Scan to Download
With its seamless support for a wide range of USB to serial converters and devices, Serial USB Terminal is a must-have tool for embedded developers and Arduino enthusiasts. This free application, available for Android devices, allows you to establish stable UART connections on the go without the hassle of being tethered to a laptop. Its clean interface and scripting capabilities make monitoring sensor streams and automating tasks a breeze. From handling messy binary protocols to effortlessly connecting CDC devices like Arduino Leonardo, this app is an engineering marvel that brings the power of a workstation right to your pocket. No hidden costs, ads, or subscriptions - just pure functionality and convenience.
Extensive Compatibility: Serial USB Terminal is compatible with a wide range of USB to serial converters and devices, making it a versatile tool for microcontroller programming and debugging.
Clean and Responsive Interface: The terminal interface is easy to use and provides real-time monitoring of sensor data, making it ideal for field testing and prototype development.
Seamless CDC/ACM Handling: The application seamlessly handles CDC devices, such as Arduino boards, without the need for additional adapters, simplifying the connection process.
Free of Cost: All functionalities of the app are provided at no cost, with in-app purchases solely for the 'Donate' option, allowing users to support development if desired.
Test USB OTG Compatibility: Before using the app, verify that your Android device supports USB OTG (Host Mode) using apps like "USB OTG Checker".
Take Advantage of File Transfer: Utilize the app's support for raw binary transfer to send hex codes, firmware chunks, or files directly via the terminal for convenience.
Utilize Scripting Support: Make use of the scripting support to automate tasks, send pre-defined command sequences, and perform multi-step device configurations for efficient testing and development.
Serial USB Terminal is a must-have tool for embedded developers and enthusiasts, offering extensive compatibility, a user-friendly interface, seamless CDC handling, and free access to all features. With the ability to test USB OTG compatibility, transfer files, and automate tasks, this application streamlines the debugging and programming process for microcontroller devices. Whether you are a seasoned developer or a hobbyist, Serial USB Terminal provides essential functionality in a convenient and cost-effective package. Don't miss out on this powerful Swiss Army Knife for your embedded projects.
File size： 2.47 M Latest Version： 1.53
Requirements： Android Language： English
Votes： 184 Package ID： de.kai_morich.serial_usb_terminal
Developer： Kai Morich
Comment
Kris De Vos
Better app than others I tried, nicer and neater interface. I'd happily buy this it could handle ANSI eg VT100 (so I don't have the received escape sequences showing on screen and clobbering it).
2025-08-11 18:23:54
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).
2025-08-11 04:58:00
Tim Webb
Excellent and reliable app. Very handy for remote mounted uCs where taking a whole computer would be impractical. Tested on a Pixel 5 and Samsung Tab A8. Multiple connection protocols, configurable interface, able to send commands.
2025-08-11 03:40:39
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!!! ;-)
2025-08-10 05:59:52
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
2025-08-09 13:37:48
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!
2025-08-09 09:52:01
Colby Schlaht
Great app. Would be really nice to have an auto connect/reconnect too
2025-08-09 08:26:28
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.
2025-08-08 23:56:36
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
2025-08-07 21:13:35