About Serial USB Terminal
'Serial USB Terminal' is a line-oriented terminal / console app for microcontrollers, arduinos and other devices with a serial / UART interface connected with a USB to serial converter to your android device. This app...
'Serial USB Terminal' is a line-oriented terminal / console app for microcontrollers, arduinos and other devices with a serial / UART interface connected with a USB to serial converter to your android device.
This app supports USB to serial converters based on
- FTDI FT232, FT2232, ...
- Prolific PL2303
- Silabs CP2102, CP2105, ...
- Qinheng CH340, CH341
and devices implementing the USB CDC protocol like
- Arduino using ATmega32U4
- Digispark using V-USB software USB
- BBC micro:bit using ARM mbed DAPLink firmware
To connect USB to serial converters, your android device must support USB OTG aka. USB host mode. Most devices support this today, but in case of issues check with one of the various USB test apps, if host mode is enabled in your android kernel.
All features in this app are free. In-App purchase is only used for the 'Donate' option.
Looking for source code? Here you find a simplified variant of this app:
https://github.com/kai-morich/SimpleUsbTerminal
Previous Versions
Here you can find the changelog of Serial USB Terminal since it was posted on our website on 2019-09-08 18:53:43.
The latest version is 1.58 and it was updated on 2026-06-11 04:48:19. See below the changes in each version.
Serial USB Terminal version 1.58
Updated At: 2026-06-09
Changes: 1.58 2026-05-01
NEW macros w/o newline
NEW hex macros with delay
1.57 2025-11-07
FIX copy from main text view with unmodified spaces
INFO Android 5.0 as minimum version
1.56 2025-03-17
FIX single CR handling for newline CR+LF setting
1.55 2024-07-21
NEW flow control for FTDI, PL2303, CP210x
Serial USB Terminal version 1.57
Updated At: 2025-11-08
Changes: 1.57 2025-11-07
FIX copy from main text view with unmodified spaces
INFO Android 5.0 as minimum version
1.56 2025-03-17
FIX single CR handling for newline CR+LF setting
1.55 2024-07-21
NEW flow control for FTDI, PL2303, CP210x
1.54 2024-06-02
NEW disable send button if send takes more than 0.2sec
FIX sending large data at very low baud rate caused 'connection lost'
FIX reduce CPU/battery usage when control lines are shown
1.53 2024-01-12
FIX improved notification enabling
Serial USB Terminal version 1.56
Updated At: 2025-03-19
Changes: 1.56 2025-03-17
FIX single CR handling for newline CR+LF setting
1.55 2024-07-21
NEW flow control for FTDI, PL2303, CP210x
1.54 2024-06-02
NEW disable send button if send takes more than 0.2sec
FIX sending large data at very low baud rate caused 'connection lost'
FIX reduce CPU/battery usage when control lines are shown
1.53 2024-01-12
FIX improved notification enabling
Serial USB Terminal version 1.55
Updated At: 2025-03-13
Changes: 1.55 2024-07-21
NEW flow control for FTDI, PL2303, CP210x
1.54 2024-06-02
NEW disable send button if send takes more than 0.2sec
FIX sending large data at very low baud rate caused 'connection lost'
FIX reduce CPU/battery usage when control lines are shown
1.53 2024-01-12
FIX improved notification enabling
1.52 2024-01-09
NEW added "Settings > Misc. > Show notification when connected" because not shown in notification bar by default on Android 14
Serial USB Terminal version 1.54
Updated At: 2024-07-21
Changes: 1.54 2024-06-02
NEW disable send button if send takes more than 0.2sec
FIX sending large data at very low baud rate caused 'connection lost'
FIX reduce CPU/battery usage when control lines are shown
1.53 2024-01-12
FIX improved notification enabling
1.52 2024-01-09
NEW added "Settings > Misc. > Show notification when connected" because not shown in notification bar by default on Android 14
FIX Android 14 USB permission dialog response handling
Serial USB Terminal version 1.53
Updated At: 2024-01-14
Changes: 1.53 2024-01-12
FIX improved notification enabling
1.52 2024-01-09
NEW "Settings > Misc. > Show notification when connected" because not shown in notification bar by default on Android 14
FIX Android 14 USB permission dialog response handling
1.51 2023-12-17
FIX Android 14 USB permission dialog
1.50 2023-11-25
FIX improved composite CDC devices support
1.49 2023-06-18
NEW show active logging in toolbar
1.48 2023-05-01
NEW macros with repeat option
Serial USB Terminal version 1.52
Updated At: 2024-01-09
Changes: 1.52 2024-01-09
NEW "Settings > Misc. > Show notification when connected" because not shown in notification bar by default on Android 14
FIX Android 14 USB permission dialog response handling
1.51 2023-12-17
FIX Android 14 USB permission dialog
1.50 2023-11-25
FIX improved composite CDC devices support
1.49 2023-06-18
NEW show active logging in toolbar
1.48 2023-05-01
NEW macros with repeat option
Serial USB Terminal version 1.51
Updated At: 2023-12-17
Changes: 1.51 2023-12-17
FIX Android 14 USB permission dialog
1.50 2023-11-25
FIX improved composite CDC devices support
1.49 2023-06-18
NEW show active logging in toolbar
1.48 2023-05-01
NEW macros with repeat option
1.47 2023-03-11
NEW detect CDC devices by USB interface types instead of fixed VID+PID -> no more driver selection required for standard CDC devices
Serial USB Terminal version 1.50
Updated At: 2023-11-25
Changes: 1.50 2023-11-25
FIX improved composite CDC devices support
1.49 2023-06-18
NEW show active logging in toolbar
1.48 2023-05-01
NEW macros with repeat option
1.47 2023-03-11
NEW detect CDC devices by USB interface types instead of fixed VID+PID -> no more driver selection required for standard CDC devices
1.46 2022-07-31
NEW timestamp format with date
NEW smaller font size configurable
FIX spacing for HEX display mode
FIX PL2303G detection
Serial USB Terminal version 1.49
Updated At: 2023-11-25
Changes: 1.49 2023-06-18
NEW show active logging in toolbar
1.48 2023-05-01
NEW macros with repeat option
1.47 2023-03-11
NEW detect CDC devices by USB interface types instead of fixed VID+PID -> no more driver selection required for standard CDC devices
1.46 2022-07-31
NEW timestamp format with date
NEW smaller font size configurable
FIX spacing for HEX display mode
FIX PL2303G detection
1.45 2022-04-12
FIX crash on Android 12 at Settings-> Misc-> Save+log folder
Disclaimer
Official Google Play Link
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