

<meta-data android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" android:resource="@xml/device_filter" />

How can I determine chip used in USB/RS232 adapter?
Use HWiNFO on PC and USB Library for Android demo example on Android.

ComPort