Serial USB Terminal

Category： Tools Date：2025-09-04 13:45:01

Rating： 4.1

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Introduction

The Serial USB Terminal app is a must-have for developers working with microcontrollers and Arduinos who want the convenience of connecting their devices to an Android phone or tablet. With support for a wide range of USB to serial converters and devices utilizing the USB CDC protocol, this free app offers seamless UART connections and smooth handling of binary protocols. Whether you're monitoring sensor streams or automating AT command sequences, the clean interface and built-in scripting support make it easy to debug and test hardware on the go. Plus, with no hidden costs or subscriptions, this app is a valuable Swiss Army knife for any embedded developer.

Features of Serial USB Terminal:

* Supports a wide range of USB to serial converters and devices with USB CDC protocol

* Requires Android device to support USB OTG (Host Mode)

* Provides all functionalities at no cost, with in-app donations option available

* Allows for sending/receiving raw binary data and files

* Offers seamless handling of CDC devices like Arduino Leonardo

* Includes scripting support for automating tasks and command sequences

Conclusion:

Looking for a versatile tool to connect, debug, and automate tasks for your microcontrollers and other devices? Look no further than this app with robust driver support, seamless handling of various devices, and a clean interface. Best of all, it's completely free with no hidden costs or locked features. Download Serial USB Terminal now and experience the ease of engineering brilliance in your pocket!

Free Google Play

More Information

File size： 2.47 M Latest Version： 1.53

Requirements： Android Language： English

Votes： 86 Package ID： de.kai_morich.serial_usb_terminal

Developer： Kai Morich

Screenshots

Comment

Michael Mckey

Fantastic app. Simple and easy to use interface. Effortless communication with Arduino and makes all my projects more portable and easier to debug(without having to add any extra code).

2025-09-07 17:08:29
Joshua Phelps

Excellent app! Setting the driver to CDC lets me connect to a 32u4 microcontroller as I wanted to. Overall the app is extremely well made. Saving and logging data worked perfectly (the data files went to /Android/data/de.kai_morich.serial_usb_terminal/files by default on my phone). Thank you!

2025-09-07 14:21:04
Miguel Nuñez

This app needs a fix. Apps got "not responding" when receiving large amount of data. I tested with esp32 (silabs driver), when upload anything vía ArduinoOTA. Apps got "not responding" after reach 17% of OTA upload. Please fix because i test another serial app and works fine. Thanks

2025-09-07 11:36:11
A Google user

Liked it so much I bought with a smile. Connects to my Prolific 2303 and CH340s cleanly which means I don't have to carry my laptop to every service call. Customers are amazed to see me arrive with just a small tool kit and plug in my P20 and talk to their systems. To make it perfect, needs Xmodem file transfer and VT100 terminal emulation (at least the cursor control and erasing subset). If it gets this I can do firmware downloads to! It has to get 6 stars then - I'd even buy it again!!! ;-)

2025-09-07 06:03:13
A Google user

This app does everything I could expect a communication app to do. Yet it is quite easy to configure and use. It's rock solid I don't think it's ever crashed or done anything unusual. I can't think of any improvements

2025-09-07 04:02:16
A Google user

The only in-app purchase I could find was a donate button, which i gladly clicked. This is a very no-nonsense app. It does what it says, and it does it well with a clean, simple interface. This is how all apps should be.

2025-09-05 19:41:55