CQRobot RS485 or RS422 to USB Serial Communication Port Converter Adapter Cable. with FTDI FT232 Chipset, 300-921600bps Rate, 2.2 Meters, for Win7 / Win8 / Win10, ME, Linux, MAC, SCM, Android, etc. :
USB Communication between Android and Arduino - The Engineering Projects
microcontroller - USB communication between Android phone and MCU while continuously charging the phone - Electrical Engineering Stack Exchange
Kotlin 101: How to communicate via Serial Connection Part 1 - YouTube
Arduino Android USB Serial Communication With OTG Cable : 11 Steps - Instructables
USB Communication between Android and Arduino - The Engineering Projects
GitHub - ubcst/linux-android-usb-comms: Linux to Android communication program using USB
Quick start
4 Methods to Fix Android Phone Not Recognized but Charging
Android USB Products Application - NanjingQinhengMicroelectronics
Establishing Communication between PSLab and an Android Device using the USB Host API | blog.fossasia.org