USB Serial Monitor

Contains ads
3.7
45 reviews
5K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image

About this app

For the hobbyist, connect to USB-Serial devices and send/monitor serial data. Connect to devices containing USB-Serial chips such as FTDI, Mega16u2, CH340, CP210x and PL230x.


Adjust connection settings such as baud rate, data bits, polarity and stop bits.

ASCII and Hex display formats.

Save data to file.

6 Memory buttons for send strings.

Option to enter data as Hexadecimal.

Results screen to show technical details of connected USB devices.

In app user guide.


Send up to 256 characters at a time. Monitor will display up to 10000 lines.
Updated on
Jan 31, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

3.9
41 reviews
Tim Nelson
July 4, 2022
I have been trying to find an app that would be the equivalent of running Teraterm on a PC. This is the only app I have found that can connect to my FTDI cable. What I want is to type a character and have it sent immedtately. With this app I must clear the input window (1), click on the input window (2), type in the pop-up window (3), close the pop-up by hitting "ok" (4), then type the send button. So 5 actions just to send 1 character. In addition it drops the first two charcters coming back.
2 people found this review helpful
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Ronald Holshouser
July 3, 2022
Very convenient and easy to use for testing serial ports....use at work all the time.
2 people found this review helpful
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Saikat Banerjee
June 22, 2021
Captures all data however the data can only be displayed in hex format but cannot be saved in Hex format
4 people found this review helpful
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What's new

v1.03 Bug fixes & Updated to use newer code methods to better target and run reliably on devices in 2024.