Serial USB Terminal

Serial USB Terminal is a line-oriented terminal app designed for developers, makers, and engineers who need to communicate with microcontrollers, Arduino boards, and embedded devices via USB serial connections.

Connect and debug microcontrollers with ease. This app works seamlessly with industry-standard USB to serial converters including FTDI FT232 and FT2232 chipsets, Prolific PL2303, Silicon Labs CP2102 and CP2105, and Qinheng CH340 and CH341 modules. It also supports USB CDC protocol devices such as Arduino boards with ATmega32U4 processors, Digispark boards running V-USB software, and BBC micro:bit boards with ARM mbed DAPLink firmware.

To use this serial terminal app, your Android device must support USB OTG (USB host mode). Most modern Android phones and tablets include this capability — you can verify compatibility using standard USB test utilities if needed.

Develop and test embedded systems without limitations. Every feature is completely free to use; the only in-app purchase option is a voluntary donation to support ongoing development. Whether you're prototyping IoT projects, debugging Arduino sketches, or communicating with custom hardware, Serial USB Terminal provides the straightforward interface you need for reliable serial communication on the go.

Ideal for hobbyists, students, and professional developers working with embedded systems and hardware prototyping.