BY VIEWCAST    UPDATED November 2, 2025

The Serial USB Terminal app is a highly functional and efficient tool for professionals and hobbyists alike who require robust serial communication capabilities without the bulk and inconvenience of a laptop. Whether it’s for connecting a Raspberry Pi, interfacing with CNC machinery, or debugging microcontroller applications, this app proves to be an invaluable resource. Its swift connection setup with devices such as the Google Pixel 4a and Xiomi Poco F3, via USB-C to serial adapters, highlights its ease of use and versatility.
One of the standout features of the Serial USB Terminal is its ad-free environment and absence of data collection, making it a user-friendly option focused on performance and reliability. Its compatibility with various devices and adapters, such as the Huawei P30 Pro plus with triplite USB-C to serial and dB9 null modem adapter, demonstrates its broad utility across different hardware setups. Users have found it particularly helpful for tasks requiring mobility, such as service calls or field debugging, thanks to its compatibility with devices like the Prolific 2303 and CH340.
The app’s functionality is further enhanced by its ability to support complex operations such as sending and receiving hex data, using color-coded macros, and exporting session histories. These features are invaluable for professionals working on hardware design and testing, or those needing to configure switches and routers without a PC. The application also supports feature requests from users, such as adding a "character delay" for multiline macros, showcasing the developer's commitment to making continuous improvements based on user feedback.
Despite its extensive functionality, the app remains straightforward and easy to use, making it suitable for a wide range of applications from hobbyist projects with Arduino devices to professional industrial settings. Its clean interface and straightforward operation have been praised, along with the convenience of being able to save session data for future reference. However, users have noted that there is a limit on the number of lines that can be saved or shared at once, indicating room for improvement in data management features.
As the Serial USB Terminal continues to evolve, additions such as Xmodem file transfer and VT100 terminal emulation are eagerly anticipated by the user community. These enhancements would further solidify the app’s standing as an essential tool for anyone in need of reliable and versatile serial communication capabilities.
Yes, the app supports USB-C to serial adapters, facilitating its use with a wide range of modern devices.
Yes, the Serial USB Terminal is designed to be ad-free and does not collect user data, ensuring a focus on functionality and user privacy.
Yes, the developer is open to feature requests from users and has implemented suggestions to improve the app’s utility.
Yes, the app is capable of connecting to a variety of devices, including industrial power relays and microcontrollers, for a broad array of applications.
While the app allows session data to be exported, there is currently a limit on the number of lines that can be saved or shared at one time.
Serial USB Terminal is primarily a mobile app designed for smartphones. However, you can run Serial USB Terminal on your computer using an Android emulator. An Android emulator allows you to run Android apps on your PC. Here's how to install Serial USB Terminal on your PC using Android emuator:
Visit any Android emulator website. Download the latest version of Android emulator compatible with your operating system (Windows or macOS). Install Android emulator by following the on-screen instructions.
Launch Android emulator and complete the initial setup, including signing in with your Google account.
Inside Android emulator, open the Google Play Store (it's like the Android Play Store) and search for "Serial USB Terminal."Click on the Serial USB Terminal app, and then click the "Install" button to download and install Serial USB Terminal.
You can also download the APK from this page and install Serial USB Terminal without Google Play Store.
You can now use Serial USB Terminal on your PC within the Anroid emulator. Keep in mind that it will look and feel like the mobile app, so you'll navigate using a mouse and keyboard.

