serial port tool

For microcontrollers, Arduinos, and other devices with a serial or UART interface linked to your Android device via a USB to serial converter, there is an application called "Serial conn" that functions as a line-oriented terminal or console.

Device Compatibility

Chips that convert USB to serial are
supported by this library:

FT230X, FT231X, FT234XD, FT232R, FT232H,
and FTDI..

The CDC/ACM protocol is implemented
by Prolific PL2303 Silabs CP2102, CP210*
Qinheng CH340, CH341A, and CH9102 devices.